The computer room with a lonely looking Bryan Sullivan in the middle, September
1971 .

On either side of him are the keyboards, paper tape punches and readers, behind
him are the teletype printers.

Along the back from the left is the heart of the computer system; a Univac
expanded memory unit and a Univac 642B computer. My wide angle lens just could
not fit a 642B computer on the left into the picture. The two 642B computers
were identical, one for commands to the spacecraft and one for the telemetry to
be sent to Goddard or Mission Control at Houston.

Next in line are four magnetic tape handlers, and on the end is a Univac 1218
computer for processing the antenna pointing commands, which had to be manually
taken by reel tape to the Antenna Position Programmer (APP) in the USB area.

Photo and notes: Hamish Lindsay. 2020 updated scan: Colin Mackellar.