Elektronika MK-61

Elektronika MK-61

The Elektronika MK-61 ( _ru. Электро́ника МК-61) is a third-generation non-BASIC, RPN programmable calculator which was manufactured in the Soviet Union during the years 1983 to 1991. Its original selling price was 85 rubles.

The functionality of the MK-61 is identical to that of the MK-52, except the MK-52 has an internal non-volatile EEPROM memory module, for permanent data storage and also has the capability of using external EEPROM modules. The MK-61 is functionally very similar to the MK-54, the B3-34 and B3-21 Elektronika calculators, all of which are renowned for having a very large number of undocumented functions.Fact|date=February 2007

The MK-61 has 105 steps of volatile program memory and 15 memory registers. It functions using either three AA-size battery cells or a wall plug. It has a ten-digit (eight digit mantissa, two digit exponent) green vacuum fluorescent display.

The MK-61 was in production from 1985 to 1993.

External links

* [http://mycalcdb.free.fr 1970s-1980s pocket calculators database]
* [http://www.alfredklomp.com/mk-61/ Alfred Klomp's page on "Hacking the MK-61"]
* [http://www.geocities.com/SiliconValley/1061/b334doce.htm How to calculate on the Elektronika B3-34 (and similar calculators)]

Emulator

* [http://www.emulator3000.org/Calculators3000/Calculators3000.rar Here you can download an emulator of all Soviet Programmable Calculators]
* [http://www.emulator3000.org/c3.htm the page with a description of the emulator]


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