Commodore SR-9190R Calculator

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A scientific calculator with 10 digits precision and algebraic logic. It has 49 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA sealed batteries. The calculator was manufactured in Hong Kong. Functions include unit conversion, math, trig, %, polar/rect, complex, standard deviation, linear regression and binomial/position/Normal statistical distributions.

Information from

Our version has serial number 21998 and retains its owner's manual, power supply and was donated to us with a fabric slip case.

Manufacturer: Commodore
Date: 1975

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This exhibit has a reference ID of CH65627. Please quote this reference ID in any communication with the Centre for Computing History.


Commodore SR-9190R Calculator

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