Texas Instruments Little Professor
The Texas Instruments Little Professor is a specialist calculator with 8 digits precision and n/a logic. It has 4 functions, 18 keys, and an LCD (liquid crystal) display. The power source is 2xLR44. This device is not a calculator at all, but a learning device to teach children multiplication tables and other arithmetic. It has appeared in a number of versions since the 1970s. Note: Not strictly a calculator, but a popular arithmetic teaching game for children which has been manufactured in several different versions over time. A sample of this calculator is held in the calculator.org collection.
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