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4003, 10-bit shift register. 4004, 4-bit central processing unit (CPU) (the microprocessor) with a maximum clock speed of 750 kHz. Complete 4004 chip-sets were sent to Busicom early in 1971 and by March Shima had built a working 141-PF calculator.
- Busicom 141-Pf
Busicom 141-PF / NCR 18-36. Printout is 15 digits, using a...
- Rockwell 920
See also the Busicom 141-PF which uses the early Intel 4004...
- Busicom Le-120A "Handy"
Busicom LE-120A "HANDY-LE" Distinctive features: The first...
- Busicom and Broughtons
Busicom LE-120A "HANDY", the first truly pocket-sized...
- Old Notes and Notices
Nat Semi Watch Photo . I finally found the old ad that has...
- Sperry Remington Rand Calcs
Original article from The International Calculator...
- Busicom 141-Pf
- Nippon Calculating Machine Corporation, Ltd
- Broughtons of Bristol
- External Links
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.
The 180-mil-square [0.18 inches-square (4.6 mm-square)] chip contains the logic for a four function 12-digit calculator - more than 2,100 transistors in 360 gates plus 160 flip-flops. Its promise of lower labor costs means a giant step toward a calculator for the consumer market. ... ...
Oct 31, 2023 · A pet microchip contains information about the pet and its owner’s identity. Specifically, the scanner will bring up the identification number of the chip, which shelters can then use to call the manufacturer. Pet microchip manufacturers keep registries of information about their clients.
Busicom 141-PF / NCR 18-36. Printout is 15 digits, using a Shinshu Seiki (later to become Epson) type 102 line printer. The line printer has all the numbers required in all the printing columns in raised type around a constantly rotating drum just behind the paper tape.
The Busicom was one of the very first truly pocket-sized electronic calculators. These brought together all the needed components for later handheld computers; processor, display, keys, battery, and memory.
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Nov 8, 2023 · What is a microchip for dogs & how does it work? Why you should consider a GPS tracker along with a microchip; Where do they put the microchip in dogs? Dog microchipping FAQs: How do vets microchip a dog? How long does it take to microchip a dog? How much does it cost to microchip a dog? Where can I get my dog microchipped?
