computer capsule for sbi po/clerk mains -2016

computer capsule for sbi po/clerk mains -2016
COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
COMPUTER CAPSULE SBI PO/CLERK MAINS 2016
Dear Readers,
We are presenting you the Computer Capsule. Because the SBI clerk mains tend to be held in the end of this month so
as per our commitments towards the needs of every student, this capsule contains all the important facts and details that can
be asked in the Upcoming SBI clerk exam. We are starting this with the introduction of the Syllabus. Let us begin now :
Syllabus of The Computer Section
1. Fundamentals of the Computer :
i) Hardware and Software
ii) Memory and Memory Units
iii) Number System
2. Internet
3. Microsoft Office (MS-Office)
4. Networking
5. DBMS (Database Management System)
6. Full Forms/Abbreviations and Important Terms
7. Shortcut Keys
8. Miscellaneous (Latest in Computers and Mobile
Technology)
Computer i.e. a combination of two words “compute”
+”er”. Compute means calculation and “er” means a device.
It can perform all type of mathematical and logical
Analog computer introduced by Lord Kelvin. Numerical
data are represented by measurable physical variables such
as electrical voltage. A thermometer is a simple analog
computer.
Digital computer that accepts and process data in the form
of numbers and all the character are converted into binary
code
ASCII code (American Standard Code for Information
Interchange) use as a standard to assign a numerical value to
each character
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operations, it can accept data, store data, retrieve data and
print data.
Charles Babbage was known as father of computer. He
invented two machines in 1822 introduced Difference
Engine and in 1834, introduced Analytical engine.
ENIAC was the first digital computer and it was invented
by J.Presper Eckert and John Mauchly at the university
of Pennsylvania and began construction in 1943. It uses
18000 vacuum tubes as a storing device.
MIT introduces the whirlwind machine (first computer
with RAM)on march 8 1955.
First computer company was founded by J. Presper Eckert
and John Mauchly, initially named Electronic Controls
company, later changed to The Eckert–Mauchly
Computer Corporation (EMCC) and released a series of
mainframe computer under the name of UNIVAC.
Hybrid computer used the combined feature of analog and
digital machine. you can see hybrid computer in geological
departments.
Microcomputer these are small relatively inexpensive
computer designed for personal and office use. It has lowest
storing and processing speed. These can be laptop or
desktop.
Minicomputer powerful as compare to microcomputer it
has higher memory provide faster operating speeds and
large storage capacities than microcomputers. It can be used
as a server and capable of supporting from 2 to 200 users.
Mainframe computer it has very high memory and
processing speed and used as a server (can support
thousands of users)
Super computer can be used for complex type of application
i.e. specific research, weather forecasting, Weapon designing
etc…..
PARAM-8000 India’s first super computer developed by CDAC pune in 1998.
Tianhe-2 is china’s super computer and considered as
world’s fastest super computer.
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Shasra T is considered as India’s fastest super computer of
India manufactured by Indian Institute of science.
Server are dedicated computers that serve the needs or
request of other programs or computer.
Browser are program which installed on the user’s
computer and help him to communicate or send request on
the network. In others word it help to access the internet.
Generation of computer hardware
Subject
Period
Circuitry
1st generation
1940-1956
Vacuum tube
2nd generation
1956-1963
Transistor
3rd generation
1964-1971
Integrated chips
(IC)
4th generation
1971-present
Microprocessor (VLSI)
Memory Capacity
20 KB
128KB
1MB
Processing Speed
300 IPS
Programming
Language
300 IPS inst. Per
sec.
Assembly
Language
1MIPS (1 million
inst. Per sec.)
C,C++
Semiconductor type
and very high
Faster than 3rd
generation
C,C++,Java
Example of
computers
UNIVAC,
EDVAC
High level
language
(FORTRAN,
COBOL, ALGOL)
IBM 1401, IBM
7094, CDC 3600, D
UNIVAC 1108
IBM 360 series,
1900 series
ALGOL – Algorithm language.
COBOL- Common Business Oriented language
Computer fundamentals:
The device which is used with a computer to display or store
data is called Peripherals.
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Pentium series
Multimedia,
Stimulation
5th generation
present & beyond
ULSI (Ultra Large
Scale Integration)
technology
VLSI and ULSI
Very fast
All the Higher level
languages,
Neural networks,
Artificial
Intelligence,
Robotics
The mechanical, magnetic, electronic and electrical
components that comprises a computer system such as the
Central Processing Unit (CPU), monitor, keyboard, etc. is
known as Hardware.
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The data that is fed into a computer processor received into
the computer by a keyboard or other sources is called Input
Examples of input devices include keyboards, mouse,
scanners, digital cameras and joysticks
A keyboard is a typewriter-style device, which uses an
arrangement of buttons or keys, to act as mechanical levers
or electronic switches.
Most of the commonly available personal computers have a
keyboard, popularly known as Qwerty.
The keys labeled Fl to F12 on the keyboard are called
Function Keys.
The keys include the letter keys (0, 1, 2, ..., 9; A, B, Z), which
are generally laid out in the same style as in typewriters are
known as Alphanumeric Keys.
'Caps lock' and 'Num lock' keys are called as Toggle Keys
because when pressed, they change their status from one
state to another.
Numeric Keypad is a keypad located on the right hand side
of the keyboard. It consists of digits and mathematical
operators.
A Modifier key is a special key (or combination) on a
computer keyboard that temporarily modifies the normal
action of another key when pressed together. By themselves,
modifier keys usually do nothing; that is, pressing any of the
Shift, Alt, or Ctrl keys alone does not (generally) trigger any
action from the computer.
A Mouse is the most popular input device which is used
today for interactive processing and for the one line entry of
data for batch processing.
Drag and Drop refers to the action of clicking and holding
down the mouse button, while moving the mouse and then
releasing the mouse button.
The first computer mouse was invented by Douglas
Engelbart.
Joystick is the device that moves in all directions and
controls the movement of a pointer.
A Touch Screen is a type of display screen device that is
placed on the computer monitor to allow direct selection or
activation of the computer when the user touches the screen.
Light Pen is the pen shaped device, which can sense light
and is used to point at spots on a video screen.
A technology enables a high-speed reading of large
quantities of data and transferring these data to the
computer without using a keyboard. It is referred as Optical
Mark Reader (OMR).
It uses a beam of light that is reflected on the paper with
marks, to capture presence and absence of marks.
MICR reads the characters by examining their shapes in a
matrix form and the information is then passed `on to the
computer. MICR stands for Magnetic Ink Character
Reader. It provides a high level of security and is therefore
used by the banking industry for faster processing of the
cheques
It is a machine readable code, which is represented by
parallel vertical lines with varying widths. For reading these
bar-coded data, a device is used, which is known as a Bar
Code Reader (BCR)
Optical Character Recognition (OCR) is used to scan the
document containing text. It is the mechanical or electronic
conversion of scanned or photographed images of
typewritten
or
printed
text
into
machineencoded/computer-readable text.
A computer is an electronic device that accepts data from the
user (input), processes the data by performing calculations
and operations on it and generates the desired Output.
An output device is any piece of computer hardware
equipment used to communicate the results of data
processing carried out by an information processing system
(such as a computer) which converts the electronically
generated information into human-readable form
The printed form of output is referred as Hard Copy.
The form of output displayed on the screen is referred as
Soft Copy.
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The device that prints information from the computer onto
the paper is Printer.
Pages Per Minute (PPM) is the unit used to count the speed
of the printer.
On the basis of technology, printers are categorized into
Impact and Non- Impact Printers.
Impact printers create an image by using some mechanism
to physically press an inked ribbon against the page, causing
the ink to be deposited on the page in the shape desired.
a) Dot
matrix:
The
dot-matrix
printer
uses
print heads containing from 9 to 24 pins. These pins
produce patterns of dots on the paper to form the
individual characters
b) Daisy wheel: A hammer strikes a “petal” containing a
character against the ribbon, and the character prints on
the paper. Its speed is slow typically 25-55 characters
per second.
c) Line printer:- Line printers, or line-at-a-time printers,
use special mechanism that can print a whole line at
once; they can typically print the range of 1,200 to 6,000
lines per minute
d) Drum printer:- A drum printer consists of a solid,
cylindrical drum that has raised characters in bands on
its surface. The number of print positions across the
drum equals the number available on the page.
e) Chain printer:- A chain printer uses a chain of print
characters wrapped around two pulleys
f) Band printer:- Band printer has a steel
band divided into five sections of 48 characters each.
Non – Impact Printers do not touch the paper when
creating an image.
A) Ink-jet printers:- One or more nozzles in the print head
emit a steady stream of ink drops. Droplets of ink are
electrically charged after leaving the nozzle. The
droplets are then guided to the paper by electrically
charged deflecting plates
B) Laser printers:- Laser printers use buffers that store an
entire page at a time. When a whole page is loaded, it
will be printed.
C) Thermal printer:- is a digital printing process which
produces a printed image by selectively heating coated
thermo chromic paper, or thermal paper as it is
commonly known, when the paper passes over the
thermal print head.
A pen based output device, attached to a computer for
making vector graphics, that is, images created by a series of
many straight lines is known as Plotters.
The number of pixels displayed on a screen is known as
Resolution.
A Monitor is a TV-like display attached to the computer on
which the output can be displayed and viewed. It can either
be a monochrome display or a color display.
The set of instructions, which control the sequence of
operations, are known as Program. It is a sequence of
instructions, written to perform a specified task with a
computer.
Application software is a group of program designed
for fulfill the demand of end user i.e. MS office.
System software is a program which is created for the
system and to make the system user friendly such as
operating system or is a type of computer program that is
designed to run a computer's hardware and application
programs.
Utility software designed to help analyze, configure,
optimize or maintain a computer such antivirus software.
Operating system is a set of programs that help in
controlling and managing the hardware and the software
resources of a computer system. Main functions of operating
system are : Process management
 Memory management
 File ,management
 Security
 Command and interpretation.
 Resource allocation
Types of OS.
1) Batch operating system data and program that need to
be processed are bundled and collected as a batch and
executed together.
2) Multiprogramming operating system it allows the
instruction and data from two or more separate process
to reside in primary simultaneously. Multiprogramming
system are multitasking multiuser and multiprocessing
operating system.
3) Single user it is designed for single user and a single
person use it at a time i.e. DOS window’s 95 etc.
4) Distributed operating system which manages a
collection of independent computers and makes them
appear to the user of the system as a single computer.
5) Real Time Operating System (RTOS) It is a computing
environment that reacts to input within a specific time
period. It is used at those Places in which we Requires
higher and Timely Response.
A set of instructions that tells the computer about the tasks
to be performed and how these tasks are to performed, is
known as Software.
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An Arithmetic Logic Unit (ALU) is a digital circuit that
performs integer arithmetic and logical operations. The ALU
is a fundamental building block of the central processing unit
of a computer
Control Unit is responsible for controlling the overall
operations of computer. It coordinates the sequence of
execution of instructions and controls the overall functioning
of the computer.
Instruction Execution: the program which is to be executed
is a set of instruction which are stored in memory. The CPU
executes the instructions of program to complete a task and
this execution takes place inside the CPU with the help of
registers ALU(arithmetic logic unit) and CU(control unit).
When the processor executes instructions, data is
temporarily stored in small local memory location and these
are called registers …..
Accumulator Register:- which stores the immediate result
of arithmetic and logical operations.
Memory address register (MAR) :- which contain the
address of memory location to which data is to be stored.
Program counter :- which contain the address of the next
instruction to process.
Instruction register:- which contain the current instruction
being processed
A Software instructs the computer what to do and how to
do it. It is a set of instructions that tells the computer about
the tasks to be performed and how these tasks are to
performed
An unprocessed collection or representation of raw facts
represented in a manner suitable for communication,
interpretation or processing by humans or by automatic
means, is known as Data.
Personal computers use a number of chips mounted on a
main circuit board called Motherboard.
The CPU is fabricated as a single Integrated Circuit (IC)
chip. It is also known as the Microprocessor.
Interpreter converts high level language program into
machine language. It is very slow because it convert program
line by line.
Compiler it also translate the program from high level
language to machine language. It is very fast because it
convert the whole program into machine language.
Assembler It is used for converting the code of low level
language (assembly language) into machine level language.
Low level language these are coded in a form which is easy
to understand by the processor.
Machine language it is also a type of low level language
these can be develop in binary language (0 and 1) .
Assembly language it is also a type of low level language
and using the human readable instruction of the CPU. It is
written as ‘MOV A.’
High level language programmer can write code in simple
easy language, it is user friendly
C language it is a middle level programming language and
also known as procedural language
C++ high level language uses the oops concept.
Fortran it is known as formula translation .it is used for
scientific application
COBOL (Common Business Oriented Language) used for
record keeping and data management in business
organizations.
BASIC (Beginner’s All Purpose Symbolic Instruction
Code) first language designed for non-professional
programmers.
PASCAL it is developed as a teaching tool for programming
concepts
Multiprocessing is the use of two or more central
processing units (CPUs) within a single computer system.
The term also refers to the ability of a system to support
more than one processor and/or the ability to allocate tasks
between them
Program execution in computers:
Language processor (Translator) programmer write their
program in one of the high level language because it is much
easy to code in these language but computer does not
understand any of these language so it is necessary to
convert program into a machine language so translator do
this work.
Loader it load the code which is translated by translator into
the main memory and makes it ready to execute.
Linker is used to combine all the object files and convert
them into a final executable program.
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MEMORY MANAGEMENT
8 bit
1 byte
1024 B
1 KB (Kilo Byte)
1024 KB
1 MB (Mega Byte)
1024 MB
1 GB (Giga Byte)
1024 GB
1 TB (Tera Byte)
1024 TB
1 PB (Peta Byte)
1024 PB
1 EB (Exa Byte)
1024 XB
1 ZB (Zeta Byte)
1024 ZB
1 YB (Yota Byte)
Primary memory
Primary storage, also known as main storage and it is the
area in a computer in which data is stored for quick access
by the computer's processor. The terms random access
memory (RAM) and memory are often as synonyms for
primary or main storage. Primary storage is volatile and can
be contrasted with non-volatile secondary storage, also
known as auxiliary storage.
Cache memory is a smaller, faster memory which stores
copies of the data from frequently used main memory
locations. A CPU cache is a hardware cache used by the
central processing unit (CPU) of a computer to reduce the
average time to access data from the main memory.
Secondary memory is where programs and data are kept
on a long-term basis. Common secondary storage devices are
the hard disk and optical disks. The hard disk has enormous
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storage capacity compared to main memory. The hard disk is
usually contained inside the case of a computer.
Read-only memory (ROM) is a storage medium used in
computers and other electronic devices. Data stored in ROM
