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The Sinclair Executive was the world's first "slimline" pocket calculator, and the first to be produced by Clive Sinclair's company Sinclair Radionics.Introduced in 1972, the calculator was produced in at least two versions with different keyboard markings; a variant called the Sinclair Executive Memory was introduced in 1973.
He produced the world's first slimline electronic pocket calculator (the Sinclair Executive) in 1972. Sinclair then moved into the production of home computers in 1980 with Sinclair Research Ltd , producing the Sinclair ZX80 (the UK's first mass-market home computer for less than £100) and in the early 1980s, the ZX81 , ZX Spectrum and the ...
The first American-made pocket-sized calculator, the Bowmar 901B (popularly termed The Bowmar Brain), measuring 5.2 by 3.0 by 1.5 inches (132 mm × 76 mm × 38 mm), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for US$240, while in August 1972 the four-function Sinclair Executive became the first ...
The C5 was the brainchild of multimillionaire English inventor Sir Clive Sinclair, who made his name creating the world’s first pocket calculator and pioneering the market for affordable home ...
In 1972 Sinclair released the world's first slim-line pocket calculator, the Sinclair Executive, for £79.95. The calculator only included basic maths functions, and the LED display required much power. It is often credited as being the world's first attractively styled calculator that did not require mains power to be used like prior calculators.
1972: The Sinclair Executive, the world's first small electronic pocket calculator, produced by Sir Clive Sinclair (1940–2021). 1979: The first laptop computer, the GRiD Compass, designed by Bill Moggridge (1943–2012). 1979: Digital audio player (MP3 Player) invented by Kane Kramer (born 1956). His first investor was Sir Paul McCartney.
The Sinclair Executive "slimline" pocket calculator (1972) Clive Sinclair, a former radio kit salesman, established his first company, Sinclair Radionics , in 1962. [ 17 ] The company made its name producing a wide range of cheap electronics aimed at the hobbyist market.
Was the first scientific calculator to fly in space in 1973. [5] HP-35 calculators were carried on the Skylab 3 and Skylab 4 flights, between July 1973 and February 1974. [6] Is the first pocket calculator with a numeric range that covered 200 decades (more precise 199, ±10 ±99). [5]