The track-ball – an ancestor of the computer mouse The computer mouse was not invented until the 1960s, but it has many similarities with the trackball created by the British scientist and electrical engineer Ralph Benjamin for radar plotting in 1946. The trackball is therefore commonly seen as an ancestor of the computer mouse. It was invented for a fire-control radar plotting system named The Comprehensive Display System (CDS) while Benjamin was working for the British Royal Navy Scientific Service. Benjamin´s project originally used a joystick, and Benjamin designed the track-ball (he called it a roller ball) as a more elegant and functional solution. The device was patented in 1947…
Antique office supplies