Pocket sized devices became available in the 1970s, especially after the invention of the microprocessor developed by Intel for the Japanese calculator company Busicom.

This led to alliances between Japanese calculator manufacturers and U. S. semiconductor companies: Canon Inc. with Texas Instruments, Hayakawa Electric ( later known as Sharp Corporation ) with North-American Rockwell Microelectronics, Busicom with Mostek and Intel, and General Instrument with Sanyo.

Six months later, Seiko approached Intel expressing an interest in using the 1201 in a scientific calculator, likely after seeing the success of the simpler Intel 4004 used by Busicom in their business calculators.

The chief designers of the chip were Federico Faggin and Ted Hoff of Intel, and Masatoshi Shima of Busicom ( later of ZiLOG, founded by Faggin ).

The Japanese company Busicom had designed their own special purpose LSI chipset for use in their Busicom 141-PF calculator with integrated printer and commissioned Intel to develop it for production.

In 1970 he joined Intel where Marcian ( Ted ) Hoff, with Stanley Mazor and Intel's customer Masatoshi Shima, had formulated a new architecture for a family of Busicom calculators in 1969.

When Busicom decided to use LSI circuits in their calculator products, they approached the American companies Mostek and Intel for manufacturing help.

The job was given to Intel, who back then was more of a memory company and had facilities to manufacture the high density silicon gate MOS chip Busicom required.

In 1970 Busicom, a Japanese adding machine manufacturer, approached Intel and Mostek with a proposal to introduce a new electronic calculator line.

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 was a Japanese company that owned the rights to the first microprocessor, the Intel 4004, which they created in partnership with Intel in 1970.

Busicom owned the exclusive rights to the design and its components in 1970 but shared them with Intel in 1971.

This one-of-a-kind prototype was a personal present by Busicom ’ s president Mr. Yoshio Kojima to Federico Faggin for his successful leadership of the design and development of the 4004 and three other memory and I / O chips ( the MCS-4 chipset ).

Faggin also convinced Bob Noyce to negotiate the exclusivity clause, in order to open the marketing of the 4004 which originally was a custom design for Busicom.

Busicom used the Mostek design in a new handheld line, the Busicom LE-120A, which went on the market in 1971 and was the smallest calculator available for some time.

Ted Hoff, head of the Application Research Department, contributed only the architectural proposal for Busicom working with Stanley Mazor in 1969, then he moved on to other projects.

It was developed for a Japanese calculator company, Busicom, as an alternative to hardwired circuitry, but computers were developed around it, with much of their processing abilities provided by one small microprocessor chip.

The 4004 was a member of a family of 4 chips designed specifically for Busicom, a Japanese calculator manufacturer.

With poor prospects for employment in the field of chemistry, he went to work for Busicom, a business calculator manufacturer.

Its introduction launched the development of mechanical calculators in Europe first and then all over the world, development which culminated, three centuries later, in the invention of the microprocessor developed for a Busicom calculator in 1971 ; the microprocessor is now at the heart of all computers and embedded systems.

The first truly pocket-sized electronic calculator was the Busicom LE-120A " HANDY ", which was marketed early in 1971.

Busicom introduced the Busicom LE-120A " HANDY " calculator, the first pocket-sized calculator and the first with an LED display, and announced the Busicom LC with LCD display.

Shima designed the Busicom calculator firmware and assisted Faggin during the first six months of the implementation.

The first commercial product to use a microprocessor was the Busicom calculator 141-PF.

The CHM collection catalog shows pictures of the engineering prototype of the Busicom 141-PF desktop calculator.

In 1969 Honeywell asked Intel to make a DRAM using a 3-transistor cell that they had developed.

When the IBM Personal Computer was being developed, DR was asked to supply a version of CP / M written for the Intel 8086 microprocessor as the standard operating system for the PC, which used the code-compatible Intel 8088 chip.

