The Iskra 1122 has three registers formed into a stack. The standard four-function operations are performed on the operands in Registers #2 and #1.The display had a selectable fixed point, the same for all registers of the stack. There are two variants of this machine.

Brand:

Iskra

Calculator

Type:

Desktop Calculator

Series:

Other

Factory / Plant:

Vilnius Factory of Electricity Measuring Equipment (Lithuania)

Display Type:

CRT (Cathode Ray Tube Display)

Power Source:

External Power, 220 V AC

Entry Method:

Algebraic Notation

Manufactured In:

U.S.S.R. (Soviet Union)

Functional Specification:

Standard Four Functions (+-*/), Percentage (%), Sign change /-/

Circa (year):

1974..., 1979

Programmable:

Non-Programmable