Apollo 11’s 4th Crew Member: A Ground-Breaking, 70 Pound Computer

(CBS) – On July 6, 1969, Apollo 11 lifted off with its sight set on the moon. The crew consisted of Neil Armstrong, Buzz Aldrin and Michael Collins, but there was a crucial “fourth crew member” on board: the Apollo Guidance Computer or AGC.
“The Apollo Guidance computer was the most intricate and complex control computer and navigation computer that existed,” said Bob Zagrodnick, who managed the AGC project.
The computer was fairly compact for its time. It weighed 7