Which is the first operating systems?

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senthil

  • Jul 29th, 2006
 

dos

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Nishi

  • Aug 12th, 2006
 

OS/2

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Ayyanar.S

  • Aug 25th, 2006
 

DOS is the first operating system

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ramamohan.u

  • Sep 2nd, 2006
 

os/2 is the First Operating System.

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sekarmca48

  • Sep 14th, 2006
 

dos

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Jerry Gallagher

  • Oct 4th, 2006
 

I think Ctss was actually first, it was released in 1961. If I am wrong let me know. ~Jerry

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neo

  • Feb 12th, 2007
 

DOS is First OS

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sharmishta

  • May 30th, 2007
 

"Multics" is the first os

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hari19784

  • Sep 15th, 2007
 

The GM-NAA I/O input/output system of General Motors and North American Aviation was the first operating system in the history of computer science.[1]

It was created in 1956 by Bob Patrick of General Motors and Owen Mock of North American Aviation for the IBM 704 computer.[1] It was based on a system monitor created in 1955 by programmers of General Motors for its IBM 701.

The main function of GM-NAA I/O was to automatically execute a new program once the one that was being executed had finished. It was formed of shared routines to the programs that provided common access to the of input/output devices.

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