You might mean talk: https://en.wikipedia.org/wiki/Talk_(software) https://en.wikipedia.org/wiki/Talk_(software) We used Unix machines in that multi-user way i

You might mean talk: https://en.wikipedia.org/wiki/Talk_(software) https://en.wikipedia.org/wiki/Talk_(software) We used Unix machines in that multi-user way in the 1990s at university. The benefits were similar to the Cloud today: You could log on from everywhere and have your familiar environment and data there. Thanks to NFS, your files could be the same between different machines.