TYAN TIGER I7520SD Manual page 77

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.
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 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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