can only be modified slowly or with difficulty, or not at all.
ROM is non-volatile and the contents are retained even after
the power is switched off.
It only allows reading.
The types of ROM include PROM, EPROM and EEPROM.
Random Access Memory (RAM), allows the computer to
store data for immediate manipulation and to keep track of
what is currently being processed.
RAM is referred to as volatile memory and is lost when the
power is turned off.
It also known as read/write memory as information can be
read from and written onto it.
The two main types of RAM are static RAM and dynamic
RAM.
SRAM retains data as long as power is provided to the
memory chip and need not be refreshed periodically. It is
often used as CPU Cache memory. SRAM stands for Static
Random Access Memory.
The data on DRAM continues to move in and out of the
memory as long as power is available and must be
continually refreshed to maintain the data. DRAM stands for
Dynamic Random Access Memory.
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Virtual memory is memory on the hard disk that the CPU
uses as an extended RAM
Access Time
Primary
memory
Secondary
memory
Faster
Storage
Capacity
Smaller
Cost per bit
of storage
High
Slower
Higher
Low
Memory can also be categorized on the basis of their
material
Semiconductor memory: such as RAM, ROM, EPROM, and
flash memory.
Magnetic memory:-such as hard disk, floppy disk and
magnetic tapes.
Optical memory:-such as computer disk, DVD and blue-ray
disk.
A bus, in computing, is a set of physical connections (cables,
printed circuits, etc.) which can be shared by multiple
hardware components in order to communicate with one
another.
The address bus (sometimes called the memory bus)
transports memory addresses which the processor wants to
access in order to read or write data. It is a unidirectional
bus.
The data bus transfers instructions coming from or going to
the processor. It is a bidirectional bus.
The control bus (or command bus) transports orders and
synchonisation signals coming from the control unit and
travelling to all other hardware components. It is a
bidirectional bus, as it also transmits response signals from
the hardware.
Number System
Decimal, Binary, Octal and Hexadecimal
Equivalents
Decimal
Binary
Octal
Hexadecimal
0
0000
000
0
1
0001
001
1
2
0010
002
2
3
0011
003
3
4
0100
004
4
5
0101
005
5
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6
7
8
9
10
11
12
13
14
15
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
006
007
010
011
012
013
014
015
016
017
6
7
8
9
A
B
C
D
E
F
INTERNET
The Internet is a global system of interconnected computer
networks that use the standard Internet protocol suite
(TCP/IP) to link several billion devices worldwide.
It is a network of networks that consists of millions of
private, public, academic, business, and government
networks, of local to global scope, that are linked by a broad
array of electronic, wireless, and optical networking
technologies.
ARPANET adopted TCP/IP in 1983, and from there
researchers began to assemble the “network of networks”
that became the modern Internet.
The World Wide Web (abbreviated as WWW or W3,
commonly known as the Web) is a system of interlinked
hypertext documents that are accessed via the Internet.
A Website is a set of related web pages served from a single
web domain.
A Home page, index page, or main page is a page on a
website. A home page usually refers to:
 The initial or main web page of a website, sometimes
called the "front page" (by analogy with newspapers).
 The first page that appears upon opening a web browser
program, which is also sometimes called the start page.
This 'start page' can be a website or it can be a page with
various browser functions such as the visual display of
websites that are often visited in the web browser.
 The web page or local file that automatically loads when a
web browser starts or when the browser's "home" button
is pressed; this is also called a "home page". The user can
specify the URL of the page to be loaded, or alternatively
choose e.g. to re-load the most recent web page browsed.
 A personal web page, for example at a web hosting
service or a university web site that typically is stored in
the home directory of the user.
A Hyperlink is a reference to data that the reader can
directly follow either by clicking or by hovering or that is
followed automatically
A web browser (commonly referred to as a browser) is a
software application for retrieving, presenting and
traversing information resources on the World Wide Web.
Some of the famous browsers are Safari, Chrome, Firefox,
Bolt, UC Browser and Internet Explorer
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The Uniform Resource Locator, abbreviated as URL is a
specific character string that constitutes a reference to a
resource. In most web browsers, the URL of a web page is
displayed on top inside an address bar.
(i) An example of a typical URL would be
"http://www.bankersadda.com".
Here the domain name is ‘bankersadda.com’
Downloading means to receive data to a local system from a
remote system or to initiate such a data transfer
Uploading refers to the sending of data from a local system
to a remote system such as a server or another client with
the intent that the remote system should store a copy of the
data being transferred
An Internet Protocol address (also known as an IP
address) is a numerical label assigned to each device (e.g.,
computer, printer) participating in a computer network. It
acts as an identifier for a computer. It is a unique address for
every computer.
An email attachment is a computer file sent along with an
email message. One or more files can be attached to any
email message, and be sent along with it to the recipient.
Hotmail was co-founded by an Indian American
entrepreneur Sabeer Bhatia along with Jack Smith in July of
1996
CC (Carbon Copy) in e – mail indicates those who are to
receive a copy of a message addressed primarily to another.
The list of CC recipients is visible to all other recipients of the
message.
An additional BCC (blind carbon copy) field is available for
hidden notification; recipients listed in the BCC field receive
a copy of the message, but are not shown on any other
recipient's copy (including other BCC recipients)
Simplex: This, communication is unidirectional i.e. one of
the two devices can transmit the data and the other can only
receive the data. For e.g. Radio broadcasting, television
broadcasting etc.
Half duplex: This communication is bidirectional. Either of
the devices can act as transmitter or receiver but only one
device can transmit the data at one time. For e.g. WalkieTalkie.
Full Duplex: Here the communication is in both directions
and both the devices can simultaneously transmit the data.
For e.g. Telephone conversation.
Different types of network are: LAN, MAN and WAN.
A LAN (local area network) is a group of computers and
network devices connected together, usually within the same
building. By definition, the connections must be high speed
and relatively inexpensive (e.g., token ring or Ethernet).
A MAN (metropolitan area network) is a larger network that
usually spans several buildings in the same city or town.
A WAN (wide area network), in comparison to a MAN, is not
restricted to a geographical location, although it might be
confined within the bounds of a state or country. A WAN
connects several LANs, and may be limited to an enterprise
(a corporation or an organization) or accessible to the public.
The technology is high speed and relatively expensive. The
Internet is an example of a worldwide public WAN.
Networking Devices
Modem: Modem stands for Modulator-Demodulator. It is
used to connect computers for communication via telephone
lines.
Hub: It works at the Physical layer. It just acts like a
connector of several computers i.e. simply connects all the
devices on its ports together. It broadcasts all the data
packets arriving at it with no filtering capacity.
The Drafts folder retains copies of messages that you have
started but are not yet ready to send.
The first email was sent by Ray Tomlinson to himself in
1971.
DATA COMMUNICATION & NETWORKING
Data Communication deals with the transmission of digital
data from one device to another. Data is transferred through
a pathway called as communication channel which can be
physical wire connecting the devices or may be unguided
media like laser, microwave etc.
A communication channel has a source or transmitter at one
side and a designation or receiver at another side of the
network. The source of data origination is single but there
may be multiple receivers. A communication channel is of 3
types:
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Switch: It works at the Data Link Layer. It is used for
dividing a network into segments called subnets. It provides
filtering of data packets and prevents network traffic also.
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Repeater: It operates at the Physical Layer. It is used to
amplify a signal that has lost its original strength so as to
enable them to travel long distances. It can only join the
networks that transmit similar data packets. It does not have
filtering capacity i.e. all data including noise is amplified and
passed on in the network so don’t help in reducing network
traffic.
Router: It works at the Network Layer and is used to
connect different networks that have different architectures
and protocols. It sends the data packets to desired
destination by choosing the best path available thus reducing
network traffic. It routes the data packets using the routing
table that contains all the Information regarding all known
network addresses, possible paths and cost of transmission
over them. Availability of path and cost of transmission
decide sending of data over that path. It is of 2 types: static
(manual configuration of routing table is needed) and
dynamic (automatically discovers paths).
There are 4 octet and in a octet 8 bit are present. now
convert this into decimal which is equals to = 2 to the power
8
= 256 numbers
And if we count these from 0 so range is 0 to 255.
For class A range = 256/2
= 128
So range is 0 to 127.
For Class B range is starts from 128 because 127 is assigned
to class A.
Now the remaining numbers are 128
For B class we can assign 128/2 = 64 numbers , add this to
final range of A
=127+64 = 191
So class B range starts from 128 to 191
Same process is apply for class C its range starts from 192.
Now the remaining numbers are 64, so we can assign
64/2=32 numbers to class C
Class C final range is 192+32=223
Gateway: It operates in all the layers of the network
architecture. It can be used to connect two different
networks having different architectures, environment and
even models. It converts the data packets in form that is
suitable to the destination application. The two different
networks may differ in types of communication protocols
they use, language, data formats etc.
Now the remaining 32 numbers are divided equally between
D and E that is each class D and E have 16 numbers and these
class are reserved for further use.
Class D –224 to 239(223+16=239)
Class E – 240 to 255(239 +16=255).
Bridge: They are used two connect two LANs with the same
standard but using different types of cables. It provides an
intelligent connection by allowing only desired messages to
cross the bridge thus improving performance. It uses
physical addresses of the packets for this decision. It works
on
A Computer Virus is a computer program or code that can
replicate itself and spread from one computer system to
another system. A computer virus has the capacity to corrupt
or to delete data on your computer and it can utilize an email program to spread the virus to other computer systems
.In the worst case scenario, it can even delete everything on
your hard disk .The purpose of it is to disrupt the operation
of the computer or the program.
IPv4 - 32 bits numeric address
IPv6 - 128 bits hexadecimal address
IP addresses divide into 5 classes. the various classes of
networks specify. Ipv4 have 4 octets. These designate the
network id and host id.
Class
1st octet
2nd octet
3rd octet
4th octet
Class A
Net id
Host id
Host id
Host id
Class B
Net id
Net id
Host id
Host id
Class C
Net id
Net id
Net id
Host id
Class A range starts from 0.0.0.0 to 127.2555.255.255
(starting binary digit 0)
Class
B
range
starts
from
128.0.0.0
to
191.255.255.255(starting binary digit 10)
Class
C
range
starts
from
192.0.0.0
to
223.255.255.255(starting binary digit 110)
Class D range starts from
224.0.0.0 to
239.255.255.255(starting binary digit 1110)
Class
E
range
starts
from
240.0.0.0
to
255.255.255.255(starting binary digit 1111)
INFORMATION SECURITY
Some examples of Computer Virus are Trojan viruses.
Stealth viruses, worms, malware (malicious software),
Disk Killer, Stone virus, Sunday, Cascade, Nuclear, Word
Concept, etc.
Malware, short for malicious software, is any software
used to disrupt computer operation, gather sensitive
information, or gain access to private computer systems. It
can appear in the form of executable code, scripts, active
content, and other software.
Antivirus Software is used to scan the hard disk to remove
the virus from them. Some of the famous anti – viruses
available are Avast, Norton, Avira, Kaspersky, AVG, etc.
A person who uses his or her expertise to gain access to
other people’s computers to get information illegally or do
damage is a Hacker.
Authorization is the function of specifying access rights to
resources related to information security and computer
TRICK TO LEARN THESE RANGES
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
security in general and to access control in particular. More
formally, "to authorize" is to define an access policy.
Authentication is the act of confirming the truth of an
attribute of a single piece of data or entity. It might involve
confirming the identity of a person by validating their
identity documents, verifying the validity of a website with a
digital certificate, tracing the age of an artifact by carbon
dating, or ensuring that a product is what its packaging and
labeling claim to be. In other words, Authentication often
involves verifying the validity of at least one form of
identification.
Phishing is the attempt to acquire sensitive information
such as usernames, passwords, and credit card details (and
sometimes, indirectly, money) by masquerading as a
trustworthy entity in an electronic communication.
A logic gate is an elementary building block of a digital
circuit. Most logic gates have two inputs and one output. At
any given moment, every terminal is in one of the two binary
conditions low (0) or high (1)
There are seven basic logic gates:
 AND
 OR
 XOR
 NOT
 NAND
 NOR
 XNOR
A Spoofing attack is a situation in which one person or
program successfully represents oneself as another by
falsifying data and thereby gaining an illegitimate advantage.
The Open Systems Interconnection model (OSI) is a
conceptual model that characterizes and standardizes the
internal functions of a communication system by partitioning
it into abstraction layers. The model is a product of the Open
Systems Interconnection project at the International
Organization for Standardization (ISO).
Seven layers of OSI Model are:
 Application Layer
 Presentation Layer
 Session Layer
 Transport Layer
 Network Layer
 Data link Layer
 Physical Layer
Network topology is the arrangement of the various
elements (links, nodes, etc.) of a computer network. There
are two basic categories of network topologies:
 Physical topologies and Logical topologies.
Physical topology is the placement of the various
components of a network, including device location and
cable installation, while Logical topology illustrates how
data flows within a network, regardless of its physical
design. Various types of topologies are:
 Bus Topology
 Star Topology
 Ring Topology
 Mesh Topology
 Tree Topology
Hybrid topology use a combination of any two or more
topologies in such a way that the resulting network does not
exhibit one of the standard topologies.
LOGIC GATES
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DATABASE MANAGEMENT SYSTEM
 DBMS is the acronym of Data Base Management System.
DBMS is a collection of interrelated data and a set of
programs to access this data in a convenient and
efficient way. It controls the organization, storage,
retrieval, security and integrity of data in a database.
 Architecture of DBMS-The generalized architecture of
DBMS is called ANSI/ SPARC model. The architecture is
divided into three levels:
 External view or user view/View Level- It is the
highest level of data abstraction. This includes only
those portions of database of concern to a user or
Application program. Each user has a different external
view and it is described by means of a scheme called
external schema.
 Conceptual view/Logical Level- All the database
entities and the relationship among them are included.
One conceptual view represents the entire database
called conceptual schema.
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
Internal view/Physical Level- It is the lowest level of
abstraction, closest to the physical storage method. It
describes how the data is stored, what is the structure of
data storage and the method of accessing these data. It is
represented by internal schema.
 Data model: A data model is a plan for building a
database. The model represents data conceptually, the
way the user sees it, rather than how computers store it.
Data models focus on required data elements and
associations.
 Entity – Relationship Model
 Relational Model
 Entity: A thing (animate or inanimate) of independent
physical or conceptual existence and distinguishable. In
the University database context, an individual student,
faculty member, a class room, are entities.
 Attributes
Each entity is described by a set of attributes/properties.
Types of Attributes
TFTP
SFTP
SMTP
HTTP
HTTPS
UDP
ARP
Tel Net
POP3
BGP
P2P
PPP
IP
SNMP
NTP
SIP
DHCP
IMAP4
RARP
SSH
MIME
SMIME
ALGOL
ANSI
ATM
AS
BASIC
BIOS
BPS
DNS
EDI
URL
GIF
ASCII





