Minsk-22

Computer Minsk-22, 1966

Minsk-22 is a second-generation Soviet electronic computer of the Minsk family of computers. According to the classification adopted at the time of the start of production, it belonged to a middle class computer. The machine was created for use in the national economy to solve planned economic problems. This machine was a modernization of the Minsk-2 machine in terms of expanding RAM and the ability to connect new input-output devices. Serial production started in 1965 .

Content

Specifications

Memo to programmer V. M. Kazakov (Computing Center of the Institute "Energosetproekt"). 1960s Digital code Minsk-22

bit depth (word length): 37 digits;
command system : 108 commands, two-address, the format of the address depends on the operating mode — normal mode or T mode;
capacity of random access memory on magnetic cores (MOZU): 8192 words;
appeal cycle to the MOZU: 24 microseconds;
capacity of external memory on magnetic tape (8 tape drives): 100 thousand words per 1 coil;
way of presenting information: fixed and floating point numbers, alphanumeric information in 6-bit M-2 code (6 characters in a cell, signed digit is not used);
number representation range:
- fixed-point: 0 ≤ | x | <1
- floating point: 0.5421010 · 10 ⁻¹⁹ - 0.9223372 · 10 ¹⁹ ;
information input speed:
- with punched tape : 1000 lines / sec
- with punch cards : 300 cards / min;
information output speed:
- perforated tape: 80 lines / sec
- on punch cards: 100 cards / min;
- on the alphanumeric printing mechanism: 25-400 lines / min;
performance: about 56 thousand operations / sec;
basic operations time:
- addition of two binary 37-bit fixed-point numbers: 12 microseconds;
- addition of two binary 37-bit floating point numbers: 75 μs;
- Multiplication of two binary 37-bit floating point numbers: 200 μs.

Software

For Minsk-22, quite rich, by the standards of its time, software was developed:

libraries of standard programs (BSP-63 or BSP-67);
symbolic coding system ( YSC );
autocode for solving AKI engineering problems;
translator from ALGEK language (such as Kobol );
translator from Algol language (MEI-3) ^[1] ;
Fortran translator.

Literature

V.M. Kalachev, M.M. Yakubovich. Programming on the electronic computer "Minsk-2" and "Minsk-22". - Moscow: Soviet Radio, 1971.
L. N. Korolev. Computer structures and their software. - Moscow: Nauka, 1974. - 350 p.

Notes

↑ I / O in Algol (unopened) (inaccessible link) . Date of treatment January 15, 2012. Archived March 1, 2012.

Links

Smirnov G. D., Grekovich A. V. Electronic digital computer Minsk-22 (neopr.) . Virtual computer museum.
Newspaper certificate on the use of the computer "Minsk-22" in the USSR in 1975 for planning in agriculture

[1] I / O in Algol (unopened) (inaccessible link) . Date of treatment January 15, 2012. Archived March 1, 2012.