# Elka 22

**Elka 22** is the first

Bulgarian electronic calculator, released in

1965. This 8.5kg electronical monster, has 3 registers and operates with 12

decimal digits.

Addition speed is 0.3

seconds per operation, and

division speed is 0.5 sec. Power consumption is 35

Watt.
This calculator was widely used in

Bulgaria and

USSR until

1980.