Computer mouse
device · 1964 · Digital age
Engelbart’s pointing device.
Inventor: Douglas Engelbart.
What it is made of
- LED — has part. An optical mouse.
- Image sensor — has part. The motion sensor is a tiny camera.
Principles and materials it uses
- Plastic — is made of. The case is plastic.
Where it is used
- Personal computer — is part of. A mouse.
- Graphical user interface — is used in. The pointer is controlled with a mouse.
History: what it evolved from and what it influenced
- Trackball — evolved from. Ball mice grew out of trackballs.
Things built in a similar way
- Trackball — works like. An upside-down mouse.