🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsРусский한국어中文日本語EntityQ1935523· pop 16· linked from 662 articlesSemi-Automatic Ground EnvironmentAlso known as SAGEhistoric computer networkOn the map22 mapped locationsAvailable in 14 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCatalanCroatianConnectionsNorth American Aerospace Defense CommandEntityMIT Lincoln LaboratoryEntityCategories1950s computers1950s in technology1950s in the United StatesComputer networksComputer-related introductions in 1958Computer systems of the United States Air ForceNorth American Aerospace Defense CommandVacuum tube computers