At the Czech Tax Bureau in Brno in 1980 I saw what was described as a Ryad clone of an IBM 145 running DOS.
They had 3420-ish 8 tape drives, and about 100 tapes in their tape library; I think this handled only international transactions. Two lab techs in white coats had two of the tape units open with an oscilloscope on a rolling cart, and I was told the problem was that they were forced to get Bulgarian tape drives, and everyone knew you need twice as many drives - one to work and one for spare parts. Barry Merrilly yours, Herbert W. Barry Merrill, PhD President-Programmer Merrill Consultants MXG Software 10717 Cromwell Drive technical questions: [email protected] Dallas, TX 75229 http://www.mxg.com admin questions: [email protected] tel: 214 351 1966 fax: 214 350 3694 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Timothy Sipples Sent: Sunday, April 16, 2017 10:56 PM To: [email protected] Subject: Re: Mainframe operating systems? ....and MISS (Multipurpose Interactive timeSharing System) and MOS (a UNIX clone), both available in variants for the ES EVM machines. MOS begat DEMOS, also available for ES EVM machines. I've neither seen nor touched any of these Soviet era machines and operating systems. I know very little about them. Does anybody know what the Warsaw Pact countries (East Germany, Poland, Czechoslovakia, etc.) had? ---------------------------------------------------------------------------- ---------------------------- Timothy Sipples IT Architect Executive, Industry Solutions, IBM z Systems, AP/GCG/MEA E-Mail: [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
