What Is SCSI?
SCSI, or “Small Computer Systems Interface,” is a standard used to connect many different types of hardware devices to the system, including disks, tapes, scanners, and CD-ROMs. The original SCSI specification has been reworked a number of times so that now various flavors are available.
A SCSI controller, known as a “host adaptor,” is used to connect the devices to the machine. Each host adaptor can support a number of devices over a set distance, which depends on the flavor of SCSI it supports. The devices are “daisy-chained” together, so that the host adaptor connects to the first device, the first connects to the second, the second to the third, and so on. Finally, both ends of the link, known as the “SCSI-bus,” are terminated. ...
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