TI-55
Encyclopedia
The TI-55 is a programmable calculator first manufactured by Texas Instruments
in 1977. It had an LED display, and weighed 6.4 ounces (180 grams).
Texas Instruments
Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...
in 1977. It had an LED display, and weighed 6.4 ounces (180 grams).