SCSI bus can support up to how many devices simultaneously?
SCSI, Fast SCSI, Ultra SCSI, Ultra2 SCSI: 8 devices
Wide SCSI, Fast Wide SCSI, Ultra Wide SCSI, Wide Ultra2 SCSI,
Ultra3 SCSI, Ultra160 and 160+ and Ultra320 : 16 devices
Of course, the number of devices supported depends not only on
protocol limitations, but cable length, number of cables used,
etc.