Toshiba SATELLITE M30X User Manual

Page 149

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User’s Manual

Glossary-2

Glossary

MS-DOS: Microsoft Disk Operating System
PCI: peripheral component interconnect
RAM: random access memory
ROM: read only memory
RTC: real time clock
SCSI: small computer system interface
TFT: thin-film transistor
USB: Universal Serial Bus
VESA: Video Electronic Standards Association
VGA: video graphics array
XGA: extended graphics array

A

adaptor: A device that provides an interface between two dissimilar

electronic devices. For example, the AC adaptor modifies the power

from a wall outlet for use by the computer. This term also refers to

the add-in circuit cards that control external devices, such as video

monitors and magnetic tape devices.

application: A group of programs that together are used for a specific task

such as accounting, financial planning, spreadsheets, word

processing and games.

ASCII: American Standard Code for Information Interchange. ASCII code

is a set of 256 binary codes that represent the most commonly used

letters, numbers, and symbols.

B

BIOS: Basic Input Output System. The firmware that controls data flow

within the computer. See also firmware.

bit:

Derived from "binary digit," the basic unit of information used by the

computer. It is either zero or one. Eight bits is one byte. See also

byte.

boot: Short for bootstrap. A program that starts or restarts the computer.

The program reads instructions from a storage device into the

computer’s memory.

bps: Bits per second. Typically used to describe the data transmission

speed of a modem.

buffer: The portion of the computer’s memory where data is temporarily

stored. Buffers often compensate for differences in the rate of flow

from one device to another.

bus: An interface for transmission of signals, data or electric power.
byte: The representation of a single character. A sequence of eight bits

treated as a single unit; also the smallest addressable unit within the

system.

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