Elka 22
Encyclopedia
The Elka 22 was the first Bulgaria
n electronic
calculator
; it was released in 1965. Weighing 8.5 kilograms (18.7 pounds), the Elka 22 has 3 registers and operates with 12 decimal
digit
s. Addition speed is 0.3 seconds per operation, and division speed is 0.5 seconds. Its power consumption is 35 watt
s.
This calculator was widely used in Bulgaria
and the USSR
until 1980. It was produced in Izot factory, which calculator
s are most known as Elka
s.
Image source: Soviet Calculators Collection
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...
n electronic
Electronics
Electronics is the branch of science, engineering and technology that deals with electrical circuits involving active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies...
calculator
Calculator
An electronic calculator is a small, portable, usually inexpensive electronic device used to perform the basic operations of arithmetic. Modern calculators are more portable than most computers, though most PDAs are comparable in size to handheld calculators.The first solid-state electronic...
; it was released in 1965. Weighing 8.5 kilograms (18.7 pounds), the Elka 22 has 3 registers and operates with 12 decimal
Decimal
The decimal numeral system has ten as its base. It is the numerical base most widely used by modern civilizations....
digit
Numerical digit
A digit is a symbol used in combinations to represent numbers in positional numeral systems. The name "digit" comes from the fact that the 10 digits of the hands correspond to the 10 symbols of the common base 10 number system, i.e...
s. Addition speed is 0.3 seconds per operation, and division speed is 0.5 seconds. Its power consumption is 35 watt
Watt
The watt is a derived unit of power in the International System of Units , named after the Scottish engineer James Watt . The unit, defined as one joule per second, measures the rate of energy conversion.-Definition:...
s.
This calculator was widely used in Bulgaria
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...
and the USSR
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
until 1980. It was produced in Izot factory, which calculator
Calculator
An electronic calculator is a small, portable, usually inexpensive electronic device used to perform the basic operations of arithmetic. Modern calculators are more portable than most computers, though most PDAs are comparable in size to handheld calculators.The first solid-state electronic...
s are most known as Elka
Elka
ELKA or Elka may refer to one of the following:*An Italian Synthesizer manufacturer, now defunct. Notable units include; ELKA Synthex, ELKA Rhapsody, ELKA X-55, and the ELKA MKxx series of MIDI controllers . Notable customers include Jean Michel Jarre, Tangerine Dream, Klaus Schulze and, Supertramp...
s.
Image source: Soviet Calculators Collection