>Note that the Eastern Bloc countries had it better than USSR at that time
Poland was absolutely not - notice that collapse of communist Poland is what pushed a lot of those "revolutions" over the edge.
Yet even Poland's "educational" computer Elwro 800 Junior [0] was created in 4500 units in 1986.
The first truly widespread "computing device" was Pegasus console - clone of NES. [1]