IBM System/370 Model 125
It was manufactured from 1972 by IBM. This computer was not manufactured in COMECON, it is probably a "western heritage".
Computers derived from IBM System/370 Model 125
The following computers were inspired by or derived from IBM System/370 Model 125:
EC 1025 (ZPA Čakovice)
References
https://en.wikipedia.org/wiki/IBM_System/370
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https://www.ibm.com/history/system-370
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http://bitsavers.trailing-edge.com/pdf/ibm/370/princOps/GA22-7000-7_IBM_System_370_Principles_of_Operation_8th_ed_198103.pdf
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WebArchive
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