SCSI is an entirely different interface than the more popular IDE. It is more of a system level interface, meaning that it does not only deal with disk drives.

From the A32 Article Archives The Mysteries of Various SCSI Bus Configurations Or SCSI-1, -2, -3 By Howard McKinney - A32 Apple was the first to apply the SCSI interface to practical use on the SCSI Ready Macintosh Plus. Apple chose this interface primarily for its speed, device independence and expandability. This interface known as SCSI-1 is still being used today especially in Mac's. Now ...

How to Get T10 Draft Standards (and other Publications) Approved American National Standards and Technical Reports may be purchased from: ANSI 11 West 42nd Street 13th Floor New York, NY 10036 Sales Dept: (212) 642-4900 or from Global Engineering Documents (see below). Approved (and published) T10 standards and technical reports are: Title Designation|Comment ...

NAME Introduction SCSI is an 8-bit parallel I/O bus. Devices Addresses Initiator/Target = Client/Server Electrical Specifications Protocols SCSI-2 Fast-Wide SCSI-2 SCSI-3 Related Articles References AUTHOR NAME SCSI Buses - An introduction to SCSI technology Introduction Credit for this information should go to Dinah McNutt. SCSI is an 8-bit parallel I/O bus. It comes in 3 flavours, SCSI-1, ...

The organization promises improved data throughput and reduced system overhead compared with current small computer system interface standards.