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Toshiba A50 User Manual

Page 195

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User’s Manual

Glossary-2

Glossary

LED: light emitting diode

LSI: large scale integration

MS-DOS: Microsoft Disk Operating System

OCR: optical character recognition (reader)

PCB: printed circuit board

PCI: peripheral component interconnect

RAM: random access memory

RGB: red, green, and blue

ROM: read only memory

RTC: real time clock

SCSI: small computer system interface

SIO: serial input/output

SXGA+: super extended graphics array plus

TFT: thin-film transistor

UART: universal asynchronous receiver/transmitter

USB: Universal Serial Bus

UXGA: ultra extended graphics array

VESA: Video Electronic Standards Association

VGA: video graphics array

VRT: voltage reduction technology

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.

allocate: To assign a space or function for a specific task.

alphanumeric: Keyboard characters including letters, numbers and other

symbols, such as punctuation marks or mathematical symbols.

alternating current (AC): Electric current that reverses its direction of flow

at regular intervals.

analog signal: A signal whose characteristics such as amplitude and

frequency vary in proportion to (are an analog of) the value to be
transmitted. Voice communications are analog signals.

ANSI: American National Standards Institute. An organization established

to adopt and define standards for a variety of technical disciplines.
For example, ANSI defined the ASCII standard and other
information processing requirements.

antistatic: A material used to prevent the buildup of static electricity.