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resolution
The degree of screen image clarity. Video display resolution
is determined by the number of pixels on the screen. Reso-
lution is usually specified in pixels by scan lines, for exam-
ple, 640 by 480. See pixels.
RS-232C
Standard interface for serial devices.
S
scanner
An optical device that reads printed material and converts it
to a computer screen image.
serial interface
An interface that communicates information one bit at
a time.
serial printer
A printer with a serial interface.
software
Programs that run on a computer, such as operating sys-
tems, word processors, and spreadsheets.
super video graphics array (SVGA)
A color bit-mapped graphics display standard, that provides
a resolution of 1024x 768 with up to 256 colors displayed
simultaneously.
system board
The main printed circuit board inside the system unit into
which other boards and major chip components, such as the
system microprocessor, are connected.
Glossary-8
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