Simple Attributes: having atomic or indivisible values:
a string of Phone Number – an eight digit number.
Composite Attributes: having several components in
the value. Example: Qualification with components
(Degree Name, Year, University Name)
Derived Attributes: Attribute value is dependent on
some other attribute. Example: Age depends on Date of
Birth. So age is a derived attribute.
Single-valued: having only one value rather than a set
of values. For instance, Place of Birth-single string
value.
Multi-valued: having a set of values rather than a
single value, for instance, Courses Enrolled attribute for
student Email Address attribute for student Previous
Degree attribute for student. Attributes can be: simple
single-valued, simple multi-valued, composite singlevalued or composite multi-valued.
FULL FORMS & ABBREVIATIONS
TCP
FTP
Transmission Control Protocol
File Transfer Protocol
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ASP
BCC
CC
CAD
CDMA
GSM
CMOS
CMYK
GPS
GUI
HDMI
GIGO
LIFO
FIFO
PING
HDD
NIC
HDTV
ISP
JPEG
|
Trivial File Transfer Protocol
Secure File Transfer Protocol
Simple Mail Transfer Protocol
Hyper Text Transfer Protocol
Hyper Text Transfer Protocol Secure
User Datagram Protocol
Address Resolution Protocol
Telecommunication Networking
Post Office Protocol Version3
Border Gateway Protocol
Point to Point Protocol
Peer to Peer Protocol
Internet Protocol
Simple Network Management Protocol
Network Time Protocol
Session Initiation Protocol
Dynamic Host Configuration Protocol
Internet Message Access Protocol Version 4
Reverse Address Resolution Protocol
Secure Shell
Multipurpose Internet Mail Extension
Secure MIME
Algorithmic Language
American National Standard Institute
Asynchronous Transfer Mode
Autonomous System
Beginners All Purpose Symbolic Instruction
Code
Basic input Output System
bit Per Second
Domain Name Server
Electronic Data Interchange
Uniform Resource Locator
Graphics Interchange Format
American Standard Code for Information
Interchange
Active Server Pages
Blind Carbon Copy
Carbon copy
Computer Aided Design
Code Division Multiple Access
Global System for Mobile Communication
Complementary
Metal
Oxide
SemiConductor
Cyan Magenta Yellow Block
Global Positioning System
Graphical User Interface
High Definition Multimedia Interface
Garbage in Garbage Out
Last In First Out
First In First Out
Packet Internet Gopher
Hard Disc Drive
Network Interface Controller/Cord
High Definition Television
Internet Service Provider
Joint Picture Expert Group
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
LCD
LED
TFT
CRT
MIDI
MPEG
PDA
PDF
ARPANET
SQL
USB
VIRUS
VOIP
IVR
WIFI
WIMAX
ADSL
API
ARP
RARP
ICANN
DPI
DSL
FAT
MANET
MIPS
BIPS
TIPS
NAT
IEEE
IMAP
ISDN
ISO
DHTML
MAC
CAN
PAN
SAN
CNM
IPV4
IPV6
DBMS
MODEM
RAM
ROM
SMPS
OMR
OCR
BCR
MICR
PCB
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Liquid Crystal Display
Light Emitting Diode
Thin Film Transistor
Cathode Ray Tube
Musical Instrument Digital Interface
Moving Picture Expert Group
Personal Digital Assistants
Portable Document Format
Advanced Research Projects Agency
Network
Structured Query Language
Universal Serial Bus
Vital Information Resource Under Siege
Voice Over Internet Protocol
Interactive Voice Response
Wireless fidelity
Worldwide Interoperability for Microwave
Access
Asymmetric Digital Subscriber Line
Application Program Interface
Address Resolution Protocol
Reverse ARP
Internet Corporation of Assign Names &
Numbers
Dots Per Inch
Digital Subscriber Line
File Allocation Table
Mobile Ad-Hoc Network
Million Instruction Per Second
Billion Instruction Per Second
Trillion Instruction Per Second
Network Address Translation
Institute of Electrical and Electronic
Engineer
Internet Message Access Protocol
Integrated Servers Digital Network
International
Standard
Organization/
International Org for Standardization
Dynamic Hyper Text Markup Language
Media Access Control
Campus Area Network
Personal Area Network
Storage Area Network
Circulatory Network Mode
Internet Protocol Version 4
Internet Protocol Version 6
Data Base Management System
Modulator Demodulator
Random Access Memory
Read Only Memory
Switch Mode Power Supply
Optical Mark Reader / Recognition
Optical Character Reader / Recognition
Bar Code Reader
Magnetic Ink Character Reader /
Recognition
Printer Circuit Board
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SRAM
DRAM
PROM
EPROM
EEPROM
HDD
FDD
CD
DVD
BRD
HVD
ACID
WYSIWYG
Static RAM
Dynamic RAM
Programmable ROM
Electrically PROM
Electrically Erasable PROM
Hard Disc Drive
Floppy Disc Drive
Compact Disc
Digital Video/Versatile Disc
Blu Ray Disc
Holographic Versatile Disc
Atomicity Consistency Isolation Durability
What you see is what you get
GLOSSARY
A

