Comprises:
- 1, Computers, Consolidated Engineering Corporation, correspondence, 1952-1953;
- 2, Computers Interference, Bell Telephones/Holden, correspondence, 1953;
- 3, Computers, Brush Electrical Engineering Co. Ltd, User Enquiries, correspondence, 1954-1955;
- 4, Computers, Matematikmaskinnamndens Sweden Related Projects, correspondence, 1953;
- 5, Computers, Powers-Samas Accounting Machines Ltd, correspondence, 1953-1956;
- 6, Computers, BBC, correspondence, 1953-55;
- 7, Computers, Related Projects, International Standards Electric Corporation (ISEC), correspondence, 1953-1954;
- 8, Computers, Related Projects, ISEC, patent specifications, 1948-1953;
- 9, Computers, Mellon Institute Reports, correspondence and reports, 1953-1954;
- 10,Computers, Mellon Institute Reports, correspondence, 1955-1957;
- 11, Computers, Mellon Institute Reports, reports, 1953-1956;
- 12, Computers, Mellon Institute Reports, reports, 1953-1956;
- 13, Computers, Mellon Institute, Specification, correspondence, 1954.