Specifications

This chapter introduces you to the SCSI interface. If you are
unfamiliar with the SCSI interface, be sure to read this chapter
thoroughly.
This fast, simple interface was pioneered by Shugart and Associates
and was originally called the Shugart Associates System Interface
(SASI). The American National Standards Institute (ANSI) modified
and added to the SASI specifications and renamed it SCSI (Small
Computer System Interface). This interface, called SCSI-I, has
undergone several revisions and is currently defined by ANSI
specification X3.131-1986. The SCSI adapter card also supports the
latest interface, called SCSI-II.
The SCSI adapter card allows you to connect up to eight devices,
including the adapter card, in what is called a daisy-chain
arrangement. All devices connected through the interface are
assigned a SCSI ID number so that they can recognize each other.
When you use multiple SCSI devices, you must pay attention to
the terminators that affect the arrangement of the devices along
the SCSI interface. SCSI ID numbers and terminators are explained
in more detail in the following sections.
The SCSI Interface
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