| Developer | General Motors, North American Aviation |
|---|---|
| Working state | Discontinued |
| Initial release | 1956 |
| Marketing target | Batch processing |
| Available in | English |
| Platforms | IBM 704 |
| License | Proprietary |
| Preceded by | General Motors Operating System |
| 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]