Apple question - test-drb@ccmp.vtda.org

24 Mar 1999

...
   I picked up an
Apple Harddisk 20SC and an Apple tape backup 40SC today.
  Which Apples will these work on?  Do you need any specail software or
  hardware to use them? 
SC means SCSI so will work on mac plus and later. you'll need sw for the TBU.
for hard drive, just set the ID and termination if needed, and go. if the 
hard drive is set to boot id, (0, IIRC) and has a system folder, the mac will  boot
...
 from it.  
'0' is the id Apple traditionally uses for the internal hard drive, 
though it doesn't have to be.  A Mac can boot from a SCSI HD with and id 
setting (eg. I've booted a Mac Plus off a Zip drive, which can only be 
set to id 5 or 6).  If the hard drive doesn't have a System Folder, you 
should be able to just copy one off a boot floppy.  This will usually 
work, though you'll have a very minimal system.

Tom Owad