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National SemiConductor 4525 Scientist PR

The National SemiConductor 4525 Scientist PR is a programmable calculator with 8 digits precision and RPN (reverse polish notation) logic. It has 20 functions, 39 keys and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAAA sealed.

Facts at a glance:

Type Programmable
Functions 20
Keys 39
Precision 8
Logic RPN
Display type LED
Display size
Length 150 mm
Width 75 mm
Thickness 31 mm
Weight unknown g
Power Source 3xAAA sealed
Original price unknown
Est. current value unknown
Year introduced 1975
Year discontinued

See other calculators manufactured by National SemiConductor.