Comprises:
- B1, Miscellaneous correspondence of John M. Chapman, Systems Dept, Ferranti-Packard ICT Canadian subsidiary acquired from ferranti), c 1966-9. Some notes on the Ferranti-Packard Mini Processor are also contained in the file;
- B2, Chronological file of correspondence of John M. Chapman, 1974-81. Concerns sales and technical support for ICL computers.