Comprises:
- 1, Computer Components, Manchester University, includes reports, 1952-1955;
- 2, Computer Components, Manchester University, 1955-1957;
- 3, Computers, Accessories (Magnetic Recording Heads) Research and Development, 1955;
- 4, Computers Mark II, Manchester University/Ferranti, 1953-1955;
- 5, Computers Mark II, Ferranti Specification, 1955;
- 6, Computers Mark 2, Manchester University: Ferranti Sales, 1954-1955;
- 7, Computers, Research Development Contract, Ferranti Ltd, 1954-1955;
- 8, Computers FPCI, Sales, 1954-1958;
- 9, Computers, Accessories, Epsylon Research Development Co, 1954-1955;
- 10, Computers Accessories, MSS Recording Co, Development, Tape, 1953-1954.