(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)