Small Computer Systems Interface (SCSI) Concepts

The Small Computer Systems Interface is a set of physical and electrical parameters that defines a standardized parallel bus structure that interconnects peripheral devices in a daisy chain configuration.
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Small Computer Systems Interface is an input/output (I/O) bus that communicates between a peripheral and a controller on a host computer system. While SCSI interfaces are most often used for disk and tape drives, they have also been used to scanners, printers and other devices.
For more, optional information is available from the 'Frequently Asked Questions' on SCSI.

Terms used: daisy chain, parallel bus structure, peripheral devices .