B. Toshiba Z10t, PT132U00500S, PT132U00600S, Z10t-A1111, Z10t-A1110, PT132U-00500S, Z15t-A1210, PT131U00202D


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B. Toshiba Z10t, PT132U00500S, PT132U00600S, Z10t-A1111, Z10t-A1110, PT132U-00500S, Z15t-A1210, PT131U00202D | Manualzz

Glossary 139

B

backup —A copy of a file, usually on a removable disk, kept in case the original file is lost or damaged.

Basic Input/Output System (BIOS) —See

BIOS

.

baud rate —The speed at which a communication device, such as a printer or modem, transmits information. Baud rate is the number of signal changes per second (not necessarily the same as bits per second). See also

bits per second

.

Blu-ray Disc (BD) —Offering more storage capacity than

DVDs, the format was developed to allow for more data storage and to enable recording and playback of highdefinition video (HD).

BIOS (Basic Input/Output System) —Basic instructions, stored in read-only memory (ROM), containing the information the computer needs to check hardware and load the operating system when you start up the computer.

bits per second (bps) —A way of measuring the speed at which information is passed between two devices. This is the basic unit of measure used in modem communications, and is similar, but not identical, to the baud rate. See also

baud rate

.

boot —To start the computer. The term “boot” originates from bootstrap program (as in “pulling itself up by its bootstraps”), a program that loads and initializes the operating system.

See also

reboot

.

boot disk —See

system disk

.

boot priority (startup sequence) —The order in which the computer accesses its internal storage drives to locate the startup files. Under the default startup sequence, the computer looks for the startup files in the external media before checking the internal storage drive.

bus —An electrical circuit that connects the central processing unit (CPU) with other parts of the computer, such as the video adapter, disk drives, and ports. It is the pathway through which data flows from one device to another. See also

bus speed, frontside bus

.

bus speed —The speed at which the central processing unit

(CPU) communicates with the other parts of the computer.

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