Access time - The amount of time it takes for requested
information to be delivered from disks and memory.
Antivirus software - A program designed to look for
and destroy viruses that may infect the memory of a
computer or files stored on a computer.
Artificial intelligence (AI) - Computer systems that
attempt to imitate human processes for analyzing and
solving problems.
Accumulator - A local storage area called a Register, in
which the result of an arithmetic or logic operation is
formed.



B

BIT - It is basic unit of computers. It has two values 1 & 0
only.
BYTE - Combination of 8 Bits.
Basic Input Output System (BIOS) - Also known as
ROM BIOS. It provides an abstraction layer for the
hardware, i.e., a consistent way for application programs
and operating system to interact with input/output
devices.
Bug - A software bug is an error, flaw, failure, or fault in
a computer program or system produces an incorrect or
unexpected result.
Bus - A pathway along which electronic signals travel
between the components of a computer system.




C

Cookie - A packet of information that travels between a
browser and the web server.
Crash - Your computer or application no longer works
correctly and so you “loose” all the work you’ve done
since the last time you saved.
Command - An instruction that causes a program or
computer to perform a function.
Cache - It is a memory storage area that keeps frequent
use data readily available to the computer so that the
computer does not retrieve them from slow storage
devices.



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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016


D





E


F




G






Clock Speed - The speed of computer is measured in
clock speed. High clock speed is synonymous with high
processing capability. It is measured in Megahertz
(MHz).
Column - A vertical block of cells in a table or
spreadsheet.

Hard copy - Text or graphics printed on paper; also
called a printout.
Hard disk - A rigid type of magnetic medium that can
store large amounts of information.
Hyperlink - An image or portion of text on a webpage
which is linked to another webpage.
Hub - A network device that connects multiple
computers on a LAN so that they can communicate with
another network and the internet.
Header - Repetitive information that appears at the top
(the head) of every page of a document.
Hypertext transfer protocol (HTTP) - The protocol
used on the World Wide Web that permits Web clients
(Web browsers) to communicate with Web servers



Delete - To remove an item of data from a file or to
remove a file from the disk.
Debugging - Locating and eliminating defects in a
program.
Desktop - The electronic work area on a display screen.
Dots Per Inch (DPI) - It is defined as the measure of the
resolution of a printer and scanner, or monitor.
Domain Name - A unique name that identifies a
particular website and represents the name of the server
where the web pages reside.
Edit - To make certain changes in existing data.
Ethernet Card - A network adapter that enables a
computer to connect to an Ethernet.


I

Icons - In a graphical user interface (GUI), a small,
pictorial, on screen representation of an object, such as a
document, program, folder or disk drive.
Instant messaging (IM) - A chat program that lets
people communicate over the Internet in real time.
Internet protocol (IP) address - A unique set of
numbers that identifies a computer over a network.
Internet service provider (ISP) - An organization that
provides access to the Internet for a fee.



Fax - A shortened form of the word facsimile. A copy of a
document transmitted electronically from one machine
to another.
File transfer protocol (FTP) - A set of guidelines or
standards that establish the format in which files can be
transmitted from one computer to another.
Firewall - A security system usually consisting of
hardware and software that prevents unauthorized
persons from accessing certain parts of a program,
database, or network.
Flash Memory - It is a type of non-volatile computer
storage chip that can be electrically erased and
reprogrammed. It was developed by EEPROM.
Gateway - A machine that links two networks using
different protocols.
Gigabyte - A measurement of the storage capacity of a
device. One gigabyte represents 1024 megabytes.
Google – search engine on the web.
Gopher - A protocol used for locating and transferring
information on the internet. It is an internet search tool
that allows users to access textual information.
GUI - Graphical User Interface uses icons and menus to
carry out commands such as opening files, delete files,
move files etc..
Graphic Interchange Format (GIF) - A simple file
format for pictures and photographs that are
compressed so that they can be sent quickly.

Intranet - A private network established by an
organization for the exclusive use of its employees.
Firewalls prevent outsiders from gaining access to an
organization’s intranet
J

JPEG - Joint Photographic Experts Group. A format for
storing complex graphics in compressed form.
Justification - Aligning lines of text at the left margin,
the right margin, both margins, and the centre. Text
aligned at both margins is considered fully justified.

K

Keyboard - The device used to enter information into a
computer.
Kilobyte - A measurement of the storage capacity of a
device. One kilobyte represents 1024 bytes.

L

LAN - A local area network (LAN) is a computer network
that interconnects computers within a limited area such
as a home, school, computer laboratory, or office
building, using network media.
Laptop computer - A portable computer. Also known as
a notebook computer.
Landscape Orientation – The positioning of the page so
that the information is printed across the long
dimension of the page.


