User’s Manual
Glossary-2
Glossary
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.
