Juku E5101
Juku E5101 was a personal computer based on the KR580VM80A CPU (a Soviet clone of the Intel i8080A) that was released in 1988 and was produced in Narva,  plant (from Russian "Балтиец", Baltiyets) , till the collapse of the Soviet Union. The target market for the Juku was schools and in 1991 many, if not all, bigger (at least 100 pupils) Estonian schools had a computer classroom that was furnished with those machines. Despite their wide availability, their use in practical office work was severely limited due to lack of end user skills and the shortage of computer professionals, who could have trained the end users.

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Soviet computer systems