H
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016

Liveware - It is a term to describe the human system,
opposed to hardware or software in a computer.
M
 Macro virus - A type of virus that attaches itself to
documents or word processing templates.
 Malware - Software that disrupts normal computer
functions or sends a user’s personal data without the
user’s authorization.
 Memory - The part of a computer that stores
information.
 Memory Cell - A circuit in memory that represents a
single bit of information.
 Mass Storage - Storage systems that provide access to
hundreds of billions of bytes of stored data. They are
often referred to as Archival Storage because of the very
large volumes of historical or backup data they can store.
 MIPS - An acronym derived from millions of instructions
per second. Used to measure the speed of a processor.
 Morphing - The transformation of one image into
another image.
 Mobile Commerce (m-Commerce) - A form of ecommerce that has the ability to conduct monetary
transactions via a mobile device such as a cell phone.
 Mozilla - a web browser and successor to Netscape
Communicator.
 Multitasking - The ability of a computer to execute
more than one program at a time.
N
 NIBBLE - Combination of four bits.
 Network - A system of interconnected computers.
They are of three types i. e. LAN, MAN, WAN.
 Network Interface Card (NIC) - This is a part of the
computer that allows it to talk to other computers via a
network protocol like TCP/IP.
 Node - A computer which is attached to the network.
Each node has its own address on the network so that it
can be uniquely identified and can communicate with
other nodes on the same or different network.
O
 Offline - Refers to the state in which a computer is
temporarily or permanently unable to communicate
with another computer.
 Online - Refers to the state in which a computer is ready
to communicate with other computers.
 Open source software - Software that makes the
underlying source code available to all users at no
charge.
 Operating system (OS) - Software that manages the
internal functions and controls the operations of a
computer.
P
 Palmtop computer - A portable computer smaller than
a notebook (or laptop) computer that fits on the palm of
your hand. Also called a handheld computer.
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
Password - A user’s secret identification code, required
to access stored material. A procedure intended to
prevent information from being accessed by
unauthorized persons.
Piracy - The illegal copying of software or other creative
works.
Peripherals - A connectable device that has an auxiliary
function outside the permanent system configuration
such as plotters, printers and graphic displays.
Phishing - A type of computer fraud that tries to trick
users into revealing their passwords and other
confidential information.
Pixel - A smallest picture element of a digital image. The
smaller the pixels, the higher the resolution.
Port - An electrical connection on the computer into
which a cable can be plugged so that the computer can
communicate with other devices such as printer or
modem.
Protocol - A set of rules and regulations that
coordinates the exchange of information over the
network.
Portrait orientation - Positioning paper so that
information is printed across the short dimension of the
paper.







Q

Query - An alternate pipe form of operating system,
which handles data in the form of messages rather than
bytes.
Qwerty - It is one of the standard computer keyboard,
with the character Q, W, E, R, T, Y on the top row of
letters on the keyboard.

R

Response time - The time a computer takes to execute a
command.
Retrieve - To call up information from memory or
storage so that it can be processed in some way.
Record - A collection of all the information pertaining to
a particular subject.
Row - A horizontal block of cells in a table or
spreadsheet.
Resolution - Measurement of the degree of sharpness of
a displayed image. It is defined as number of pixels per
square inch on a computer generated display.
Register - A temporary storage unit for quick, direct
accessibility of a small amount of data for processing.





S

Save As – Give the file a name and/or store the file in a
certain place.
Save - Tell the computer to create a file on disk that has
the information you’ve put into the document.
Scroll bar - Allows you to move around through your
document.
Shut down - To quit all applications and turn off the
computer.



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








T






U



V

Spam - unwanted repetitious messages, such as
unsolicited bulk e-mail.
Scanner - An input device that can copy a printed page
into a computer’s memory, thus doing away with the
need to type the copy.
Screen saver - A program that changes the screen
display while the user is away from the computer.
Server - A computer that manages a shared resource
and provides a set of shared user services to the clients.
Search Engine - Software that searches, gathers and
identifies information from a database based on an
index, keywords or titles.
Spam - Unwanted repetitious messages, such as
unsolicited bulk e-mail.
Soft copy - Information shown on the display screen.
Sort - To arrange fields, records, or files in a
predetermined sequence.
Surfing the Net - Browsing through various Web sites
on the Internet in search of interesting things.
Trash - Place where you put files and folders that you
want to delete or get rid of.
Topology - The structure of the network, including
physical connections such as wiring schemes and logical
interactions between network devices.
Track - A ring on a disk where data can be written.
Telnet - A protocol for remote computing on the
internet that allows a computer to act as a remote
terminal on another machine, anywhere on the internet.
Touchpad - The device on a laptop computer that takes
the place of a mouse.
Touch screen technology - The technology that permits
a user to perform a function simply by touching the
screen on an appropriate spot.
Uninterrupted Power Supply (UPS) - A Battery
powered backup system that provides enough electricity
to a computer during a power outage so that a user can
save files before shutting down the computer.
Universal Serial Bus (USB) - A common standard for
connecting multiple peripherals to a computer as
needed.
Upload - To transfer information from a client computer
to a host computer.
Virus - A piece of computer code designed as a prank or
malicious act to spread from one computer to another by
attaching itself to other programs.
W
 WAP - Wireless Application Protocol is a specification
for a set of communication protocol used to allow
wireless devices to access the internet and other
utilities.
 Web browser - Software that permits a user with a click
of a mouse to locate, display, and download text, video,
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audio, and graphics stored in a host computer on the
Web.
The most common Web browsers now in use are
Internet Explorer, Google Chrome and Mozilla Firefox.
Web site - One or more related pages created by an
individual or an organization and posted on the World
Wide Web.
Wi-Fi (Wireless fidelity) - A process that permits highspeed wireless transmission of data.
Word processing - The electronic process of creating,
formatting, editing, proofreading, and printing
documents.
Workstation - A desktop computer that runs
applications and serves as an access point in a local area
network.




Z

Zombie - A computer that has been hijacked by a
cracker without the owner’s knowledge and used to
perform malicious tasks on the Internet.
MICROSOFT OFFICE
 Microsoft Office is an office suite of desktop
applications, servers and services for the Microsoft
Windows and OS X operating systems. It was first
announced by Bill Gates of Microsoft on August 1, 1988
at COMDEX in Las Vegas.
 MS office primarily includes Word, Excel, PowerPoint,
Access and Outlook. It also includes OneNote, Groove,
InfoPath and Publisher.
MS WORD
 Microsoft Word is a word processor developed by
Microsoft.
 It is used for creating, editing, formatting, storing,
retrieving and printing of a text document.
 Microsoft Word's native file formats are denoted either
by a .doc or .docx file extension.
 A Cursor is an indicator used to show the position on a
computer monitor or other display device that will
respond to input from a text input or pointing device.
Basic Keys (Common Tasks)
Ctrl + N
Create a new document
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
Ctrl + B
Ctrl + I
Ctrl + U
Ctrl + Shift+ <
Ctrl + Shift + >
Ctrl + [
Ctrl + ]
Ctrl+ Spacebar
Ctrl + C
Ctrl + X
Ctrl + V
Ctrl + Alt + V
Alt+ Ctrl + S
Ctrl + Z
Ctrl + Y
Make letters bold
Make letters italic
Make letters underline
Decrease font size one value
Increase the font size one value
Decrease the font size by 1 point
Increase the font size by 1 point
Remove paragraph or character
formatting.
Copy the selected text or object
Cut the selected text or object
Paste text or an object
Paste special
Split the document Window
Undo the last action
Redo the last action
 To create a document, we use New command at the
menu.
 Save as is used to save a document for the first time. It is
also used to change the destination of the saved file in
the computer.
 Print Preview is used to see the document before the
printout is taken.
 Cut and Paste options are used to move the data from
one part of the document to another.
Control Keys + Function keys
Ctrl+F2
Ctrl+F3
Choose the print preview command
(Microsoft office Button)
Cut on the spike
Ctrl+F4
Close the window
Ctrl+F6
Go to the next window
Ctrl+F9
Insert an empty field
Ctrl+F10
Maximise the document window
Ctrl+F11
Lock a field
Ctrl+F12
Choose
the
Open
(Microsoft Office Button)
command
 Portrait and Landscape options are available in
Orientation category of Page Setup.
 Alignment refers to the position of text between the
margins.
 Auto complete is a feature in word that
automatically completes the spelling of days of the
week and months of the year that have more than
five letters in their names.
F7
F8
F9
F10
F11
F12






