Name of Sector ICT Name of Module MES Code ICT 703

GENERAL INFORMATION FOR COMPUTER HARDWARE ASSISTANT Under MES
ICT
Name of Sector
Name of Module
MES Code
COMPUTER HARDWARE ASSISTANT
ICT 703
Competency as per N C O
Code
Duration of Course
3121.1
500 Hours
10th Pass
Entry Qualification of Trainee
Unit size (No. Of trainees)
Power Norms
Space Norms (Workshop and
Class Room)
Instructors Qualification
Desirable
20
3.45 KW
70 Sq. Mtrs.
B.E. / B.Tech. in Computer
Engineering /IT, MCA, B Level with
one year Experience
OR
Diploma(three years) in Computer
Engineering/IT, BCA,NIELIT A Level
with two years of Experience
OR
NTC/ NAC in
Computer Hardware & Network
Maintenance/ICTSM Trade with
three years of Experience
Craft Instructor Certificate(CIC)
26
Job Role:
The role of a Computer Hardware Assistant is to support and maintain computer systems,
desktops, and peripherals. This includes installing, diagnosing, repairing, maintaining, and
upgrading all hardware and equipment while ensuring optimal workstation performance. The
person will also troubleshoot problem areas in a timely and accurate fashion, and provide end
user training and assistance where required.
In a Nutshell :
Installing, maintaining and repairing software or hardware
Troubleshooting different computer issues
Determining and installing appropriate protection/security measures
Providing technical support on-site or via phone or email
Install, configure, and maintain common end user application software. May train and provide
assistance to end users.
· Troubleshoots software and hardware problems related to Internet applications.
·
·
·
·
·
Terminal Competency: After completion of the training, Participants would be able to:
·
·
·
·
·
·
·
·
·
·
·
·
Plan and prepare for installation
Install software/equipment/device system
Plan and prepare for diagnosis of faults of computer systems
Diagnose faults of computer systems
Repair defects in computer systems
Test systems
Plan and prepare for configuration
Configure computer systems
Inspect and test configured computer systems
Plan and prepare for the maintenance of computer systems
Maintain computer systems
Inspect and test configured/repaired computer system
27
Syllabus for the Trade of
“COMPUTER HARDWARE ASSISTANT”
Under MES
Duration : 500 Hours. / 13 Weeks / 3 months
Week
No.
Practical
Theory
Familiarization with the Institute and Safety
a) Visits to workshops, labs, office, stores
etc., of the institute.
b) Demonstration of safety precaution.
c) Demo of first aid practice.
d)
Demo of artificial respiration and
practice.
e) Demo of electrical safety precautions.
a) Punctuality and Discipline expected of
trainees. Course duration, methodology and
structure of the training program.
Basic concepts of Electricity –
a)Identify specification of types of fuses.
Identification and specification of type of
switches.
1
b) About the institute and infrastructure.
c) Safety in moving and shifting heavy and
delicate equipments.
d) First aid.
e) Artificial respiration.
f) Electrical safety.
g) Concept of current and voltage.
b)
Identification of meter types and
AC, DC Supply indicating lamps.
measuring range.
Different types of Fuses and their
applications.
Different
types
of
c) Measure voltage and current using
connectors used in electrical and
Multi-meter (analog-digital).
electronic applications. Different types
of
switches used in electrical and
d) Measure DC and AC power using V-I
electronic
applications.
method and using power meter.
h) Measuring instruments, MC, MI type,
Ammeter, Voltmeter, Multimeter for
measuring
voltage
and
current.
Construction, characteristics/ features and
specification. Digital Multimeter
i) Meaning of resistance, continuity
and continuity testers. Multimeter for
checking continuity.
2
j) Concept of Power and measurement
using V&I meter and Power meter.
Classification, characteristics and
Resistors, Inductance, Capacitance and a)
application
of different types of resistors.Soldering &
carbon
film,
metal film, wire wound,
De-soldering.
cermets
and
surface
mounted.
a) Identify different types of resistors from
physical appearance.
b) Colour coding of resistors.
b) Identify resistor value and tolerance using Calculating Imeasuring resistance value and
its tolerance value. Wattage of resistors,
colour code.
specific resistance and their importance.
c) Measuring resistance using Multimeter.
c) Resistors in series and parallel.
d) Soft soldering and precautions
d) Soldering and desordering techniques, to be taken for making a good
practice using hook-up wires. Soldering solder joint. Types of solder and need of
28
resistors on Tag board.
soldering paste.
e) Verification of Ohms Law and Kirchhoff's e) Ohms law and Kirchhoff’s
Laws.
