System of microcomputers

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The system of small computers (German abbreviation SKR, Russian СМ ЭВМ) was founded in 1974 to match the ESER system for mainframes . This was intended to achieve a coordinated division of labor between the Comecon countries in the development, production and service of mini-computer systems based on the model of various leading manufacturers in Western countries under planned economic conditions.

As with the ESER system, the SKR system was subordinated to the “Multi-sided Government Commission on Computing Technology” (MRK) of the Comecon countries and was until 1987 by a “Council of Chief Constructors SKR” (RCK), then by a “complex” shared by ESER and SKR Council of chief designers for means of computing ”.

It was determined to achieve maximum logical-functional compatibility with the so-called analog types, that is, the model series of the model systems PDP-11 and VAX from Digital Equipment Corporation (DEC) as well as with computers with microprocessor systems from Intel . Membership in the SKR was determined through joint examinations. Hardware components then received the SKR ciphers CM xxxx. By 1988, more than 380 device types had been tested in the SKR and some were also adopted in the ESER.

In a first phase of the SKR, the GDR participated with peripheral devices, in the second and third phase from 1978 with hardware and software, such as B. CM 1630 ( K 1630 ) or CM 1910 ( A 7150 ). In the fourth phase from 1984 work was carried out on the development of 32-bit computers, with the result of the successful testing of the first 32-bit computer in the GDR, the CM 1710 ( K 1840 ), in June 1988.

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