(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. , , . [Confirm? Dates? Connection with MIT Research Laboratory for Electronics?] (1999-12-16)