[John Smith in the OCCS computer room] National Library of Medicine (U.S.). Office of Computer and Communications Systems. Libraries, Medical Library Automation Computers, Mainframe John Smith types in computer commands to be performed and processed by magnetic tape in the OCCS computer room. Produced: [between 1960 and 1969?] Photographs Still image 1 photograph : 21 x 26 cm black and white nlm:nlmuid-101648148-img 101648148 http://resource.nlm.nih.gov/101648148 IHM: A033503 English The National Library of Medicine believes this item to be in the public domain: https://creativecommons.org/publicdomain/mark/1.0/