Laws.
f)Soldering resistors on PCB.
Printed circuit boards and its
f)
g)De-soldering practice.
application.
h) Experiment using P.T.C and NTC
resistors.
g) De-soldering tools.
i) Experiment to check VDR's.
j) Experiment to check LDR's.
k) Test Pots, Presets.
l) Identification of different
inductors and its specifications.
3
types
h) Temperature dependent resistors and
their applications.(PTC and NTC) .
i) Voltage dependent resistors
of
(VDR).
j) Photoelectric effect, Light
m) Measure inductance using LCR meter.
Dependent resistors.
Calculate inductive reactance at different
input signal frequencies.
k) Variable resistors, pots, presets, types
and application. Log and Linear resistors.
n) Demo on self and mutual induction.
l) Definition of inductance.
o) Check step down transformers.
Properties. Types of inductors and their
p) Rewind a transformer to given
application.
specification using winging machine.
m)
Inductive reactance, measuring
inductance and inductive reactance.
q) Finding losses and efficiency of given
Meaning of lead, lag. Effect of inductor on
transformers.
power factor. Frequency dependence of
inductive reactance.
r) Identifying and testing high frequency
n) Self and Mutual inductance.
transformers used in electronic circuits.
Coefficient of coupling.
s) Identify of different types of capacitors
o) Transformers. Turns ratio.
from colour code and typographic code.
Transformer winding. Winding machines.
t) Test working condition of capacitor.
p) Transformer losses and efficiency.
Measure capacitance using RLC meter.
q) Uses, losses, efficiency type of cores
u) Measure capacitive reactance at different
and uses for LF, HF, VHF transformer.
frequencies.
r) Transformers used in high frequency
v) Measure capacitance and capacitive
applications.
reactance of, capacitors in series and
s)
Working principle of capacitors.
capacitors in parallel.
Electrostatic action, dielectric constant.
w) Find the resonance frequency of a given
Unit of capacitance and capacitive
Series and parallel resonance circuit.
reactance. Types of Capacitors-electrolytic,
ceramic, polyester, tantalum, mica, surface
mounted. Colour coding, and tolerance.
t) Measuring capacitance and capacitive
reactance.
u) Behavior of capacitance at different
frequencies.
v) Capacitors in series and parallel.
w) Meaning of Resonance.
Application of resonance. Series and
parallel resonance circuits
Electronic Components –
a) Semiconductor, intrinsic and extrinsic
a) Identify terminals of different types of semi conductors, P and N type
diodes. Record its specifications referring to semiconductor. Development of P.N.
diode data sheet.
junction barrier potential. Effect of
b)
Plot forward and reverse
temperature. Breakdown voltage.
29
characteristics of diode Testing working
condition of diodes.
c) Construct and test a half wave and full
wave diode rectifiers.
d) Construct and test a Bridge rectifier
with and without filter
e)
Construct a bridge rectifier with
capacitance input filter.
f) Draw Zener diode characteristics, Simple
voltage regulator using zener diode.
g) Identify types transistors based on their
physical appearance. Identify the leads of the
given assorted types of transistors.
h) Quick test given transistors using
Multimeter. Identify opens, shorted junctions
.
i) Wire and find the gain of amplifiers in CB, CE, CC configurations.
j) Practice on identifying and using
the controls on a regulated power supply.
k) Assemble and test a series
regulated power supply.
l) Assemble and test a shunt
regulated power supply.
m) Assemble and test a fixed voltage
regulator using 3pin IC.
n) Assemble and test a variable voltage
regulator using IC.
o) Assemble a simple inverter and
converter for use with emergency lamp.
p) Identify the parts and controls of a UPS.
Practice
switch-on
and
switch-off
procedures.
4
DIGITAL
ELECTRONICS
a)Identify the specifications of given digital
IC's referring to data books.
b) Verify the truth table of two input OR,
NOR, AND, NAND, NOT gates.
