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21 nov 1946 ano - Trackball

Descrição:

The trackball, a pointing device, was invented in 1946 and patented in 1947 by Ralph Benjamin as part of a radar plotting system

Adicionado na linha do tempo:

Computer mice

Byjoe
29 set 2017
0
0
633

Data:

21 nov 1946 ano
Agora
~ 78 years ago
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