A common problem for all Soviet computers of the late 60’s (with a few exceptions like the “Minsk-32”) was a complete hardware and software incompatibility with each other.
Programs designed for a specific computer model simply could not be used on other machines. This, in turn, significantly increased the cost of development, where designers had to “write” a program virtually from scratch.
At the same time, the American company IBM didn’t wait for anyone and in 1965 introduced a new, third generation of electronic computers running on integrated circuits – the IBM-360, where the software was fully compatible across models.
Unfortunately, of the two development paths, the second was chosen and the development of the “Minsk” family of computers was discontinued. In 1970, the founders of the family of these machines were awarded a USSR State Prize, and since 1971 the Minsk plant for the production of computers began to produce a Single Series computers (UCS), the architecture of which was borrowed from IBM.