GM-NAA I/O System Introduced

Name: GM-NAA I/O System Introduced
Start: 1955-01-01
Location: General Motors Research Labs, Warren, Michigan, USA

The first 'operating system' in a rudimentary sense, developed for the IBM 704. It handled batch processing, automating the loading and execution of programs.

Significance

Pioneered the concept of a software layer managing job transitions, drastically improving the efficiency of early mainframe usage by eliminating manual intervention between jobs.

Key facts

Date: 1955-01-01
Type: invention
Location: General Motors Research Labs, Warren, Michigan, USA