Choose the spelling command (Review tab)
Extend a selection
Update the selected fields
Show key tips
Go to the nest field
Choose the Save As command (Microsoft
Office Button).
Header and Footer option is used to display
information such as title and page number of the
document.
The bar at the top of the window that bears the name of
the window, is known as Title Bar.
A screen element of MS Word that is usually located
below the title bar that provides categorized options, is
called Menu Bar.
Auto Correct in word automatically corrects certain
spelling, typing, capitalisation or grammar errors.
Thesaurus is used for finding a synonym for a word in
the document.
Word has extensive lists of bullets and numbering
features used for tables, lists, pages, chapters, headers,
footnotes, and tables of content.
MS EXCEL
 Microsoft Excel is a spreadsheet application developed
by Microsoft for Microsoft Windows and Mac OS.
 It features calculation, graphing tools, pivot tables, and
a macro programming language called Visual Basic for
Applications.
 The intersection of a row and column is called a Cell.
 The cell in which we are currently working is known as
Active Cell.
 Microsoft Excel's native file formats are denoted either
by a .xls or .xlsx file extension.
 A Worksheet is made of columns and rows, wherein
columns run Vertically and rows run Horizontally.
 Up to Excel 2003, the standard amount of columns has
been 256 and 65,536 rows.
 Excel 2007 onwards, the maximum number of rows per
worksheet increased to 1,048,576 and the number of
columns increased to 16,384.
 Microsoft Excel has the basic features of all
spreadsheets, using a grid of cells arranged in
numbered rows and letter-named columns to organize
data manipulations like arithmetic operations
 The letter and number of the intersecting column and
row is the Cell Address.
 Short cut key to insert a new worksheet in MS-Excel is
ALT + Shift + F1 + or F11.
 Sheet tab is the tab at the bottom of the worksheet
window that displays the name of the worksheet.
 A Microsoft office document that contains one or more
worksheets is known as a Workbook.
Function Keys
F1
Get help or visit Microsoft office Online.
F2
Move text or graphic.
F4
Repeat the last action
F5
Choose the Go To command (Home tab).
Shortcut Keys of MS-Excel
F6
Go to the nest pane or frame.
Key
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
F2
F5
F7
F11
Ctrl + Shift + ;
Ctrl + ;
Shift + F3
Shift + F5
Ctrl + A
Ctrl + B
Ctrl + I
Ctrl + U
Ctrl + P
Ctrl + Z
Ctrl + F9
Ctrl + F10
Ctrl + F6
Ctrl + page up
Ctrl + Page
Down
Ctrl + Tab
Alt + =
Ctrl + ’
Ctrl + Arrow
key
Ctrl + Space
Shift + Space
Edit the selected cell
Go to a specific cell
Spell check selected text and/or
document
Create chart
Enter the current time
Enter the current date
Open the Excel insert function window
Bring up Find and Replace box.
Select all contents of the worksheet
Bold highlighted selection
Italic highlighted selection
Underline highlighted selection
Bring up the print dialog box to begin
printing
Undo last action
Minimise current workbook
Maximise currently selected workbook
Switch
between
open
workbooks/window
Move between Excel worksheet in the
same Excel document.
Move between Excel worksheets in the
same Excel document
Move between two or more open Excel
files
Create a formula to sum all of the above
cells
Insert the value of the above cell
into cell currently selected.
Move to next section to text
C) It indicates whether Extended Selection mode is
turned on or off
D) None of above
What is the maximum number of lines you can set
for a drop cap?
A) 3
B) 10
C) 15
D) 20
What is the default number of lines to drop for drop
cap?
A) 3
B) 10
C) 15
D) 20
What is the shortcut key you can press to create a
copyright symbol?
A) Alt+Ctrl+C
B) Alt + C
C) Ctrl + C
D) Ctrl + Shift + C
How many columns can you insert in a word
document in maximum?
A) 35
B)63
C) 55
D) 65
What is the smallest and largest font size available in
Font Size tool on formatting toolbar?
A) 8 and 72
B) 8 and 64
C) 12 and 72
D) None of above
What is the maximum font size you can apply for any
character?
A) 163
B) 1638
C) 16038
D) None of above
Which of the following is graphics solution for Word
Processors?
A) Clipart
B) WordArt
C) Drop Cap
D) All of above
The keystrokes Ctrl + I is used to
A) Increase font size
B) Inserts a line break
C) Indicate the text should be bold
D) Applies italic format to selected text
5.
6.
7.
8.
9.
10.
11.
12.
Select entire column
Select entire row
Important Questions Based on Microsoft Word:
1. Pressing F8 key for three times selects
A) A word
B) A sentence
C) A paragraph
D) Entire document
2. What happens if you press Ctrl + Shift + F8?
A) It activates extended selection
B) It activates the rectangular selection
C) It selects the paragraph on which the insertion line is.
D) None of above
3. How can you disable extended selection mode?
A) Press F8 again to disable
B) Press Del to disable
C) Press Esc to disable
D) Press Enter to disable
4. What does EXT indicator on status bar of MS Word
indicate?
A) It indicates whether the external text is pasted on
document or not
B) It indicates whether extended add-ons are installed
on MS Word or not
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13. A character that is raised and smaller above the
baseline is known as
A) Outlined
B) Raised
C) Superscript
D) Subscript
14. What is the purpose of inserting header and footer
in document?
A) To enhance the overall appearance of the document
B) To mark the starting and ending of page
C) To make large document more readable
D) To allow page headers and footers appear on
document when printed
15. Which of the following function key activates the
speller?
A) F5
B) F7
C) F9
D) Shift + F7
16. The minimum number of rows and columns in MS
Word document is
A) 1 and 1
B) 2 and 1
C) 2 and 2
D) None of above
17. Thesaurus tool in MS Word is used for
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
A) Spelling suggestions
B) Grammar options
C) Synonyms and Antonyms words
D) All of above
Why Drop Caps are used in document?
A) To drop all the capital letters
B) To automatically begin each paragraph with capital
letter
C) To begin a paragraph with a large dropped initial
capital letter
D) None of above
A bookmark is an item or location in document that
you identify as a name for future reference. Which of
the following task is accomplished by using
bookmarks?
A) To add anchors in web page
B) To mark the ending of a paragraph of document
C) To quickly jump to specific location in document
D) To add hyperlinks in webpage
A word processor would most likely be used to do
A) Keep an account of money spent
B) Do a computer search in media center
C) Maintain an inventory
D) Type a biography
Which of the following is not valid version of MS
Office?
A) Office XP
B) Office Vista
C) Office 2007
D) None of above
You cannot close MS Word application by
A) Choosing File menu then Exit submenu
B) Press Alt+F4
C) Click X button on title bar
D) From File menu choose Close submenu
The key F12 opens a
A) Save As dialog box
B) Open dialog box
C) Save dialog box D) Close dialog box
What is the short cut key to open the Open dialog
box?
A) F12
B) Shift F12
C) Alt + F12
D) Ctrl + F12
A feature of MS Word that saves the document
automatically after certain interval is available on
A) Save tab on Options dialog box
B) Save As dialog box
C) Both of above
D) None of above
Where can you find the horizontal split bar on MS
Word screen?
A) On the left of horizontal scroll bar
B) On the right of horizontal scroll bar
C) On the top of vertical scroll bar
D) On the bottom of vertical scroll bar
Which of the following is not available on the Ruler
of MS Word screen?
A) Tab stop box
B) Left Indent
C) Right Indent
D) Center Indent
What is place to the left of horizontal scroll bar?
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A) Tab stop buttons
B) View buttons
C) Split buttons
D) Indicators
Which file starts MS Word?
A) Winword.exe
B) Word.exe
C) Msword.exe
D) Word2003.exe
How many ways you can save a document?
A) 3
B) 4
C) 5
D) 6
If you want to keep track of different editions of a
document which features will you use?
A) Editions
B) Versions
C) Track Change
D) All of above
Background color or effects applied on a document
is not visible in
A) Web layout view
B) Print Layout view
C) Reading View
D) Print Preview
What is a portion of a document in which you set
certain page formatting options?
A) Page
B) Document
C) Section
D) Page Setup
Borders can be applied to
A) Cells
B) Paragraph
C) Text
D) All of above
Which of the following is not a type of page margin?
A) Left
B) Right
C) Center
D) Top
What is the default left margin in Word 2003
document?
A) 1"
B) 1.25"
C) 1.5"
D) 2"
What is gutter margin?
A) Margin that is added to the left margin when printing
B) Margin that is added to right margin when printing
C) Margin that is added to the binding side of page
when printing
D) Margin that is added to the outside of the page when
printing
29.
30.
31.
32.
33.
34.
35.
36.
37.
38. Portrait and Landscape are
A) Page Orientation
B) Paper Size
C) Page Layout
D) All of above
39. If you need to change the typeface of a document,
which Tab will you choose?
A) References
B) View
C) Format
D) Insert
40. Which of the following is not a font style?
A) Bold
B) Italics
C) Regular
D) Superscript
41. What happens when you click on Insert >> Clip Art
A) It inserts a clipart picture into document
B) It lets you choose clipart to insert into document
C) It opens Clip Art taskbar
D) None of above
42. Which option is not available in Insert Table Auto fit
behavior?
A) Fixed Column Width
B) AutoFit to Contents
C) Autofit to Window
D) Autofit to Column
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
43. To autofit the width of column
A) Double click the right border of column
B) Double click the left border of column
C) Double click the column header
D) All of above
44. From which menu you can insert Header and Footer?
A) Insert Menu
B) View Menu
C) Format menu
D) Tools Menu
45. After typing header text, how can you quickly enter
footer text?
A) Press Page Down key and type the text for footer
B) Click on Switch between Header & Footer then
type the text
C) Both of above
D) None of above
46. When inserting Page number in footer it appeared 1
but you wish to show ‘a.’ How can you do that?
A) From format menu choose bullets and Numbering
and configure necessary setting
B) From Insert menu choose Page Number and specify
necessary setting
C) Click on Page Number Format tool and specify
required setting
D) All of above
47. Which of the following statement is false?
A) You can set different header footer for even and odd
pages
B) You can set different page number formats for
different sections
C) You can set different header footer for first page of a
section
D) You can set different header and footer for last
page of a section
48. Where can you change the vertical alignment?
