What's the rarest or most unusual computer-related item do you own? [Tek 4132]
cc at informatik.uni-stuttgart.de
Wed Jan 18 03:36:42 CST 2017
On Tue, 17 Jan 2017, Chuck Guzis wrote:
> I find it curious that what seems to be collected in the minicomputer
> area seems to be gear of major brands.
Me too :-)
> Does anyone collect Varian minis?
Yes! We have a couple of Varian 620/f (some with expansion boxes)
> Or General Automation?
Yes!! We have an SPC-16/65 that I really would like to restore, but I lack
a) all kind of documents/schematics/software and b) the memory board. I
could probably build a replacement for the memory board if I had the
technical documentation for the machine.
We also have the FPs and boards of two GA16-2?? (I know that someone has
the CPU boxes and racks where these came from but I don't recall who it
> Or any one of the many non-DEC, HP, etc. minis? Heck, I don't read much
> about DG minis on this list--and they were a major force.
Dietz MINCAL 523; a micro-programmed 19 bit minicomputer with foil
micro-/macroprogram ROM (micro and macro programs share the same
address and data bus) and a mixture of sign/magnitude and twos-complement
arithmetic. It was *great* fun to reverse enginere just *everything* from
the confuse backplane wiring (no bus) to recreating the mnemonics and
disassembling the monitor and microcode.
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