It is BS. Mid level family could import computer from west. Soviet countries manufactured several 8 bit Atari clones, HP programmable calculators....
I know some soviet companies were able to procure western computers even in 1980s but for ordinary people it was out of reach until early 1990s or late 1980s at best (at least outside Moscow).
In USSR mid level families didn't have legal access to imported goods.
Are we discussing the same USSR?
There was a chain of stores in the Soviet Union named Bierozka with western goods you could buy with USD - officially for tourists and workers from abroad.
Of course there was a flourishing currency exchange black market, but it was tolerated because it enabled the citizens to get rid of their foreign currency - something which the state wanted.