Commodore SR4921 RPN

The Commodore SR4921 RPN is a scientific calculator with 8 digits precision and RPN (reverse polish notation) logic. It has 27 functions, 49 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: RPN version of SR4912.

Facts at a glance:

Feature Value
Type: Scientific
Functions: 27
Keys: 49
Precision: 8
Logic: RPN
Display type: LED
Power Source: PP3 9V
Year introduced: 1975

See other calculators by Commodore