30
b) Different types of Diodes. Diode
terminals. Diode specifications using data
book.
c) Forward and reverse characteristics of
diode. Testing diodes using Multimeter.
d) Half wave and Full wave rectifiers
using
diodes.
Transformer
requirements. Calculating output DC,
ripple factor.
e) Bridge rectifier. Calculating output
DC, ripple factor.
f) Filters for rectifiers. Calculating output
DC, ripple factor.
g) Zener diode-Its characteristics and
application
for
voltage
regulation.
Calculating the series resistor for required
current rating.
h) Specifications of a regulated power
supply and testing a power supply for its
specifications.
i) Working principle of PNP,
Bipolar transistors. Types of transistors
and applications. Leads of transistors
and their identification.
j) Forward and reverse bias of transistor
Junction. General values of junction
resistances.
Quick testing a transistor-using Multimeter.
k) Transistor configuration - CB, CE,
CC, alpha, beta. Types of Biasing of
transistor amplifiers, comparison and
applications. Thermal runaway. Steady
and Dynamic characteristics.
Testing- get frequency response, gain
bandwidth product, signal to noise ratio.
l) Unregulated, regulated DC
Power supply specifications. Application
of different types of power supply for
specific application types.
m) Series regulator using transistor.
Short circuit protection. Overload
protection.
n)
Shunt regulators using
transistors.
o) Fixed Voltage regulators using IC's.
p) Variable voltage regulators using IC’s.
q) Mains voltage stabilizers.
r) Inverters and converters.
s) Un-interrupted power supply, types and
applications.
a) Number systems and
conversions. Classification of digital IC's.
Use of data book for identification of
digital IC's.
b) Basic LOGIC GATES and truth table.
Boolean algebra.
c) Verify of truth table of multiple input
logic gates.
d) Verify the truth table of XOR and XNOR
Gates.
e) Realization of different gate type using
NAND gates.
f) verification of Boolean laws.
g) Realization of half adder & full adder
using NAND gates. Realization half
subtractor and full subtractor using NAND
gates.
h) Verification of truth table of 7483- 4bit
adder.
i) Verifying encoder/ decoder/ multiplexer/
demultplexer IC truth tables.
j) Realization and verification of truth table
of RS, JK and MS- JK flip-flop.
k) Realization and verification of D- flip
flop.
l) Realization and verficiation of up &
down (sync/async) counter.
m) Verification of A/D & D/A converter.
n) Realization of shift registers using FF.
o) Verification of Right-shift, Left- shift
registers.
p) Verification of Serial-in-parallel out and
parallel in serial out of data.
31
c)
Logic families, logic levels,
propagation delay. Multiple input
gates.
d) XOR, XNOR gates
and
application.
e)
Simplification of Boolean
equations.
f) Combinational logic circuits. g) Half
adder, full adder, parallel binary adder, half
subtractor, full
subtractor.
h)
Commercially
available
adders/subtractors.
i)
Comparator, decoders, encoders,
multiplexer, demultiplexer.
j) Parity generators/checkers. RS Flip Flop, JK flip-flop, Master- Slave flip-flops.
k) Types of triggering and
applications. D flip-flops.
l) Counters, ripple, synchronous, updown, scale-n counters.
m) Principles of A/D & D/A converter.
Commercially available A/D & D/A
converters. Applications.
n) Shift registers. Types,
applications.
o) Commercially available shift
registers and applications.
p) Conversion of serial data into parallel
and vice-versa.
Other Mechanical, Electrical & Electronics
Accessories.
Working with Gears, Belts, Stepper Motor,
Drive.
Identification and Testing of Sensors.
Working with Relays.
Identification of different advanced Intel
microprocessor chips.
Identification
of
different
advanced
microprocessor chips other than from Intel.
5
Basics of gears, Belts, Stepper Motor,
Drive.
Sensors, its types and working principles.
Relays, types and its working principles.
Introduction to Microprocessor,
Pentium processor architecture basics.
Timing Circuits, Electronic Display (7
segment, LED, LCD, Plasma, LED matrix.
a) Introduction to computers,
classification, generations, applications.
Basic blocks of a digital computer.
DeskTop :
b) Hand Tools Basics and Specifications.
