TYAN TIGER I7501S Manual page 46

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.
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.
Serial ATA: Often abbreviated SATA or S-ATA, an evolution of the Parallel ATA physical storage
interface. Serial ATA is a serial link -- a single cable with a minimum of four wires creates a point-
to-point connection between devices. Transfer rates for Serial ATA begin at 150MBps. One of the
main design advantages of Serial ATA is that the thinner serial cables facilitate more efficient
airflow inside a form factor and also allow for smaller chassis designs. In contrast, IDE cables
used in parallel ATA systems are bulkier than Serial ATA cables and can only extend to 40cm
long, while Serial ATA cables can extend up to one meter.
Serial port: Called such because it transmits the eight bits of a byte of data along one wire, and
receives data on another single wire (the data is transmitted in serial form, one bit after another).
SIMM (Single In-line Memory Module): Formerly the most common RAM for motherboards.
They must be installed in pairs, and don't have the capacity or the speed of DIMM modules.
Sleep/Suspend mode: in this mode, all devices except the CPU shut down.
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 a 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.
Wake On LAN (WOL): A remote wake-up technology that enables you to remotely power
systems "on" for off-hours maintenance. A result of the Intel-IBM Advanced Manageability Alliance
and part of the Wired for Management Baseline Specification, this technology helps save time on
automated software installations, upgrades, disk backups and virus scans. Equally important, it
increases end-user productivity by moving such planned disruptions to off-hours.
Watch Dogtimer (WDT): A device that performs a specific operation after a certain period of time
if something goes wrong with an electronic system and the system doesn't recover on its own.
The WDT contains a digital counter that counts down to zero at a constant speed from a preset
number. The counter speed is kept constant by a clock circuit. If the counter reaches zero before
the computer recovers, a signal is sent to designated circuits to perform the desired action, e.g.
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