out-of-mainstream minis

Jonas Otter jonas at otter.se
Thu Jul 2 14:59:34 CDT 2015

On 2015-07-02 15:47, Mattis Lind wrote:
> 2015-07-02 7:31 GMT+02:00 tony duell <ard at p850ug1.demon.co.uk>:
>> Not all minis came from the States :-)
> That's right. There were one odd swedish mini as well.
> Datasaab manufactured a line of minis called D5 in the early seventies. The
> D5/10, D5/20 and D5/30. 16 bits.
> They were used among others in banks for controlling terminals.
> The D5/20 apparently had 64 by 24 bit microcode, used serial arithmetic and
> the memory cycle was 1.33 us
> http://www.datasaab.se/Aktuellt/IT_ceum/D520_FUB.pdf (in Swedish)
> http://www.datasaab.se/Bildarkiv/D530/d530_eng.htm
> http://www.datasaab.se/Bildarkiv/NTP/ntp_eng.htm
There is also the Swedish Ericsson UAC1610 and its successor the APN586, 
16-bit computers used in telephone exchanges, management systems for 
telephone exchanges and also in railway interlockings. There are about 
140 of these interlockings in use in Sweden at the moment; due to 
problems with obtaining some components the manufacturer does not 
provide spare parts any longer so they are being replaced over a period 
of some 20 years or so. I have tried to find documentation on the 
Internet but it seems extremely hard to find, if it exists at all 
outside of the manufacturer.


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