PC Repair Safety:
a) Types of cabinets, relation with mother
board form factor. Precautions to be taken
· Important Safety Basics
while opening and closing PC cabinet.
specification
and
· Identification,
b)
Main devices, components,
application of basic hand tools.
cards,
boards inside a PC(to card or device
· How to handle components to ensure their
level
only).
longevity
· What one shouldn't wear while working c) Types and specifications of the cables
and connectors used for interconnecting the
inside a computer
devices, boards, cards, components inside a
· The danger of static electricity
PC.
· How to protect a PC from lightning strikes
d) Precautions to be taken while removing
and power outages
and/or
PC.
6
7-8
re-connecting cables inside a
Hardware Identification
(a) Types of I/O devices and ports on a
standard PC for connecting I/O devices.
· Identify the front and rear panel controls b) Function of keyboard, brief principle,
types, interfaces, connectors, cable.
and ports on a PC
c) Function of Mouse, brief principle, types,
· Cases
· Cooling
interfaces, connectors, cable.
· Power Supplies
d) Function of monitor, brief principle,
· Power Supply Connections
resolution,
size,
types,
interfaces,
· Motherboard Connections
connectors, cable.
· Motherboard Components
e) Function of Speakers and Mic, brief
· CPU (Processor)
principle, types, interfaces, connectors,
· RAM (Memory)
cable.
· Hard Drive Connections
f) Function of serial port, parallel port,
· Mechanical vs. Solid State Drives
brief principle of communication through
· ROM Drives
these ports, types of devices that can be
· Video Cards
interface
standards,
connected,
· Sound Cards
connectors, cable.
g) Precaution to be taken while
connecting/removing connectors from PC
ports. Method of ensuring firm connection.
Types of Processors and their specifications
Hardware
( Intel: Celeron, P4 family, Xeon, and AMD).
Remove-Test-Replace/ Install
·
·
a) Memory devices, types,
principle
of
storing.
Data
organization 4 bit, 8 bit, word.
b) Semiconductor memories, RAM,
Removing RAM
Installing RAM
32
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
Removing a ROM Drive
Installing a ROM Drive
Removing a Hard Drive
Installing a Hard Drive
Defects related to SMPS, its cable,
connector and servicing procedure.
Removing a Power Supply
Installing a Power Supply
Removing a Video Card
Installing a Video Card
Install Expansion Cards
Removing Fans
Installing Fans
Removing the Motherboard
Installing the Motherboard
Removing the Processor
Installing the Processor
Installing a CPU Cooler
Troubleshooting
Checking the Power Switch
Removing the CMOS Battery
Seating Expansion Cards
ROM, PROM, EMPROM, EEPROM,
Static and dynamic.
c) Example of memory chips, pin
diagram, pin function of
b) Concept of track, sector, cylinder. FD
Drive components- read write head, head
actuator, spindle motor, sensors, PCB.
c) Precaution and care to be taken while
dismantling Drives.
d) Drive bay, sizes, types of drives that
can be fitted. Precautions to be taken while
removing drive bay from PC.
f) HDD, advantages, Principle of working
of Hard disk drive, cylinder and clusture,
types, capacity, popular brands, standards,
jumper
setting.
Drive
interface,
components- hard disk platens, and
recording media, ,air filter, read write head,
head actuator, spindle motor, circuit board,
sensor, features like head parking, head
positioning, reliability,
performances, shock mounting capacity.
interface
IDE,
SCSI-I/2/3
HDD
comparative study. Latest trends in
interface technology in PC and server
HDD interface.
g) Precautions to be taken while fitting
drives into bays and bay inside PC
cabinet.
h) CMOS setting.(restrict to drive
settings only).
i) Meaning and need for using
Scan disk and defrag.
h) Basic blocks of SMPS, description of
sample circuit.
