What Texas Instruments’ Little Professor Can Teach Us
Cars That Think
MARCH 31, 2022
A 9-volt battery powered the Texas Instrument TMS0975NL integrated circuit and the eight-digit LED display. Texas Instruments still makes a version of the Little Professor, only now it’s sustainably powered with solar cells.) Get it wrong and the LED display flashes “EEE.” In the 1980s, the LED display was replaced with an LCD.
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