About
SAGE
Semi-Automatic Ground Environment Air Defense System
The Semi-Automatic Ground Environment, or SAGE, was the nation's first air defense system and was the impetus for the establishment of Lincoln Laboratory. The sections linked to the images below describe the history of this seminal, large-scale system-engineering project, and the role that it had in shaping the culture of Lincoln Laboratory as it exists today.
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| Lincoln Laboratory Origins | SAGE Air Defense System | |
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| Early Digital Computing | Cape Cod SAGE Prototype | Early-Warning Radars |
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| SAGE Transition | Reflections on SAGE | New Callings |
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