Doing some research on the early days of Unix, and have some question marks. Hope you can help me clarify:
Multics was designed by Bell, AT&T, MIT. Bell withdrew from the project and Ken Thompson (an employee at Bell) had set out to build an alternative. Also it is said the motivation was to run 'Space Travel', the game he was developing on a cheaper machine and that he looked for hardware to build it on.
This story sounds very entrepreneurial of Ken, pursuing his ideas even when Bell, his employer decided not to. How did the product of Ken's initiative came to be the property of AT&T? It is also said that later on Bell's Ken and Dennis Richie worked on additional parts like the file system, and other components that later became unix. Didn't Bell quit the project? How did AT&T got the rights to it all?