What's the rarest or most unusual computer-related item

Nico de Jong nico at farumdata.dk
Tue Jan 17 10:33:14 CST 2017

I wouldnt be surprised if I were the only one with a Philips PTS mini, or 
rather a set of spares that can be combined into one. The PTS series is a 
swedish development, based on Philips P800 hardware, but with a lot of extra 
adapters so it could be used for banks, airlines, etc.
BTW : I'm still looking for a 5 MB drive, called PTS 6876. It is also known 
under other (Philips) names.


  ----- Original Message ----- 
  From: Rik Bos
  To: 'General Discussion: On-Topic Posts'
  Sent: Tuesday, January 17, 2017 3:58 PM
  Subject: RE: What's the rarest or most unusual computer-related item

  My rarest item is a Diehl Alphatronics a very rare combination of 
computer/calculator it's a same kind machine as the HP 9820A or some Wang 
calculators from the era (early 70ties).
  I also have the service manuals for this machine and some spares to keep 
it running.
  Other rare items in my collection are the HP 9821A actually a HP 9820A 
with a cassette drive like the HP 9830.
  And a HP 9831A which is basically a HP 9825A with firmware to run HP 9830 
basic and a different keyboard, but the firmware also works 1n the HP 9825A.
  I also have part of a memory core module(6 layers) from an IBM 1401.


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