Table 1 Chronology of mounting MPU in their product

In 1971, Busicom (calculator supplier) of Japan marketed 141-PF (mounted MPU 4004)

In 1971, Intel brought MPU 4004 into market

In 1972, Intel collaborated with Seiko (programmable calculator supplier) of Japan to bring MPU 8008 into market

In 1974, Intel announced MPU 8080

In 1974, MITS mounted MPU 8080 in its PC (Altair): first success in commercial PC

In 1975, Fanuc developed the world’s first soft-wired NC system (Fanuc 2000C) built on Intel 3000.

In 1976, Apple mounted MOS 6502 in its Apple-I

In 1979, Fanuc mounted MPU 8086 in its Numerical Controller.

In 1981, IBM mounted MPU 8086 in its PC (IBM PC)