CCATS Central Processor (Room 116 and 116B)
Three systems can be distinguished (A, B and C)
At the core of each system a mainframe UNIVAC 494. To this mainframe peripheral systems were connected: additional magnetic core memory units, disk drive units, tape units, line printers, card readers, teletype units, data adapters etc..
One of those three systems was sufficient to support an Apollo mission.
One mainframe was active, a second mainframe was in dynamic standby and did the same work in parallel with the primary mainframe but its output was not used to support the mission. A switch to the standby mainframe could be done swiftly in case the primary would fail. The third mainframe was kept in reserve or was used for simulations, to make preparations for the next upcoming Apollo mission.
The CCATS was located at the first floor of the Operations Wing of the Mission Control Center (MCC) in Houston)
(This MCC building had 3 wings: the Administrative Wing, the Lobby Wing and the Operations Wing)
The Operations Wing had 3 floors. In 1960's and 1970's there were two Mission Operations and Control Rooms, one MOCR at the second floor and the other MOCR at the third floor).
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