TYAN Tiger K8W S2875 User Manual page 68

ROM (Read-Only Memory): a storage chip which contains the BIOS; the basic
instructions required to boot the computer and start up the operating system.
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).
SCSI Interrupt Steering Logic (SISL): Architecture that allows a RAID controller, such
as AcceleRAID 150, 200 or 250, to implement RAID on a system board-embedded SCSI
bus or a set of SCSI busses. SISL: SCSI Interrupt Steering Logic ( LSI ) (only on LSI
SCSI boards)
Sleep/Suspend mode: in this mode, all devices except the CPU shut down.
SDRAM (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.
Standby mode: in this mode, the video and hard drives shut down; all other devices
continue to operate normally.
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.
ZCR (Zero Channel RAID): PCI card that allows a RAID card to use the onboard SCSI
chip, thus lowering cost of RAID solution
ZIF Socket (Zero Insertion Force socket): these sockets make it possible to insert
CPUs w ithout damaging the sensitive CPU pins. The CPU is lightly placed in an open ZIF
socket, and a lever is pulled down. This shifts the processor over and down, guiding it into
the board and locking it into place.
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