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Elektronika MK-90

1988-1992

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The first and last micro-PC (micro-computer) produced in the USSR. It is not a clone of a Western device. The BASIC dialect is a modified version of the 1970 punched tape DEC BASIC (up to a copy of the examples in the manual). Developed by the Minsk factory "Integral" (the "Elektronika" plant).

Processor: bit slice 16-bit processor compatible with PDP-11 (~340 k op. register-register type); microcode (K)A588VU2(A)-000x, ALU (K)A588VS2(A), system controller (K)A588VG1
RAM: (K)A537RU10B; 16 KB (8x2 KB)
ROM: (K)A1835RE1(-000x); 32 KB (with BASIC 1.0), 48 KB (with BASIC 2.0, additional chip installed)
Display: LCD (IZhG80-120x64), 120 by 64 pixels or 8 lines of 20 characters; two additional segments to indicate low battery; Controller - (K)A1835VG3
Power: 6-4.8 V (4x1.5 V or 4x1.2 V) nickel-cadmium batteries (AA) type "NKGC-0.45 II S" or "NKGC-0.5-II S"; power supply 5.5 V Elektronika D2-37B