Information for experts and collectors about classification of Soviet calculators: mechanical, electromechanical, relays, pocket, desktop electronic, scientific (including programmable), programmable (including BASIC), with BASIC, with scientific notation, RPN, with algorithm of computing transcendent functions "Digit-by-digit" (CORDIC), with LCD display, with red LED display, with fluorescent display calculators.

Here is in brief told how to work with the Soviet RPN programmable calculator B3-34, its analogues MK-54, MK-56, and also advanced models MK-61 and MK-52.

Most remarkable is that for generation of the special video messages, supernumbers and others features based on the undocumented features of the Soviet calculator "Elektronika B3-34".

Bugs, undocumented and interesting features of Soviet calculators.

Hidden functions of calculators (western)

My article about Soviet calculators history.

(in Russian)

Please send me your comments, additions and correction grammar of the English language.

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Recent changes of this page here.

Full collection is for sale for only $1,500,000. :)