Timeline of computing 2400 BC–1949

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This article presents a timeline of events in the history of computing hardware: from prehistory until 1949. For a narrative explaining the overall developments, see the related history of computers and history of computer science.

Contents

Prehistory

The very first calculating devices are believed to have been tally sticks. The earliest known to modern archeology is the Lebombo bone, from 35,000 BC. Earlier marked sticks exist, but it is not clear from the spacing of their marks that they were used for counting (although, of course, they may have been). The Ishango bone from 18,000 BC possibly indicates that even at this early date material objects (in this case an animal bone) were used for simple arithmetical operations, and may even include evidence of some knowledge of prime numbers, although this is disputed.[1]

2400 BC–1641

1642-1850

1851–1899

1900–1939

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