33
9
Windows Installation
A walkthrough of installing Windows 7 / 8
A walkthrough of installing Windows XP
Imaging: create a Windows system image
How to Backup/Restore your Windows
partition with the bootable image disk
Duplicating a partition (creating a multiboot
system)
A multiboot system: the Windows
bootmanager vs. an alternative bootmanager
Setting up a multiboot/dualboot system
Dual Boot Ubuntu and Windows
Windows XP registry tweaks
Hardware Troubleshooting
· The
danger in not diagnosing problems
first
· Learn how to test your RAM
· Check your hard drive for errors
PC Cleaning
Types of software. System software-OS,
Compiler. Application software-like MS
office. Functions of an operating
system. Disk operating system.
a) Concept of GUI, Modes of starting
on different occasions.
b) Desktop, Icon, selecting, choosing,
drag and drop.
c)
My
computer,
network
neighbourhood / network places.
d) Recycle bin, briefcase, task bar, start
menu, tool bar, and menus.
e)Windows Explorer.
f) Properties of files and folders.
g) Executing application programs.
h) Properties of connected devices.
i)
Applications
under
windows
accessories.
j) Windows Help.
k) Finding files, folders, computers.
l) Control panel. Installed devices and
properties.
Utilities for recovering data from
defective/bad hard disks.
· The best cleaning supplies to use
m) Introduction to removable
· How to increase airflow and increase
storage devices, Bulk data storage
your computer's lifespan
optical,
magneto
devices-magnetic,
· How to clean your computer
optical drives, WORM drives.
n) CD ROM drives- Technology, Types
of CD drives, working principle
application.
o) Minor repairs and maintenance of CD
ROM drives.
p)
Technology, working principle,
capacity, media of DVD ROM drive .
q) Important parts and functions of
DVD ROM drive.
r) Minor repair works on a DVD ROM
drive.
s) Technology, working principle, capacity,
media of CD WRITER and use different
modes of writing on a CD. Using of utility
for CD writing.
t) Minor repair works on a CD
WRITER.
u) Latest trends in backup devices/media.
10
Hard Drives
· Partitioning
hard disk (primary and
extended partitions)
· Hard Drive Failures
· How To Troubleshoot a Noisy Hard Drive
· How to Format a Hard Drive
34
· What's Inside a Hard Drive?
· How Hard Disks Work
· Inside: Hard Drive Motherboard
· Desktop Hard Drive Buyer's Guide
· What is RAID? Using Multiple Hard
Drives for Performance and Reliability
hard disk (primary and
· Partitioning
· How to Completely Erase a Hard Disk
Drive
extended partitions)
· Bad
· How to check to see if your hard drive has
bad sectors
· Fix the master boot record
· Installation and configuration of storage
devices. Integration of PATA and SATA
drivers.
· Recover emails, files, and data from a
crashed hard drive or computer
Sectors in Hard disk, Master Boot
Record, in-place installation, Registry
fixing, performance level check,
Shortcut fixing, Fixing Startup
process, log, etc.
· Learn how to prevent your PC from
getting malware
· All the different types of malware and
how they attack your PC
The difference between Anti-Virus and
Anti-Spyware software
Virus Removal
· How to run a full system scan
· How to fix your browser from redirecting
to other websites (browser hijack)
· Using a modern anti-virus utility
· When utilities don't fix everything, how to
manually remove a virus
· 2 specific things to disable when trying to
get rid of a nasty virus
· 2 special utilities that work wonders
35
11
Version of a software, Service pack,
Updating of OS, Different configurations of
· How to find your system version in Computer system and its peripherals,
Compatible
with
different
Windows, Linux
hardware/software.
· Installing a service pack
Software Installation –
· How to perform a Windows Update
Pre-installation - Prerequisites, Install
procedure,
Rollback
or
Un-install
Software Installation
procedure, Tests.
Post-installation – Backup procedure &
· Installing a software program in windows
specifications,
Restore
procedure,
· How to run a file from MS-DOS
Periodical
view
check.
· Extracting or uncompressing a compressed
Awareness of legal aspects of using
file
· How to compress or make files into one computers such as copyright, patent etc.
file
· Extracting files from the Windows cabinets · What is a Driver?
· What hardware device drivers should be
· Uninstalling Windows software
updated
· Unable to remove a program from
·
What is a Device manager?
Windows Add/Remove programs
Windows Update & Device Driver
· Computer Maintenance Tips and Tricks
Installing Hardware Drivers
to Backup, Scan and Clean
· How To Update Drivers in Windows
· How To Roll Back a Driver in Windows
· Familiarization with Device manager.
· Interfacing with cellphone, tablet PC,
synchronization of contacts.
