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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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21 nov 1946 año - Trackball

Descripción:

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

Añadido al timeline:

Computer mice

Byjoe
29 sep 2017
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0
633

fecha:

21 nov 1946 año
Ahora mismo
~ 78 years ago
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