Margaret Hamilton's Apollo code stack, 1969. US computer scientist Margaret Hamilton (born 1936) standing next to a stack of Apollo Guidance Computer source code. The papers are printouts of the software code developed by her and the team that she was in charge of that developed the lunar module (LM) and command module (CM) on-board flight software for the Apollo missions to the Moon. The most famous Apollo mission was Apollo 11, which achieved the first landing by humans on the Moon on 20 July 1969. Photographed in 1969, at the Instrumentation Laboratory (later Draper Laboratory) at the Massachusetts Institute of Technology (MIT), Massachusetts, USA.