UNIX on PDP-11s

Johnny Billquist bqt at softjar.se
Fri Jun 12 07:24:42 CDT 2009


Eric Smith <eric at brouhaha.com> wrote:

> Johnny Billquist wrote:
> I didn't include any of the tape controllers because they do TMSCP, not 
> MSCP.  It's possible that I'm being overly pedantic.

True. About pendantic, I don't know... TMSCP and MSCP are very similar, 
but there are few differences as well. The device drivers usually share 
the port code part, and just have a different "upper" end.

>> > And the RQZX1, which talks both SCSI and floppy.
> I've never seen one.  Someone once told me that they didn't do MSCP 
> which caused me to lose interest.  But if they do, I should keep an eye 
> out for one.  The usual resellers seem to think they're made out of 
> solid Rhodium.

I have one. They talk MSCP and TMSCP. They have SCSI and a floppy 
interface to connect disks. It's a quad card, so bigger than most other 
SCSI controllers out there for Q-bus, but it's nice.

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol



More information about the cctech mailing list