History of computing hardware

Parts from four early computers, 1962. From left to right: ENIAC board, EDVAC board, ORDVAC board, and BRLESC-I board, showing the trend toward miniaturization.

Suanpan (the number represented on this abacus is 6,302,715,408)

A set of John Napier's calculating tables from around 1680

The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers.

Before the 20th century, most calculations were done by humans. Early mechanical tools to help humans with digital calculations were called "calculating machines", by proprietary names, or even as they are now, calculators. The machine operator was called the computer.

单词	Computer development
释义	Computer development 原声例句朗文OCLM-01单词 There have been significant computer developments during the last decade. 【development】近十年来计算机有了显著的发展。英语百科 History of computing hardware The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers. Before the 20th century, most calculations were done by humans. Early mechanical tools to help humans with digital calculations were called "calculating machines", by proprietary names, or even as they are now, calculators. The machine operator was called the computer.
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Computer development

History of computing hardware