TI-SR-50 scientific pocket calculator
The SR-50 was Texas Instruments' first scientific pocket calculator with trigonometric and logarithm functions.
The SR-50 measured 5-3/4 inches long by 3-1/8 inches wide by 1-3/16 inches high (147 mm by 78 mm by 31 mm) and was powered by a rechargeable NiCad battery pack, built from three soldered AA cells. It had 40 keys, and flat sliding switches for degrees/radians and on/off. "SR" stood for "slide rule."
Manufactured in 1973
Serial number SR50 0553347
Kindly donated by Francis Hookham
Manufacturer: Texas Instruments
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This exhibit has a reference ID of CH31351. Please quote this reference ID in any communication with the Centre for Computing History.