I asked the same questions inside the launch-control rooms of an Atlas missile base in Wyoming, where officers who wear sidearms are manning the `` commit buttons '' that could start a war -- accidentally or by design -- and in the command centers where other pistol-packing men could give orders to push such buttons.

Michelangelo hurried to Sangallo's solitary bachelor room with his sketches, asked the architect to design a stand which would simulate the seated Madonna.

So we asked such men in major companies in the design field to offer their opinions on the `` dual-road-up '' problem -- and more importantly -- their solutions.

While his building was still under construction late in 1854, Bunsen suggested certain design principles to the university's mechanic, Peter Desaga, and asked him to construct a prototype.

The film was considered so weak that Kelly was asked to design and insert a series of dance routines, and his ability to carry off such assignments was noticed.

With a background in architecture, Remey was asked to design the Australian and Ugandan Bahá ' í House of Worship which still stand today and are the mother temples for Australasia and Africa respectively.

The steamboat company approached James Meadows Rendel in 1832 and asked him to design a steam-powered floating bridge for the route.

1269 ), Kublai Khan asked a Tibetan monk, Drogön Chögyal Phagpa, to design a new script for use by the whole empire.

Its first representation was in 1947, when magazine co-founder Hyman Goldsmith asked artist Martyl Langsdorf ( wife of Manhattan Project research associate and Szilárd petition signatory Alexander Langsdorf, Jr .) to design a cover for the magazine's June 1947 issue.

Dr. Jerome Hunsaker was asked to develop a theory of airship design, Lt. John H. Towers returned from Europe having inspected British designs, the Navy sought bids for 16 blimps from American manufacturers.

Wren's first architectural project was the chapel of Pembroke College in Cambridge, which his uncle, the Bishop of Ely, asked him to design in 1663.

That same year, Burgee negotiated a lesser role in the partnership for Johnson, as a design consultant, and in 1988 he asked Ahuja to leave.

Stone asked Lipper to design a six-week course that would expose Charlie Sheen to a cross section of young Wall Street business people.

In July, Richardson sent Hill a complete " design " of the story, and asked Hill to try again, but Hill responded, " It is impossible, after the wonders you have shown in Pamela, to question your infallible success in this new, natural, attempt " and that " you must give me leave to be astonished, when you tell me that you have finished it already ".

To address this, Seraphim Masi of Washington D. C. was asked to design a larger seal specifically for treaties.

In discussing the study of target demographics, Mizuguchi related the story of designing Space Channel 5, which was at first a vague assignment from Sega that asked only that Mizuguchi design a game with a broad enough appeal to draw in even casual female gamers.

The American musician and artist La Monte Young had been asked to guest-edit an issue of a literary journal, Beatitude East, and asked George Maciunas, a trained graphic designer, for help with the layout ; Maciunas supplied the paper, design, and some money for publishing of the anthology, which contained a more or less arbitrary association of New York avant-garde artists at that time.

They asked Humphry Repton to design Sheringham Hall.

In 1844, having won the architectural competition to design the new Palace of Westminster, Barry asked Pugin to supply detailed designs for the interior of the new building, including stained glass, metalwork, wood carving, upholstery, furniture and a royal throne.

Poor maintenance of electrical equipment, fire doors and other features has caused widespread fire hazards and residents are asked to pay part of the cost of putting this right even though the problem is due to poor maintenance and errors in design.

Julie Nicoletta describes the circimstances: ' Pershing County officials approached Frederic Joseph DeLongchamps, by then the architect of six Nevada courthouses, and asked for a design that would be low in price but distinctive in appearance.

Finally Dr. Konrad, designing the engine for the Rheintochter missile, was asked to modify his design for the Enzian.

Aeronautical engineer Corradino D ' Ascanio, responsible for the design and construction of the first modern helicopter by Agusta, was asked by Enrico Piaggio to create a simple, robust and affordable vehicle.

Before the opening of the Sydney Harbour Bridge in 1932 the Government of Queensland asked John Bradfield to design a new bridge in Brisbane.