Expanded Library

1969 Moon Landing: The Code of the Apollo 11 Guidance Computer (AGC)

by Simon Allardice

For the 50th Anniversary of the Apollo 11 Moon Landing, take a tour of the code of the Apollo Guidance System.

What you'll learn

The Moon landings would have never happened without groundbreaking software development—programming the Apollo Guidance Computer, or AGC. The code of the AGC—the software that took us to the Moon—is now freely available to download, but this isn't like reading a listing in Java or C#. Here, Simon Allardice takes you on an entertaining tour of the code of the AGC. We'll go through the code, explore the unusual syntax of AGC Assembly, cover the ideas and unique terminology—like Colossus and Luminary, the DSKY, the infamous alarm codes 1201 and 1202, and what it means to Go To P00H.

About the author

Simon is a staff author at Pluralsight. With a 30-year background in programming and teaching, he obsesses on making complicated subjects accessible, memorable, and easier to learn. Since 2002, he's recorded dozens of popular and highly-rated training courses. His current focus is on iOS and computer science topics.

Ready to upskill? Get started