SCSI-1, SCSI-2, and SCSI-3
•
SCSI-1 = Regular SCSI
§
8-bit data bus
§
7 possible devices
•
SCSI-2 = Fast SCSI
§
Common command set
§
16-bit data bus
§
15 possible devices
§
Mandatory parity
checking
•
SCSI-3 = Ultra SCSI
§
Supports both parallel
and serial data
transmission
§
Supports FireWire
connections
§
Data transfer of 320
MB/sec