🚀 go-pugleaf

From: imagen!geof@su-shasta.arpa

I spoke to an Apple-person at NCC Wednesday.  He indicated that there
were four hard disk products out there for the MAC (I didn't go into
names).  Two use direct, non-applebus connections to the MAC.  One uses
an applebus-compatible connection to the MAC.  One uses the `second
disk' port.

There is only one applebus port on the MAC.  Thus if your hard disk (or
whatever) doesn't use an applebus-compatible protocol to talk to that
port, you can't run applebus on the MAC while that peripheral is hooked
up (applebus-compatible does not necessarily mean that it can be shared
with other macs on the ABus, just that it knows how to live in that
multi-drop environment).  User beware.

Because applebus is pretty slow as nets (and hard disks) go, it is
probably the case that the applebus-compatible disk is slower to access
than the others.  The disk that used the disk port seemed to me to be
the best compromise, although I don't really know the details.


- Geof Cooper
  Imagen