Re: //c+ and SCSI hard drives ... HELP

[dempson@actrix.gen.nz (David Empson)]

In article <38gh3rINN170@oboe.cis.ohio-state.edu>,
Forest Hursey <forest@cis.ohio-state.edu> wrote:
> 
> I wish to connect a SCSI hard drive to my Apple //c+ but I am unaware
> of what I need to do.

You'll have a hard time trying to connect a SCSI drive directly to a
IIc+, since it has no SCSI port, and no slot in which to install a
SCSI card.

The only option I can suggest is to use a SmartPort-to-SCSI conversion
device, which can daisy-chain from the disk port.

The only such device that I know of is built into the Chinook hard
drive range for the Apple IIc, which are currently sold and supported
by Sequential Systems.

These are complete hard drives, and are rather expensive.  I haven't
seen one, but I believe it is a standard SCSI hard drive mechanism in
an external case, with an extra circuit in the case which connects
between the SmartPort bus and the SCSI bus.

It may be possible to replace the mechanism with another SCSI drive.

Can anyone else fill in the details?

SmartPort is slower than SCSI (about 30KB per second compared to 100KB
to 1MB per second for a SCSI card, depending on the card, drive and
operating system), so the hard drive will not run anywhere near as
fast as it could on a IIe or IIgs using a normal SCSI card.
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand