The 7905 is bigger. That's the main plus. The OS will fit on a 7900, but not
the entire contributed library. In addition, 7900 drives are extremely
difficult to find. 7905's are almost, but not quite, as hard to come by.
7906's are technically not supported, but rumor has it they may work, just
not at full capacity, and 7906 drives are pretty easy to find. 7920's...
well, I've heard they exist.
Last night my 2000/Access MCP (initial load) tape bit the dust.. it's my
only copy. Not sure what to do there. In addition, this morning, the system
cpu now developed parity errors.
Very very demoralizing.
The first 2000/Access build I had to move the paper tape reader from the IOP
to the system processor, because I couldn't get the mag tape cross loader to
load correctly. I have since found that this is because of an error in the
2000/Access operators manual. When using the loader loader, bits 14-12 get
set to on, not clear, as stated in the manual. 14-12 on is what gets the
special IOP BBL off the loader loader tape, thus letting the cross loader (&
mag tape loader) work right.
Jay
----- Original Message -----
From: "ed sharpe" <esharpe_at_uswest.net>
To: "ed sharpe" <esharpe_at_uswest.net>; "General Discussion: On-Topic and
Off-Topic Posts" <cctalk_at_classiccmp.org>
Sent: Wednesday, September 24, 2003 12:03 AM
Subject: Re: HP2000 progress
> I would assume the data transfer rate on the 7905 is faster? remember
there
> is a lot of swap action that goes on there... each user is swapped in and
> out of core to the drive...
>
> Thanks Ed Sharpe archivist for SMECC
>
> Please check our web site at
> http://www.smecc.org
> to see other engineering fields, communications and computation stuff we
> buy, and by all means when in Arizona drop in and see us.
>
> address:
>
> coury house / smecc
> 5802 w palmaire ave
> glendale az 85301
>
>
>
> ----- Original Message -----
> From: "ed sharpe" <esharpe_at_uswest.net>
> To: "General Discussion: On-Topic Posts Only" <cctech_at_classiccmp.org>
> Sent: Tuesday, September 23, 2003 8:49 PM
> Subject: Re: HP2000 progress
>
>
> > what turned out to be the problem with the iop?
> > ----- Original Message -----
> > From: "Jay West" <jwest_at_classiccmp.org>
> > To: <cctalk_at_classiccmp.org>
> > Sent: Monday, September 22, 2003 6:16 AM
> > Subject: HP2000 progress
> >
> >
> > > In the great HP2000 rebuild project, thanks to a huge bevy of spare
> parts
> > > from Bill, the IOP is now again singing with 32Kw! Yes, a happy snoopy
> > dance
> > > was performed :)
> > >
> > > Now it's on to resurrecting a 7905 in a lowboy cabinet. Can't decide
if
> I
> > > will use only 13037 style drives, or stick with multiple 7900's (or
> both).
> > > That should pretty much finish the runnable system restoration. Then
the
> > > only thing left will be the refurb of the 2610 printer, and the 7261
> mark
> > > sense card reader, but those certainly aren't required to run the
> system.
> > >
> > > Thanks Bill!!!
> > >
> > > Jay West
> > >
> > > ---
> > > [This E-mail scanned for viruses by Declude Virus]
> > >
> > >
> > >
> >
> >
> >
> >
>
>
>
---
[This E-mail scanned for viruses by Declude Virus]
Received on Wed Sep 24 2003 - 07:36:19 BST