On 15 Jul 98 at 23:32, Nicolas Cure wrote:

> I am planning to build a new computer and I have trouble figuring out
> which type of SCSI card to buy. Can someone please explain the
> difference between wide SCSI, fast SCSI, ultra SCSI, etc.

  Fast SCSI is capable of 10 MB/s; Ultra SCSI doubles the pulse rate
to be able to handle 20 MB/s.  Wide SCSI moves 16 bits at a time
instead of 8, so it can handle 20 MB/s, and Ultra Wide can handle up
to 40 MB/s.  Note that most hard drives can pump less than 20 MB/s,
and devices like zip drives and scanners are slower than that.

> I have a scanner and I plan to buy a hard drive and a zip drive
> and I whant to put them on the same card but I don't know which
> card I need.

  My preferred card for your situation is the Diamond FirePort 40.

  It provides a Fast SCSI connector for external devices, and your
choice of wide or narrow internal connections for your hard drive.

David G