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en.wikipedia.org/wiki/Calculator

An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics.. The first solid-state electronic calculator was created in the early 1960s. Pocket-sized devices became available in the 1970s, especially after the Intel 4004, the first microprocessor, was developed by Intel for the Japanese calculator ...

www.reference.com/history/invented-first-calculator-3378af6ce6f5cebc

It was not until 1948 that a pocket-sized calculator was invented and came in the form of the Curta calculator. It was not until the 1960s and the advent of electronic devices that the electronic calculator came to be. ANITA (A New Inspiration To Arithmetic/Accounting) was the first all-electric desktop calculator and was released in 1961.

www.thecalculatorsite.com/articles/units/history-of-the-calculator.php

The first step was seen in 1961 with the arrival of ANITA (A New Inspiration To Arithmetic/Accounting). This was the world's first all-electronic desktop calculator and it was developed in Britain by Control Systems Ltd., marketed under its Bell Punch and Sumlock brands.

www.vintagecalculators.com/html/history_of_electronic_calculators.html

It used a CRT (cathode ray tube ) television tube - type of display and was also one of the first fully electronic calculators in the world. 1964 -- In March, Japan's Sony Corporation claims to perfect the world's first all-transistorized (no vacuum tube) desk-top electronic calculator.

www.quora.com/Who-is-the-inventor-of-the-calculator

The first solid state electronic calculator was created in the early 1960s. Pocket sized devices became available in the 1970s, especially after the first microprocessor, the intel 4004, developed by Intel for the Japanese calculator company Busicom. The original calculator was the abacus, developed in China in the 9th century.The young French mathematician Blaise Pascal (1623 - 1662) invented ...

www.ideafinder.com/history/inventions/handcalculator.htm

The hand-held pocket calculator was invented at Texas Instruments, Incorporated (TI) in 1966 by a development team which included Jerry D. Merryman, James H. Van Tassel and Jack St. Clair Kilby. In 1974 a basic patent for miniature electronic calculators has been issued to Texas Instruments Incorporated.

studysoupquestions.com/.../46889/when-was-the-first-electronic-calculator-invented

When was the first electronic calculator invented? was asked on May 31 2017. View the answer now.

www.thoughtco.com/history-of-calculators-1991652

William Seward Burroughs invented the first practical calculator. Read more about the history of calculators. ... Electronic Calculators . William Seward Burroughs (1857 – 1898): In 1885, Burroughs filed his first patent for a calculating machine. However, his 1892 patent was for an improved calculating machine with an added printer.

www.sharp-world.com/corporate/info/his/h_company/1964_1966

Research into downsizing calculators by replacing transistors with ICs (integrated circuits) resulted in creation of the world's first electronic calculator incorporating ICs (CS-31A). The weight, number of parts and price of the new product were almost half those of the first calculator Sharp put on the market.

www.vintagecalculators.com/html/ti_cal-tech1.html

(From their invention of the first portable prototype, to their supplying the industry with chips and other components in the early 1970s, to their marketing acumen in becoming a world leader in sales, Texas Instruments played a leading role in the birth and growth of IC-based electronic calculators.