On Guard! The Story of SAGE (1956)
  
This film talks about SAGE, one of the earliest computers
used for the defense of the United States during the Cold
War. SAGE (Semi-Automatic Ground Environment) was a heavily
computerized early warning system designed to guard against
enemy aircraft. was actively developed by IBM and fills a
large room with its processors and associated equipment. By
today's standards, it was extremely primitive - but it worked!
And more importantly, the research that developed these early
military computers led to the dawning of the modern computer
age.
Producer: IBM Corporation, Military Products Division
Audio/Visual: Sound, Color
Run time: 12:15
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