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Developer General Motors, North American Aviation
Working state Discontinued
Initial release 1956
Marketing target Batch processing
Available in English
Platforms IBM 704
History of IBM mainframe operating systems

The GM-NAA I/O input/output system of General Motors and North American Aviation was the first operating system for the IBM 704 computer.[1][2]

It was created in 1956 by Robert L. Patrick of General Motors Research and Owen Mock of North American Aviation.[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 (batch processing). It was formed of shared routines to the programs that provided common access to the input/output devices. Some version of the system was used in about forty 704 installations.[1]

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  1. ^ a b c "Timeline of Computer History: 1956: Software". Computer History Museum. Retrieved 2007-09-04. 
  2. ^ Ryckman, George F.; , "17. The IBM 701 Computer at the General Motors Research Laboratories," Annals of the History of Computing , vol.5, no.2, pp.210-212, April–June 1983 doi: 10.1109/MAHC.1983.10026 URL:

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