In the 1960s, the Massachusetts Institute of Technology, AT&T Bell Labs, and General Electric worked on an experimental operating system called Multics (Multiplexed Information and Computing Service), which was designed to run on the GE-645 mainframe computer. (Eventually Multics became a commercial product, although sales did not meet expectations). Multics was an interactive operating system with many novel capabilities, including enhanced security.
AT&T Bell Labs pulled out of the Multics project and deployed its resources elsewhere. One of the developers on the Bell Labs team, Ken Thompson, continued to develop for the GE-645 mainframe, and wrote a game for that computer called Space Travel.[1] However, he found that the game was too slow on the GE machine and was expensive, costing $75 per execution in scarce computing time.[2]
Thompson thus re-wrote the game in assembly language for Digital Equipment Corporation's PDP-7 with help from Dennis Ritchie. This experience, combined with his work on the Multics project, led Thompson to start a new operating system for the PDP-7. Thompson and Ritchie led a team of developers, including Rudd Canaday, at Bell Labs developing a file system as well as the new multi-tasking operating system itself. They included a command line interpreter and some small utility programs.
1970s
In the 1970s the project was named Unics, and eventually could support two simultaneous users. Brian Kernighan invented this name as a contrast to Multics; the spelling was later changed to Unix
Pořád v tomto popisu z Wikipedie nemohu najít nic o padesátých letech. A jestli myslíte, že když Unix má některé rysy společné s prvními OS, že to opravňuje k tvrzení o době vzniku, tak to skutečně nefunguje. V tom případě mohu tvrdit, že Linux se používá také od padesátých let. Vždyť se přece dřív jmenoval Unix a předtím se mu říkalo ještě jinak.

