Computing by Javier Garay Morales https://padlet.com/javiere_garay/uy9hczz3ssbz The greatest innovation en-us 2018-11-02 14:27:54 UTC 2025-12-11 14:55:21 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Watchclock.png Abacus. javiere_garay https://padlet.com/javiere_garay/uy9hczz3ssbz/wish/299813104 The abacus is possibly the first mechanical accounting device in history. It is about 5,000 years old.

]]> 2018-11-02 14:43:33 UTC https://padlet.com/javiere_garay/uy9hczz3ssbz/wish/299813104 javiere_garay https://padlet.com/javiere_garay/uy9hczz3ssbz/wish/299830849 2018-11-02 15:10:49 UTC https://padlet.com/javiere_garay/uy9hczz3ssbz/wish/299830849