Power on self test, Peripheral diagnostics,
general purpose diagnostics, Operating
system diagnostics. Hardware boot process,
Windows boot process.
Windows Utilities
· How to Repair Corrupted Files Problems
· How to check for corrupted files
· Restore your machine back to normal
· Hard disk is filling up, what should one do?
· Where's the disk space ?
· Top 15 Ways to Speed Up the Computer
· How to Automatically Clean and Organize
the Desktop, Downloads, and Other
Folders
· 5 Simple Rules To Keep Files Organized
· 5 Reasons - Computer Is Running Slow
12
13
Project Work
Examination
36
TRADE :
COMPUTER HARDWARE ASSISTANT
LIST OF TOOLS AND EQUIPMENT
A.
Sl.No
1
3
4
5
6
7
8
9
10
11
12
TRAINEES TOOL KIT FOR 16 TRAINEES +1 INSTRUCTOR
Specification
Connecting screwdriver 100 mm
Screw driver set (set of 5 )
Insulated combination pliers 150 mm
Insulated side cutting pliers 150 mm
Long nose pliers 150 mm
Soldering iron 25 W. 240 V.
Electrician knife
Tweezers 100mm
Digital Multimeter
Soldering Iron Changeable bits 15 W
De- soldering pump
Quantity
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
21 nos.
B. Tools & Equipments
Tools and Equipment: (Computer Hardware: Installation and
Maintenance)
Sl.
No.
3
5
6
9
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
37
38
39
Name of the Equipment
HARDWARE
Desktop Computer
Intel Mobile Desktop based PC with LCD monitor
Printers: Laserjet, deskjet,
5KVA online UPS
LCD/DLP Projector
Power Meter
Computer Toolkits
Computer Spares:
Motherboards (of different make)
Cabinets
Processors (of different make)
Hard Disk (500 GB or better)
Optical Drives
LCD/LED Monitors
Pen Drives
External Hard disk
External DVD Writer
Keyboards
Mouse
Anti static pads
Anti static wrist wraps
SMPS
Digital Multimeters
Blu-Ray drive and player
Card Reader
Game video card
Web Cam
37
Qty
20 nos
01 no
01 each
01 no
01 no
02 nos
06 Nos.
As required
4 nos
4 nos
4 nos
4 nos
4 nos
2 nos
4 nos
2 nos
2 nos
4 nos
4 nos
4 nos
4 nos
4 nos
10 nos
2 nos
2 nos
2 nos
2 nos
40
42
47
49
50
51
52
Headset microphone
Different types of memory cards
SMPS Trainer kit
Power electronics Trainer kit
Post error debugging card
SMPS Tester
PCI slot Testing tool
2 nos
2 nos each
2 nos
2 nos
4 Nos
4 Nos.
4 Nos.
SOFTWARE
2
Windows Operating System
5
MS Office
6
Anti virus software
7
Data recovery software
FURNITURE and Other Equipments
1
Computer Tables
2
Computer Chairs
3
Printer Table
4
Class room chairs
5
Air conditioners (optional)
6
Scanner
7
Modem
8
Telephone Line
9
Broadband Internet connection
10 Fire fighting equipments
21 licenses
21 nos
21 nos
21 nos
20 nos
20 nos
1 no
20 nos
2 nos
1 no
1 no
1 no
1 no
As required
Raw materials
1
White Board Marker
1 Dozens
2
Duster Cloth(2’ by 2’)
20 Pcs
3
Cleaning Liquid 500 Ml
4
Xerox Paper (A4)
5
Full Scape Paper (White)
6
Cartridges for printer
As required
8
Optical Mouse P/S2 or USB
As required
9
P/S2 OR USB Key Board
As required
10
SMPS
As required
11
CMOS Battery
As required
12
3 Pin Power Chord
As required
2 Bottles
As required
1 reams
38
13
Cat 5/5e cable
100 meters
14
Stapler Small
2 pcs
15
Stapler Big
1 pcs
16
AAA battery for remote
As required
17
AA battery for clock
As required
18
8 GB pen drives
4 Nos
19
CDs
20 Nos
20
DVDs
10 Nos.
21
Wall Clock
1 pcs
22
Anti static pads
As required
23
Anti static wrist wraps
As required
24
Soldering wire and paste
As required
25
RJ-45 connector
As required
39