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Glossary-2 User’s Manual
Glossary
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
WXGA: wide 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.
C