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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.
- Nippon Calculating Machine Corporation, Ltd
- Broughtons of Bristol
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History
The Nippon Calculating Machine Corp was incorporated in 1945 and changed its name in 1967 to Business Computer Corporation, Busicom. Due to a recession in Japan in 1974, Busicom became the first major Japanese company in the calculator industry to fail. Originally, they made Odhner type mechanical calculators and then moved on to electronic calculators always using state of the art designs. They made the first calculator with a microprocessor for their top of the line machinesand they were th...
Microprocessor
In order to limit production cost, Busicom wanted to design a calculator engine that would be based on a few integrated circuits (ICs), containing some ROMs and shift registers and that could be adapted to a broad range of calculators by just changing the ROM IC chips. Busicom's engineers came up with a design that required 12 ICs. In April 1968, engineer Masatoshi Shima was tasked with designing a special-purpose LSI chipset, along with his supervisor Tadashi Tanba, for use in the Busicom 14...
Broughtons of Bristol is a company selling and maintaining a broad line of business machines. They used to buy most of their equipment from Busicom and bought their trade name when they went bankrupt in 1974.
Nov 16, 2021 · Part 1 of this article describes how Busicom chose Intel to develop and manufacture the world’s first commercial microprocessor. Part 2 describes how the Intel 4004 microprocessor was created and brought to market.
Nov 15, 2023 · The 4004 was primarily used in calculators, the first being the Busicom 141-PF. In fact, it was Busicom that actually developed the design of what would become the Intel 4004. Busicom approached Intel to help them finalize the design and manufacture their “calculator engine”.
Dec 16, 2014 · The story of the chip really begins in 1969 when a Japanese company called the Nippon Calculating Machine Corporation (but known as Busicom, after the name of its calculators) contracted with...
- Michael J. Miller
- Former Editor in Chief
Jul 18, 2008 · Dr Masatoshi Shima was one of the Busicom team which went over to Santa Clara in June 1969 to commission Intel to produce a set of chips for a calculator. Shima wrote the functional description of the 4004 chip-set’s CPU, and designed its logic.
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Busicom's engineers came up with a design that required 12 ICs [1]: 263–265 and asked Intel, a company founded one year earlier in 1968 for the purpose of making solid state random-access memory (RAM), to finalize and manufacture their calculator engine.
