(SAGE) The computer system of the old US Norad air defence system. SAGE was ground-breaking in many ways, such as being one of the first very large software projects and the first real-time system.
MIT Lincoln Laboratory developed SAGE and MITRE Corporation was responsible for system engineering and implementation oversight.
http://togger.com/, http://jps.net/ethelen/sage.html, http://eskimo.com/%7Ewow-ray/sage28.html.
[Confirm? Dates? Connection with MIT Research Laboratory for Electronics?]