{{Short description|Calculator manufactured in the Soviet Union}} {{No footnotes|date=September 2008}} thumb|Elektronika MK-61 The '''Elektronika MK-61''' is a third-generation non-BASIC, RPN programmable calculator which was manufactured in the Soviet Union during the years 1983 to 1994. Its original selling price was 85 rubles.
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.
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Image:Main PCB front.jpg Image:Elektronika MK-61 Main PCB rear.jpg Image:Elektronika MK-61 Power PCB.jpg Image:MK-61.gif
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==External links== * [http://www.155la3.ru/datafiles/k145ik1302_pasp.pdf Datasheet for the MK 61 processor] * [http://mycalcdb.free.fr 1970s-1980s pocket calculators database] * [http://www.alfredklomp.com/mk-61/ Alfred Klomp's page on "Hacking the MK-61"] * [https://web.archive.org/web/20091026140141/http://geocities.com/SiliconValley/1061/b334doce.htm How to calculate on the Elektronika B3-34 (and similar calculators)] * [http://www.wass.net/manuals/Elektronika%20MK-61%20English.pdf Elektronika MK-61 Operating Instructions, English translation] * [http://lordbss.pp.ru/pmk.html 250 games for MK-52, MK-61] * [http://gtello.free.fr/elektronika_e.htm MK-Compiler] easy programming on the MK-61 and MK-52.
===Emulator=== * [http://mk-61.moy.su/emulator.html Online-emulator of МК-61] (accurate emulation of the calculator's firmware, with automatic input code and output the contents of registers and stack). * [https://play.google.com/store/apps/details?id=com.cax.pmk Emulator of МК-61 for Android] (accurate emulation of the calculator's firmware, with ability to save states). * [https://play.google.com/store/apps/details?id=com.cax.pmk.ext Extended emulator of МК-61 for Android] * [http://www.emulator3000.org/Calculators3000/Calculators3000.rar Download of an emulator for all Soviet programmable calculators] * [http://www.emulator3000.org/c3.htm The page with a description of the emulator]
Category:Elektronika programmable calculators