Värd att nämnas, även om den inte är handhållen, är
Busicom 141-PF från 1971, som startade hela utvecklingen av microprocessorer.
Citat:
The first commercial microprocessor, the Intel 4004, was developed specifically for Busicom Corporation for use in its calculators. The Busicom 141-PF, sold also as the NCR 18-36, was the first product sold to incorporate a microprocessor, in fact to have "Intel Inside", as the advertising slogan goes.
Handhållen var däremot
Busicom LE-120A "HANDY-LE" också från 1971.
Citat:
This highly innovative calculator claims several firsts:
The first pocket-sized calculator.
The first calculator to use an LED display.
The first hand-held calculator to use a "calculator on a chip" integrated circuit.