Definitions for "Ultra Scsi"
Keywords:  scsi, mbytes, bus, sec, fast
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A term used to describe a 8-bit wide bus operating Ultra (between 10 MHz and 20 MHz). The maximum data rate of a Ultra SCSI device or bus is 20 Mbytes/sec. Sometimes referred to as Fast-20.
A standard for SCSI data transfers. It allows a transfer rate of up to 20 MBytes/sec over an 8-bit SCSI bus, and up to 40 MBytes/sec over a 16-bit SCSI bus. The STA (SCSI Trade Association) supports using the term "Ultra SCSI" over the older term "Fast-20."