Fernando Corbató, whose work on Compatible Time-Sharing System (CTSS) in the 1960s helped pave the way for the personal computer, as well as the computer password, died at the age of 93.
Compatible Time-sharing System: An Overview of CTSS
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Timesharing | PDP-1 Restoration Project | Computer History Museum
4.1.5 Multiprogramming and Time Sharing System 4.1.6 Explain Deadlock
Time-sharing - Wikipedia
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What is time sharing operating system (with example)? - Quora
Difference between Time-sharing and Multi-tasking Operating Systems » Network Interview
How 1960s Dartmouth computing pioneers gave rise to the macho tech culture we see today.
Sharing the Computer: How the Dartmouth Time-Sharing System Made Computing (More) Accessible