A) Formatting toolbar
B) Paragraph dialog box
C) Page Setup dialog box D) Standard toolbar
49. To get to the ‘Symbol’ dialog box, click on the ______
menu and choose ‘Symbol’.
A) Insert
B) Format
C) Tools
D) Table
50. Which of the following symbol sets would be most
likely to contain a mathematical symbol such as a
degree sign, greater than or equal to, or a Greek
letter?
A) Wingdings
B) Wingdings 3
C) Webdings
D) Symbol
51. When assigning a shortcut key to a symbol, you
should always try to select a key or key combination
that is:
A) Unassigned
B) Located on the ten-key pad section of your keyboard.
C) Assigned to another task.
D) From the same font family as the symbol.
52. Suppose you wanted to create an AutoCorrect entry
that would type the words ‘We regret to inform you
that your submission has been declined’ of the
following choices, which would be the best name you
could assign to this entry?
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A) Regret
B) Subdual
C) We regret to inform you that your submission has
been declined
D) 11
If you want to convert a symbol or several lines of
text into an AutoCorrect entry, you should:
A) Insert the symbol or type the text in a Word
document first. Then, select the text or symbol and
go to the AutoCorrect dialog box.
B) Click the Tools menu and choose AutoCorrect
Options. Then, click the Insert menu and choose Symbol
(or click the Format menu and choose Paragraph) to add
the symbol or paragraph to AutoCorrect.
C) AutoCorrect can only accommodate one line of text. It
is not possible to convert a symbol or multiple lines of
text into an AutoCorrect entry.
D) Insert the symbol or type the text in a Word
document first. Then, select the text or symbol and click
the Edit menu followed by Paste Special. Select New
AutoCorrect Entry and then click OK.
AutoCorrect was originally designed to replace
_________ words as you type.
A) Short, repetitive
B) Grammatically incorrect
C) Misspelled words
D) None of the above
Which of the following is the second step in creating
a macro?
A) Start recording
B) Using your mouse or keyboard, perform the task you
want to automate
C) Assign a keyboard shortcut to the macro
D) Give the macro a name
If you will be displaying or printing your document
on another computer, you’ll want to make sure and
select the _____________ option under the ‘Save’ tab.
A) Embed Fonts
B)Embed True Type
Fonts
C) Save True Type Fonts
D) Save Fonts
In Word, the mailing list is known as the ____________.
A) Data sheet
B) Source
C) Data source
D) Sheet
53.
54.
55.
56.
57.
58. Which of the following is not one of the three ‘Mail
Merge Helper’ steps?
A) Merge the two files
B) Create the main document
C) Set the mailing list parameters
D) Create the data source
59. Which of the following button will allow you to add,
delete, or change records in your Data Source?
A) ‘Data Source’ button
B) ‘Edit’ button
C) ‘Edit Data Source’ button
D) ‘Data editing’ button
60. It is possible to _______ a data source before
performing a merge.
A) Create
B) Modify
C) Sort
D) all of the above
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
61. What is the default font size of a new Word
A) By pressing Ctrl + ]
B) By pressing Ctrl + [
document based on Normal template?
C) By pressing Ctrl + }
D) By pressing Ctrl + {
A) 10 pt
B) 12 pt
72. Which of the following line spacing is invalid?
C) 14 pt
D) None of above
A) Single
B) Double
62. What is the default font used in MS Word document?
C) Triple
D) Multiple
A) Times New Roman
B) Arial
73. How can you apply exactly the same formatting you
C) Algerian
D) Preeti
did to another text?
63. Which tab in Font dialog box contains options to
A) Copy the text and paste in new location. Then type the
apply font effects?
new text again.
A) Font tab
B) Character Spacing
B) Copy the text and click on Paste Special tool on new
C) Text Effects
D) Standard Toolbar
place
64. If you need to double underline a word, how will you
C) Select the text then click on Format Painter and
do that?
select the new text
A) Go to Format menu and then Font option. Open
D) All of above
Underline Style and choose Double Underline
74. What should you do if you require pasting the same
B) From Format menu choose Font option and then from
format in many places?
Font tab open Underline Style and select Double
A) Click the Format painter and go on pasting in many
Underline
places holding Alt Key
C) Select the text then choose Format >> Font and on
B) Double click the format painter then go on pasting
Font tab open Underline Style and choose Double
in many places
Underline
C) Click the format painter then go on pasting to many
D) Click double underline tool on formatting toolbar
places holding Ctrl Key
65. Drop Cap means
D) All of above
A) All Caps
B) Small Caps
75. On which toolbar can you find Format Painter tool?
C) Title case
D) None of the above
A) Standard toolbar
B)Formatting toolbar
66. What is the short cut key to open Font dialog box?
C) Drawing Toolbar
D) Picture Toolbar
A) Ctrl + F
B) Alt + Ctrl + F
76. Which indent marker controls all the lines except
C) Ctrl + D
D) Ctrl + Shift + D
first line?
67. How can you access the font size tool on font dialog
A) First Line Indent Marker
box?
B) Left Indent Marker
A) Ctrl + S
B) Ctrl + Shift + S
C) Hanging Indent Marker
C) Ctrl + P
D) Ctrl + Shift + P
D) Right Indent Marker
68. How can you make the selected character
77. How can you remove tab stop markers from ruler?
superscripted?
A) Double click the tab marker and choose Clear All
A) Ctrl + =
B) Ctrl + Shift + =
B) Drag the tab stop marker out of the ruler
C) Alt + Ctrl + Shift + =
D) None of above
C) Right click the tab stop marker and choose remove
69. What does Ctrl + = key effect?
D) All of above
A) Superscript
B) Subscript
78. Which operation you will perform if you need to
C) All Caps
D) Shadow
move a block of text?
70. What happens if you mark on Hidden check box of
A) Copy and Paste
B) Cut and Paste
Font dialog box after you select some text?
C) Paste and Delete
D) Paste and Cut
A) The text is deleted from document and you need to
79. What is the extension of Word files?
bring from Recycle Bin if required again.
A) FIL
B) DOT
B) The text is hidden and you need to bring it by
C) DOC
D) TXT
removing the check box if needed again
80. Which of the following option is not available in
C) The text is deleted and cannot be returned back
Insert >> Illustrations?
D) The text is hidden and cannot be returned back
A) Chart
B) Word Art
71. How can you increase the font size of selected text by
C) Clip Art
D) Graph
one point every time?
COMPUTER MISCELLANEOUS QUESTIONS
1. What does ASCII stand for?
(a) American Standard Code for Information Intelligence
(b) American Standard Code for Income Interchange
(c)American Standard Code for Information
Interchange
(d) American States Code for Intelligence Interchange
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(e) None of the above
2. Which of the following is a binary number?
(a) 10101000
(b) 245
(c) 200
(d) 02
3G stands for
(a) Third Generation
(b) Trillion Gigabyte
(c) Tenth Girdle
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
(d) Triple Generation
(e) Third Game
3. Which of the following terms is related to Internet
connectivity?
(a) IP
(b) TCP
(c) Gopher
(d) Both (a) and (b) (e) All of the above
4. Which of the following is related to Internet?
(a) WWW
(b) CPU
(c) RAM
(d) Bus
(e) Port
5. Which of the following is known as the Brain of
Computer?
(a) CPU
(b) RAM
(c) DVD
(d) ROM
(e) Control Panel
6. Which of the following correctly explains Monitor?
(a) Electronic visual display
(b) Input Device
(c) Input around the desktop area
(d) Pixel based smart area
(e) Both (b) and (d)
7. PC stands for
(a) Personnel Computer
(b) Personalised Computer
(c) Personal Computer
(d) Personnel Computing
(e) Personalised Computing
8. Mainframe is related to
(a) Computer
(b) Super Computer
(c) Mini Computer
(d) Micro Computer
(e) None of these
9. Which of the following is known as the page?
(a) Windows page
(b) Start page
(c) Memory page
(d) Desktop page
(e) Document page
10. In which part of CPU is arithmetic calculation done?
(a) ALU
(b) CU
(c) Digital Signal Processor
(d) RISC
(e) Both 1 and 2
11. Which of the following is important for connecting more
than one system?
(a) Wire
(b) LAN
(c) Bluetooth
(d) Wi-Fi
(e) All of the above
12. Software for organizing, storage, updating and retrieving
information is a(n)—
(a) Data warehouse
(b) Database management system
(c) Data mining
(d) Operating system
(e) None of the above
13. Which of the following is essential for opening a
webpage?
(a) Browser
(b) Peripherals (c) Fast internet
(d) Program
(e) Mouse
14. What is the term for any device which is connected to
any computer system from outside?
(a) Peripheral
(b) RAM
(c) Memory
(d) Bus
(e) All of the above
15. Which of the following is not an output Device?
(a) Plotter
(b) Mouse
(c) Monitor
(d) Printer
(e) Headphone
16. A (n) _____ device is any hardware component that allows
you to enter data and instructions into a computer.
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(a) Output
(b) Terminal (c) Input
(d) Communications (e) Interaction
What does the acronym BIOS stand for?
(a) Basic Input / Output Systemization
(b) Basic Input / Output System
(c) Basic Internal Output System
(d) Basic Internal Output System
(e) Basic Input / Output System
In the OS, software and data that the computer is
currently using are stored in
(a) PC
(b) AGP
(c) Scanner
(d) RAM
(e) USB
Which of the following is a binary number?
(a) 12
(b) 34
(c) 45
(d) 10
(e) 13
The process of making changes to an existing document
is referred to as _______ it.
(a) Modifying
(b) Adjusting
(c) Changing
(d) Creating
(e) Editing
Which of the following refers to containers used to store
related documents located on the computer?
(a) Labels
(b) Indexes
(c) Programs
(d) Folders
(e) Sections
Which of the following refers to the means by which an
OS or any other programs interacts with the user?
(a) Program front-end
(b) Programming interface
(c) User login
(d) User interface
(e) User compatibility
The ______ format reduces an audio file to about onetenth of its original size while preserving much of the
original quality of the sound.
(a) DOC
(b) PNG
(c) GIF
(d) MP3
(e) VMEG
The ______ which contains billion of documents called
web pages is one of the more popular services on the
internet.
(a) Web server
(b) Telnet
(c) Web
(d) Collection
(e) News net
What type of device is a printer?
(a) Output device
(b) Input device
(c) Processing device
(d) Storage device
(e) None of these
Which of the following terms is associated with
Internet/Email?
(a) Plotter
(b) Slide presentation
(c) Bookmark
(d) Pie Chart
(e) Microsoft Excel
Which of the following is contained at the end of the file
name and helps to determine the type of file?
(a) File property
(b) The nomenclature
(c) The name
(d) File subname
(e) File extension
