On the left, the NEC TK-80 kit, based on Intel 8080 chip, on the centre, Busicom calculator motherboard, based on Intel 4004 chip, and on the right, the Busicom calculator, fully assembled in Ueno, Tokyo
Busicom Co., Ltd. (ビジコン株式会社, Bijikon Kabushiki-gaisha) was a Japanese company that manufactured and sold computer-related products headquartered in Taito, Tokyo. It owned the rights to Intel's first microprocessor, the Intel 4004, which they created in partnership with Intel in 1970.
Busicom asked Intel to design a set of integrated circuits for a new line of programmable electronic calculators in 1969.[1]: 261 [2] In doing this, they spurred the invention of Intel's first microprocessor to be commercialized,[1]: 262–263 the Intel 4004. Busicom owned the exclusive rights to the design and its components in 1970 but shared them with Intel in 1971.[3]
Two other companies have done business as "Busicom" over the years: the Nippon Calculating Machine Corp, Ltd and subsequently Broughtons & Co. (Bristol) Ltd of the UK.
^ abAugarten, S. (1984). Bit by Bit. Ticknor & Fields.
^Stine, G. H. (1985). The Untold Story of the Computer Revolution. Arbor House. p. 163.
^Reid, T. R. (1984). The Chip. Simon and Schuster. pp. 141–142.
Busicom Co., Ltd. (ビジコン株式会社, Bijikon Kabushiki-gaisha) was a Japanese company that manufactured and sold computer-related products headquartered in Taito...
necessary to make the 4004. The project traces its history to 1969, when Busicom Corp. approached Intel to design a family of seven chips for an electronic...
world's first microprocessor, the Intel 4004. In 1968, Shima worked for Busicom in Japan, and did the logic design for a specialized CPU to be translated...
microprocessor, was developed by Intel for the Japanese calculator company Busicom. Modern electronic calculators vary from cheap, give-away, credit-card-sized...
single chip – was a member of a family of 4 custom chips designed for Busicom, a Japanese calculator manufacturer. The other members of the family (constituting...
1969, when Busicom, a Japanese calculator manufacturer, asked Intel to build a chipset for high-performance desktop calculators. Busicom's original design...
MOS technology, along with Intel's Marcian Hoff and Stanley Mazor and Busicom's Masatoshi Shima. The microprocessor led to the development of microcomputers...
White. In April 1971, Busicom began to manufacture ATMs based on the first commercial microprocessor, the Intel 4004. Busicom manufactured these microprocessor-based...
technology, along with Intel engineers Marcian Hoff and Stan Mazor, and Busicom engineer Masatoshi Shima. It was followed by the 4-bit Intel 4040, the...
microprocessor concept with Busicom and Intel in 1968. The first commercial microprocessor, the 4-bit Intel 4004, began with the "Busicom Project" in 1968 as...
the ACM. 20 (9): 634–641. doi:10.1145/359810.359826. Nigel Tout. "The Busicom 141-PF calculator and the Intel 4004 microprocessor". Retrieved 2009-11-15...
manufacturer Busicom asked Intel to complete the design and manufacture of a new set of chips. Credited along with Faggin, Hoff, and Masatoshi Shima of Busicom as...
The Intel 4004 (1971) was a 4-bit microprocessor designed to run the Busicom calculator. Five months after its release, Intel released the Intel 8008...
technology, along with Intel engineers Marcian Hoff and Stan Mazor, and Busicom engineer Masatoshi Shima. One of the first recognizably modern embedded...
developed for the Japanese company Busicom to replace a number of ASICs in a calculator already produced by Busicom, the Intel 4004 was introduced to the...
calculator, likely after seeing the success of the simpler Intel 4004 used by Busicom in their business calculators. A small re-design followed, under the leadership...
Faggin, who also led the project during 1970-1971. Masatoshi Shima from Busicom defined the logic. In 1975 he started a group to work on large-scale integration...
MOS IC technology, with Intel engineers Marcian Hoff and Stan Mazor, and Busicom engineer Masatoshi Shima. With the arrival of CMOS microprocessors in 1975...
Busicom was in financial trouble and Intel arranged a deal that enabled them to sell the CPU as a product in exchange for lowering costs to Busicom....
minicomputer manufacturers (cf. BUNCH, Digital Equipment Corporation). In 1970 Busicom, a Japanese adding machine manufacturer, approached Intel and Mostek with...
calculator was the Busicom LE-120A "HANDY", the first single-chip calculator to be built, released in February 1971. The Busicom 141-PF desktop calculator...
Sweden Multo and Original-Odhner. In Russia Felix and in Japan Tiger and Busicom which, incidentally, was made famous because Intel created the first microprocessor...
640 bytes Program memory 4 KB (4096 B) Originally designed to be used in Busicom calculator MCS-4 family: 4004 – CPU 4001 – ROM & 4-bit Port 4002 – RAM...
at Intel, and released in 1971. Tadashi Sasaki and Masatoshi Shima at Busicom, a calculator manufacturer, had the initial insight that the CPU could...
by Marcian Hoff. His concept was part of an order by Japanese company Busicom for a desktop programmable electronic calculator, which Hoff wanted to...
MOS IC technology, with Intel engineers Marcian Hoff and Stan Mazor, and Busicom engineer Masatoshi Shima. With the arrival of CMOS microprocessors in 1975...
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