In April 1969, Japanese company Busicom hired them to do LSI (Large-Scale Integration) work for a family of calculators. Busicom’s design, consisting of twelve interlinked chips, was considered ...

Initially designed for a Japanese calculator called the Busicom 141-PF, the 4-bit 4004 found limited use in commercial products of the 1970s before being superseded by more powerful Intel chips ...

Handheld calculators were introduced into the United States in 1970 and 1971 by the Japanese firms of Busicom (Nippon Calculating Machine Corporation) and Sharp (Hayakawa Electric) as well as the ...

Designed by Marcian E. "Ted" Hoff at Intel in 1971, the 4004 was a 4-bit, general-purpose CPU initially developed for the Japanese Busicom calculator. Running at a clock rate of 740 kHz ...

Intel specifically designed the 4004 to power the Busicom 141-PF, a calculator manufactured in Japan, so its list of operations was essentially adding and subtracting. It had no logic functions.

In November 1970, the first calculator-on-a-chip, the Mostek MK6010, was announced, followed in February 1971 by the first truly pocket-sized calculator, the Busicom LE-120A “Handy” that used ...

Handheld calculators were introduced into the United States in 1970 and 1971 by the Japanese firms of Busicom (Nippon Calculating Machine Corporation) and Sharp (Hayakawa Electric) as well as the ...