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, there were at least two different versions of the Sinclair Executive, with different keyboard markings, and another called the Sinclair Executive Memory, introduced in 1973.
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| - Sinclair Executive (it)
- Sinclair Executive (en)
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| - Sinclair Executive fu la prima calcolatrice tascabile . Presentata nell'Agosto 1972 da Clive Sinclair costava 79,95 sterline IVA esclusa. (it)
- 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, there were at least two different versions of the Sinclair Executive, with different keyboard markings, and another called the Sinclair Executive Memory, introduced in 1973. (en)
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| - Sinclair Executive Type 1 (en)
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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, there were at least two different versions of the Sinclair Executive, with different keyboard markings, and another called the Sinclair Executive Memory, introduced in 1973. Its small size was made possible by pulsing the current to the Texas Instruments TMS1802 "calculator on a chip" integrated circuit, reducing the power consumption by a factor of more than 10. The Executive was highly successful, making £1.8 million of profit for Sinclair and winning a Design Council Award for Electronics. (en)
- Sinclair Executive fu la prima calcolatrice tascabile . Presentata nell'Agosto 1972 da Clive Sinclair costava 79,95 sterline IVA esclusa. (it)
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| - Texas Instruments TMS1802NC (en)
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