#chording

2 bookmarks tagged with #chording · RSS Feed · ← All Tags

A USB interface to the "Mother of All Demos" keyset

https://www.righto.com/2025/03/mother-of-all-demos-usb-keyset-interface.html
Engelbart's demo also featured an input device known as the keyset, but unlike his other innovations, the keyset failed to catch on. The 5-finger keyset lets you type without moving your hand, entering characters by pressing multiple keys simultaneously as a chord. Christina Englebart, his daughter, loaned one of Engelbart's keysets to me. I constructed an interface to connect the keyset to USB, so that it can be used with a modern computer. The video below shows me typing with the keyset, using the mouse buttons to select upper case and special characters.