[Coco] HP64000 was Re: LIF util for OS-9?
snhirsch at gmail.com
Thu Nov 3 08:27:22 EDT 2011
On Wed, 2 Nov 2011, Willard Goosey wrote:
> On Wed, Nov 02, 2011 at 05:14:40PM -0400, Steven Hirsch wrote:
>> Heh. At one point, I had three of them and two of the monster hard
>> drives. When space got tight, things had to go.
> Wow, nice setup. Reminds me of the setup I used to get my OS disks.
> 2 64000 mainframes, a fridge-sized hard drive, huge printer, and I
> think one of the luggable 64000's packed into this little storage
> room. After I got my 64000, I begged the professor in charge of that
> room to let me make copies of his boot disks.
>> I never was able to find out much of anything about the CPU. I think it
>> said Intersil on it, but otherwise seemed proprietary to the 64000.
> HP went to a lot of trouble to make sure NO ONE found out anything
> about the CPU. I've picked up the impression that it's a straight
> 16-bit CPU (16-bit data bus, 16-bit address bus), byte addressed.
> The 64000 was for cross development and HP didn't want you doing
> ANYTHING else on it.
> I've never done much more than play around with the 64000. Without a
> hard drive it's pretty much a toy. The floppy drives are proprietary,
> so I couldn't just add a couple more 360K drives. I tried.
FYI: If you can find an IEEE-488 hard disk from a newer HP instrumentation
computer (forget what those white rack-mounted systems are called), they
work fine with the 64000 and use more recent 5.25" drive mechanisms.
There's also some sort of IEEE hard drive emulator that uses a PC parallel
port. Don't know any details.
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