Commodore model P50 Electronic Calculator

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Commodore Business Machines (CBM), best known for their innovative and popular personal computers such as the VIC-20, 64, and Amiga, was a pioneering and major force in the pocket calculator industry.

Size (approx): 80mm (max) x 150mm x 31mm (max) (w,h,d)
Weight 124g excluding batteries
Power: 9V DC, 1xPP3 size battery. Also accepts an adaptor (DC-505, 707, 708 or 709, 9V centre positive, though 6V is enough) through a socket on the top side in the middle. There is a power-save display switch off after just over a minute.
Case: Two-piece stippled brown plastic case with silver painted trim and raised logo (worn off on this example). The keys in chocolate brown, light brown, beige and white are an unusual departure from the normal commodore primary colours. They are engraved and fill-painted in white or dark brown and have a loose with soft click action. The red plastic display filter is flat, heavily tilted and deeply inset into the top of the case.
Display: 12 digit red LED with bubble lens: 8+2 scientific mode with two extra digits for negative and error indication.
Features: Standard four functions, square root, reciprocal, pi, squares, factorial, sign change, register exchange, integer, five function memory, trig and transcendental functions, DRG, programmable.
Age: c1975
Complete with owners manual

Manufacturer: Commodore
Date: 1975

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This exhibit has a reference ID of CH29896. Please quote this reference ID in any communication with the Centre for Computing History.


Commodore model P50 Electronic Calculator

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