Uploaded July 2026 | Updated September 2026, 3 weeks ago

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ITS is the Incompatible Timesharing System. Academics at the MIT AI Lab didn't like earlier incarnations of time-sharing so they invented their own.

Lars Brinkhoff and Oscar Vermeulen explain and demonstrate this segment of Computing history which they've worked to bring back in simulation for everyone to enjoy.

Find out more about them and the project at:
https://obsolescence.dev/

Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: jane-st.co/computerphile

This video was filmed and edited by Sean Riley.

Computerphile is a sister project to Brady Haran's Numberphile. More at bradyharanblog.com