{"id":1109,"date":"2020-08-10T12:52:46","date_gmt":"2020-08-10T17:52:46","guid":{"rendered":"https:\/\/www.computercollection.net\/?page_id=1109"},"modified":"2021-05-21T17:48:31","modified_gmt":"2021-05-21T22:48:31","slug":"wisconsin-dot-ibm-360-65-multiprocessor","status":"publish","type":"page","link":"https:\/\/www.computercollection.net\/index.php\/wisconsin-dot-ibm-360-65-multiprocessor\/","title":{"rendered":"Wisconsin DOT – IBM 360\/65 Multiprocessor"},"content":{"rendered":"\n

When I started at Wisconsin DOT in 1975, the computer system in place was an IBM 360\/65 MP, with 2MB of memory. It was a mix of IBM Core (1.25MB) and 750KB of (slightly slower) Itel memory (I had originally recalled it being the other way ’round, but my first boss at DOT remembers it this way.)<\/p>\n\n\n\n

There were IBM 2314 disk drives – but not all of the banks shown in one of the photos. By the time I arrived, they had added quite a few Memorex 3330 “washing machine”disks, shown in the photos.<\/p>\n\n\n\n

We had maybe a dozen IBM 2401 tape drives, later replaced by 3420 tape drives, and a couple of IBM 3705 Communications Controllers.<\/p>\n\n\n\n

This system was replaced by an Amdahl 470 a couple of years later – though the tape drives, printers, card readers, the 3705’s and the like remained.<\/p>\n\n\n\n

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