TYAN S7016 User Manual page 90

software and operating systems. It will provide for systems which are easier to
design, with cables that are simpler to route and install, smaller cable connectors,
and lower voltage requirements.
SDRAM (Synchronous Dynamic RAM): called as such because it can keep two
sets of memory addresses open simultaneously. By transferring data alternately
from one set of addresses and then the other, SDRAM cuts down on the delays
associated with non-synchronous RAM, which must close one address bank before
opening the next.
Serial port: called as such because it transmits the eight bits of a byte of data along
one wire, and receives data on another single wire (that is, the data is transmitted in
serial form, one bit after another).
SIMM (Single In-line Memory Module): formally the most common form of RAM
for motherboards. They must be installed in pairs, and do not have the carrying
capacity or the speed of DIMM modules.
Sleep/Suspend mode: in this mode, all devices except the CPU shut down.
SRAM (Static RAM): unlike DRAM, this type of RAM does not need to be refreshed
in order to prevent data loss. Thus, it is faster and more expensive.
SSI (Server System Infrastructure): an industry initiative intended to provide
ready-to-use design specifications for common server hardware elements (chassis,
power supplies, and racks) to promote and support server industry growth.
Standby mode: in this mode, the video and hard drives shut down; all other
devices continue to operate normally.
Striping: see RAID
UltraDMA-33/66/100: a fast version of the old DMA channel. UltraDMA is also
called UltraATA. Without proper UltraDMA controller, your system cannot take
advantage of higher data transfer rates of the new UltraDMA/UltraATA hard drives.
USB (Universal Serial Bus): 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): the PC video display standard
V-SYNC: controls the vertical scanning properties of the monitor.
ZIF Socket (Zero Insertion Force socket): these sockets make it possible to insert
CPUs without damaging the sensitive CPU pins. The CPU is lightly placed in an
open ZIF socket, and a lever is pulled down. This shift the processor over and down,
guiding into the board and locking it into place.
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