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reset
The process of returning a device to zero or to an initial or arbitrarily
selected condition.
resolution
The degree of screen image clarity. Video display resolution is
determined by the number of pixels on the screen. Resolution is
usually specified in pixels by scan lines, for example, 640 by 480.
See pixels.
RS-232C
Standard interface for serial devices.
S
SEC
Single-Edge Contact. The SEC cartridge containing the Pentium II
processor. See Slot 1.
serial interface
An interface that communicates information one bit at a time.
serial printer
A printer with a serial interface.
SGRAM
Synchronous Graphic Random Access Memory. A type of DRAM
used increasingly on video adapters and graphics accelerators. Like
SDRAM, SGRAM can synchronize itself with the CPU bus clock at
speeds of up to 100 MHz. In addition, SGRAM uses several other
techniques, such as masked writes and block writes, to increase
bandwidth for graphics-intensive functions. Unlike VRAM and
WRAM, SGRAM is single-ported (it can only be accessed by one
device at a time). However, it can open two memory pages at once,
which simulates the dual-port nature of other video RAM
technologies (access by two different devices simultaneously). See
VRAM and WRAM.
18 Glossary
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