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5000 BCE
Abacus
Invented by the Chinese -
Slide ruler
Invented by William Oughtred -
Bomba codebreaking computer
Invented by Alan Turing to crack the enigma code. -
Electronic calculator
Worlds first electronic calculator -
Kenbak-1
Worlds first personal electronic computer. -
Motorola phone
This was the first handheld portable phone -
Altair 8800
One of the first small personal desktop computers. -
Osborne 1
One of the first commercial portable computers.