(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 ...

When Apollo 11 touched down in the Sea of Tranquility on July 20, 1969, it was more than a triumph of the human spirit, it was also the story of a cybernetic wonder called the Apollo Guidance Computer ...

Your doorbell today may have the same computing power as was on the Apollo spacecraft, but can it fly you to the moon? When you purchase through links on our site, we may earn an affiliate commission.

Editor's Note: This article is part of a series reflecting on the Apollo 11 mission, 50 years later. Without the computers on board the Apollo spacecraft, there would have been no moon landing, no ...