Texas Instruments SR-11

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1973
Description

The SR-11 calculator added a constant-switch and PI to the wedge shaped predecessor SR-10. More notable was the new layout of the keyboard, with the SR-11 Texas Instruments introduced the smaller keys known from todays calculators.

Legacy Content: Unknown Author
Hardware Type
Calculator
Manufacturer
Texas Instruments
Model Number
SR-11
Launch Date
1973

Citations:

Courtesy of Calculator.org
Courtesy of Datamath
Courtesy of UBC Computer Science
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