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Sharp QT-8D Micro Compet front view. The Sharp QT-8D Micro Compet, a small electronic desktop calculator, was the first mass-produced calculator to have its logic circuitry entirely implemented with LSI (large-scale integration) integrated circuits (ICs) based on MOS (metal-oxide-semiconductor) technology.
Pages in category "Sharp Corporation calculators" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. E. Sharp EL-8;
Pages in category "Sharp programmable calculators" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. E.
The Sharp QT-8B Micro Compet, a portable electronic desktop calculator, was the first mass-produced calculator to be battery-powered. [1] Introduced in mid-1970, it was based on its immediate predecessor, the QT-8D introduced in late 1969, but it replaced the QT-8D's integrated power supply with a rechargeable battery pack. [1]
30th Anniversary of the Calculator – From Sharp's web presentation of its history; including a picture of the CS-10A desktop calculator; The Museum of HP calculators (Slide Rules and Mechanical Calculators section) Microprocessor and single chip calculator history; foundations in Glenrothes, Scotland
The Sharp EL-8, also known as the ELSI-8, [1] was one of the earliest mass-produced hand-held electronic calculators [1] and the first hand-held calculator to be made by Sharp. Introduced around the start of 1971, [ note 1 ] it was based on Sharp's preceding QT-8D and QT-8B compact desktop calculators and used the same logic circuits, but it ...