Semi-Automatic Ground Environment


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Semi-Automatic Ground Environment

(project)
(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.

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For a quarter century, from the late 1950s to the early 1980s, the remarkably complex Semi-Automatic Ground Environment (SAGE) system continuously surveyed continental air space to detect, identify, and destroy any enemy aircraft attempting to attack North America.
Issues with software complexity in highly automated systems had been a common concern among developers since the early days with the Air Force's semi-automatic ground environment (SAGE).

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