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80
is transmitted in serial form, one bit after another).
SIMM Single In-line Memory Modules are the most common form of
RAM. They must be installed in pairs, and do not have the carrying capacity
or the speed of DIMMs.
SIMM bank/socket SIMM sockets are the physical slots into which you
stick SIMM modules. A pair of SIMM sockets form a SIMM bank, and act as a
unit. If only one socket is filled, the bank will not operate.
In Sleep/Suspend mode, all devices except the CPU shut down.
SRAM Static RAM, unlike DRAM, does not need to be refreshed in order
to prevent data loss. Thus, it is faster, and more expensive.
In Standby mode, the video and fixed disk drive shut down; all other
devices operate normally.
UltraDMA/33 is a fast version of the old DMA channel. UltraDMA is
also called UltraATA. Without UltraDMA your system cannot take advantage
of the higher data transmission rates of the new UltraATA hard drives.
Universal Serial Bus or USB, is a versatile port. This one port type can
function as a serial, parallel, mouse, keyboard, or joystick port. It is fast
enough to support video transfer, and is capable of supporting up to 127
daisy-chained peripheral devices.
VGA (Video Graphics Array) is the PC video display standard.
V-SYNC controls the vertical properties of the monitor.
ZIF socket Zero Insertion Force sockets make it possible to insert CPUs
without damaging the sensitive pins. The CPU is lightly placed in an open
ZIF socket, and the metal lever pulled down. This shifts the processor over
and down, guiding it into place on the board.
Appendix 1
Glossary