What is Linux?
(a) Input Device
(b) Operating system
(c) Storage Device (d) Output Device
(e) Processor
Which of the following is a small microprocessor-based
computer designed to be used by one person at a time?
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
(a) Netbook
(b) Notebook
(c) Supercomputer
(d) Personal computer
(e) All-in-one
Key-board and _______ are examples of input devices.
(a) Monitor
(b) Modem
(c) Printer
(d) Mouse
(e) CPU
Which among the following is the most prevalent
storage device for personal computer?
(a) Flash Drive
(b) USB personal computer
(c) Mainframe
(d) Laptop
(e) None of these
Website address is such a unique name which recognizes
a specific ______ on web.
(a) Web browser
(b) Website
(c) PDA
(d) Link
(e) None of these
A bit refers to ______.
(a) A from of storage
(b) A value equal to a kilobyte
(c) The same things as a pixel
(d) The smallest unit of digital information.
(e) A value equal to megabyte
Hard disk drives are considered ______ storage.
(a) Flash
(b) Non-volatile
(c) Temporary
(d) Non-permanent
(e) Worthless
In ______ back-up of any computer there is a copy of each
program, data and system file.
(a) Restoration
(b) Boot strap (c) Differential
(d) Full
(e) None of these
Which of the following terms is associated with
networks?
(a) Mouse
(b) Plotter
(c) MS Excel
(d) MS Word
(e) Connectivity
DVD is an example of
(a) Optical device (b) Output device
(c) Hard disk
(d) Solid state storage device
(e) None of these
What type of device is a computer monitor?
(a) Output
(b) Input
(c) Storage
(d) Processing
(e) Software
What is Window Explorer?
(a) Personal Computer
(b) Network
(c) File Manager
(d) Drive
(e) Web browser
Binary Number system is also called _______.
(a) Base-2 number system
(b) Base-1 number system
(c) Base-3 number system
(d) Base-8 number system
(e) Base-16 number system
30,000 bytes is equal to
(a) 30 KB
(b) 3 MB
(c) 3 GB
(d) 3 TB
(e) None of these
Terminal is a:
(a) device to give power supply to computer
(b) Point at which data enters or leaves the
computer
(c) The last instruction in a program
(d)any input /output device
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(e) None of these
43. Which part of a computer cannot be touched?
(a) Mouse
(b) Monitor
(c) Hardware
(d) Software
(e) None of these
44. Manipulation of data in computer is called
(a) Boot
(b) Processing (c) Simplification
(d) Format
(e) Clean disk
45. Which computer bus connects the main memory to the
memory controller in computer systems?
(a) Data Bus
(b) Memory Bus
(c) I/O Bus
(d) Both (b) and (c)
(e) None of these
46. _____ and _____ are the two types of computer memory.
(a) RAM and CPU
(b) ROM and CPU
(c) RAM and ROM (d) RAM and BIOS
(e) BIOS and ROM
47. What is the full from of CRT?
(a) Cathode Ray Tube
(b) Computer Resolution and Transparency
(c) Cathode Resolution and Transparency
(d) Computer RAM Trash
(e) None of these
48. Which among the following is not hardware?
(a) Motherboard
(b) Operating system
(c) CPU
(d) Keyboard
(e) Hard disk drive
49. Which of the following is software?
(a) Motherboard
(b) CPU
(c) Microsoft Windows
(d) RAM
(e) All of these
50. In computing, a _____ is a directive to a computer
program order to perform a specific task.
(a) Hard boot
(b) Hibernation
(c) Command
(d) Warm boot (e) Format
51. Which of the following is/are modifier keys in a
computer?
(a) Ctrl
(b) Alt
(c) Shift
(d) Both 2 and 3
(e) All of the above
52. Which among the following is associated with Internet
Mail?
(a) Inbox
(b) Server
(c) Trash
(d) Drop Box
(e) One Drive
53. What is a cursor?
(a) It is an indicator
(b) It shows the position on a computer monitor
(c) Cursor is Latin for ‘runner.
(d) Both 1 and 2
(e) All of the above
54. Which among the following is not legitimate type of
computer virus?
(a) Boot Virus
(b) File infector Virus
(c) Resident Virus (d) Hangout Virus
(e) Macro Virus
55. __________ is a self-contained step-by-step set of
operations to be performed.
(a) Algorithm
(b) Application software
(c) Network topology
(d) System Software
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
(e) Utility software
56. In computing, what is a tape drive?
(a) A data storage device (b) An OCR device
(c) A pointing device
(d) A multimedia device
(e) A text editing device
57. What does HTML stand for?
(a) Hyper Text Making Links
(b) Hyper Text Markup Language
(c) Higher Textual Marking of Links
(d) Hyper Text Mixer of Links
(e) None of these
58. The short cut key Ctrl + R is used in Excel to
(a) Right align the content of cell
(b) Remove the cell contents of selected cells
(c) Fill the selection with active cells to the right
(d) Select multiple rows
(e) None of these
59. ‘Linux’ is ______ operating system.
(a) Microsoft
(b) Apple
(c) Interface
(d) Android
(e) Open source
60. The full form of VDA is
(a) Virtual Desktop Access
(b) Visual Desktop Array
(c) Virtual Desktop Array
(d) Visual Desktop Access
(e) None of these
61. WAN stands for
(a) Whole Area Network
(b) Wide Area Network
(c) Wide Array Net
(d) Wireless Area Network
(e) None of these
62. Which among the following is an Input Device?
(a) Monitor
(b) Joystick
(c) Plotter
(d) Both 1 and 2
(e) All of the above
63. Which among the following is the largest computer?
(a) Mainframe computer
(b) Personal Computer
(c) Laptop
(d) Notebook
(e) Supercomputer
64. ISDN stands for
(a) Integral Service Dynamic Network
(b) International Subscriber Dialup Network
(c) International Service Digital Network
(d) Integrated Service Digital Network
(e) None of these
65. _____kb is approximately equal to Megabyte.
(a) 10,000
(b) 1532
(c) 1000
(d) 100
(e) 10
66. Which of the following is not a binary number?
(a) 110010
(b) 201020
(c) 101010
(d) 100001
(e) 1011101
67. Which of the following is an operating system?
(a) Compiler
(b) Plotter
(c) Mac
(d) Both 1 and 2
(e) All of the above
68. Which of the following is not an operating system?
(a) Android
(b) Windows XP (c) iOS
(d) Compiler
(e) None of these
69. Which of the following is a base of hexadecimal number?
(a) 8
(b) 2
(c) 10
(d) 16
(e) 24
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70. Which of the following is the name of an application
similar to MS Office?
(a) Libre Office
(c) Open Office (c) Neo Office
(d) Free Office
(e) All of the above
71. What is the full form of UNIVAC?
(a) Universal Automatic Computer
(b) Universal Array Computer
(c) Unique Automatic Computer
(d) Unvalued Automatic Computer
(e) None of these
72. The process of converting analog signals into digital
signals so they can be processed by a receiving computer
is referred to as
(a)Modulation
(b) Demodulation
(c) Synchronizing (d) Digitizing
(e) Transmission
73. Which of the following memory has stored data in large
number?
(a) RAM
(b) ROM
(c) Cache memory
(d) Hard Disk
(5) None of these
74. Generally, web address is located by
(a) Hyperlink
(b) HTTP
(c) URL
(d) Locator
(e) Browser
75. Which of the following is more than TB ?
(a) MB
(b) KB
(c) PB
(d) Bit
(e) Bytes
76. A web address is a unique name at identifies a specific
_______ on the internet.
(a) URL
(b) HTML
(c) CSS
(d) Website
(e) None of these
77. If you wish to extend the length of the network without
having the signal degrade, you would use a
(a) Gateway
(b) Router
(c) Modem
(d) Repeater
(e) Resonator
78. The ______ button on the Quick Access Toolbar allows you
to cancel your recent commands or activities.
(a) Search
(b) Cut
(c) Undo
(d) Redo
79. The main folder on a storage device is called
(a) Platform
(b) Interface
(c) Root Directory (d) Device Driver
(e) None of these
80. The blinking symbol on the computer screen is called
(a) Mouse
(b) Logo
(c) Hand
(d) Cursor
(e) Palm
81. Which of the following is not a computer programming
language?
(a) Windows
(b) PASCAL
(c) BASIC
(d) COBOL
82. When you want to move some text from one page to a
different page, the best method is
(a) Drag and drop
(b) Cut and paste
(c) Delete and retype
(d) Find and replace
(e) None of these
83. A _____ is example of an Input Device.
(a) Printer
(b) Keyboard (c) Monitor
(d) Compiler
(e) All of these
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COMPUTER CAPSULE FOR SBI PO/CLERK MAINS -2016
84. What is the full form of MICR?
(a) Magnetic Ink Character Reader
(b) Magnetic Ink Code Reader
(c) Magnetic Ink Cases Reader
(d) Magnetic Instant Code Recognition
(e) Magnetic Ink Code Recognition
85. Text in a column is generally aligned ______ .
(a) Justified
(b) Right
(c) Centre
(d) Left
(e) None of these
86. What does the term GUI in computing stands for ________
(a) Graphical utility interface
(b) Graphical user input
(c) Graphical user interface
(d) Graphics user intake
(e) Graphics user information
87. A saved document is referred to as _________
(a) file
(b) folder
(c) project
(d) data
(e) word
88. Which of the following is not example of Utility
Software?
(a) Backup software
(b) Antivirus software
(c) Disk tools
(d) Media Players
(e) None of these
89. Example of telecommunication device is a ________
(a) modem
(b) printer
(c) keyboard
(d) scanner
(e) mouse
90. What is the full form of Internet communication protocol
TCP/IP ?
(a) Transmission Control Practice/Internet Practice
(b) Transmission Control Protocol/Internet Protocol
(c) Transport Control Protocol/Internet Protocol
(d) Transport Component Practice/International
Practice
(e) Telephone Call Protocol/International Protocol
91. Chip is a common nickname for a(n) ______
(a) Transistor
(b) Semi-conductor
(c) Resister
(d) Hard disk
(e) Integrated circuit
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92. Which among the following is a disadvantage of an EDI
system?
(a) Speed
(b) Errors
(c) Expensive
(d) Mismatch
(e) None of these
93. A device that not only provides surge protection, but
also furnishes the computer with battery backup power
during a power outage is ______
(a) Battery strip
(b) UPS
(c) Surge strip
(d) USB
(e) Memory
94. Which of the following is a recent version of operating
systems?
(a) Windows XP
(b) Windows 7 Basic
(c) Windows 8
(d) Windows 10
(e) Windows 2013
95. What is the full form of SMTP?
(a) Swift Mail Transmission Program
(b) Simple Mail Transfer Protocol
(c) Swift Mail Transfer Program
(d) Spam Mail Trash Program
(e) None of these
96. A high speed device used in CPU for temporary storage
during processing is called
(a) Register
(b) Bus
(c) Compiler
(d) Translator
(e) Bus
97. Which of the following is used for establishing
connection to other document or locations within a
website?
(a) Hyperlink
(b) Web link
(c) CSS
(d) Java query
(e) HTML Link
98. When a computer is turned on, where does it get the first
instructions that it loads into RAM?
(a) From RAM
(b) From ROM
(c) From the Hard Disk
(d) From a CD
(e) None of these
99. Which of the following is the coding of data so that is
can’t be easily understood if intercepted?
(a) Barcode
(b) Decoder
(c) Encryption
(d) Mnemonics
(e) None of the above
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