In pictures: The (mostly) cool history of the IBM ...
Here we see the IBM computing and data processing system at NASA’s Manned Spacecraft Center—now called the Lyndon B. Johnson Space Center—that collected, processed and sent to Mission Control information to direct every phase of an Apollo mission. The RTCC was so fast, there was virtually no time between receiving and solving a computing problem. Initially, IBM 7094-11 computers were used in the RTCC. Later, IBM System/360 Model 75J mainframes, and peripheral storage and processing equipment were used, according to IBM.
In pictures: The (mostly) cool history of the IBM mainframe