{{No footnotes, date=September 2008
The Elektronika MK-61 is a third-generation non-
BASIC
BASIC (Beginners' All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages designed for ease of use. The original version was created by John G. Kemeny and Thomas E. Kurtz at Dartmouth College ...
calculator
An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics.
The first solid-state electronic calculator was created in the early 1960s. Pocket-sized ...
which was manufactured in the
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
during the years 1983 to 1994. Its original selling price was 85
ruble
The ruble (American English) or rouble (Commonwealth English) (; rus, рубль, p=rublʲ) is the currency unit of Belarus and Russia. Historically, it was the currency of the Russian Empire and of the Soviet Union.
, currencies named ''rub ...
s.
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
A vacuum fluorescent display (VFD) is a display device once commonly used on consumer electronics equipment such as video cassette recorders, car radios, and microwave ovens.
A VFD operates on the principle of cathodoluminescence, roughly s ...
.
Image:Main PCB front.jpg
Image:Elektronika MK-61 Main PCB rear.jpg
Image:Elektronika MK-61 Power PCB.jpg
Image:MK-61.gif