"Our new operating system is called the Virtual Time Operating System (VTOS). While virtual memory systems make the computer's memory the virtual resource, VTOS does the same thing with CPU processing time.
"The result is that the computer can run an unlimited number of jobs, all at the same time. Like the virtual memory system, which actually keeps part of memory on disk, VTOS has to play tricks to achieve its goals. Although all of your jobs seem to be running right now, some of them are actually running next week."
-- Tony Karp, "Babbage - The language of the future", Datamation, September 1981
[Happy birthday to
xpioti!]