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From the mid 60s to the late 70s I was a Systems Programmer for the IBM/360 30, 40, 50, 65 and 75 mainframes. TOS, DOS, MFT and MVT. Then 370/155 (non-virtual) and 370/168MP running VM/CMS. Had fun playing with the 2260/3. One of the places took early delivery of a few 3270s with single or low double digit serial numbers. The drivers were beta quality and our people were on the phone with IBM Palo Alto to work out some of the kinks. Never saw a 5080. Sure had my fill of S0C5 data exceptions that caused abends.
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