hardware (Or "host adaptor") A device that communicates
adaptor is usually assigned
SCSI ID 7. It is often a
separate card that is connected to the computer's
busadaptors are built in to the
motherboard. Apart from being
cheaper, busses like PCI are too slow to keep up with the
There are several varieties of SCSI (and their connectors) and
an adaptor will not support them all.
The performance of SCSI devices is limited by the speed of the
SCSI adaptor and its connection to the computer. An adaptor
that plugs into a parallel port is unlikely to be as fast as
one incorporated into a motherboard. Fast adaptors use
DMASome SCSI adaptors include a
BIOS to allow PCs to
bootfrom a SCSI hard disk, if their own BIOS supports it.
best-selling adaptors.
Note that it is not a "SCSI controller" - it does not control
the devices, and "SCSI interface" is redundant - the "I" of
"SCSI" stands for "interface".
(1999-11-24)