![WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD](https://wcsa.world/Userfiles/Upload/images/historyofmouse.jpg)
WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD
![WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD](http://wcsa.world/Userfiles/Upload/images/three_mice_new_yorker.png)
WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD
![WORLDKINGS - Old Events - April 27, 2018 - Xerox PARC introduces the computer mouse in 1981 - Worldkings - World Records Union WORLDKINGS - Old Events - April 27, 2018 - Xerox PARC introduces the computer mouse in 1981 - Worldkings - World Records Union](http://wcsa.world/Userfiles/Upload/images/entrada-xerox-parc.jpg)
WORLDKINGS - Old Events - April 27, 2018 - Xerox PARC introduces the computer mouse in 1981 - Worldkings - World Records Union
![WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD](http://wcsa.world/Userfiles/Upload/images/mouse.jpeg)
WCSA - On This Day - April 27, 2021 - Xerox PARC introduces the computer mouse, in 1981 - WCSA.WORLD
![Science Museum on Twitter: "#OnThisDay in 1981, Xerox PARC introduced the computer mouse. Pictured here is a replica of the original computer mouse prototype designed by Douglas Engelbart in 1963 from our Science Museum on Twitter: "#OnThisDay in 1981, Xerox PARC introduced the computer mouse. Pictured here is a replica of the original computer mouse prototype designed by Douglas Engelbart in 1963 from our](https://pbs.twimg.com/media/D5JeqHPXkAE5K2h.jpg)