- 1Simon Lavington collection of historical computer documents (LAV)
c. 1945-2001, fonds - 2Documents relating to the general history of British-designed digital computers of the period, excluding Elliott, Manchester and Ferranti computers (LAV/1)
1947 – 1999, series - 3Material relating to UK manufacturers, including English Electric, Leo Computers, BTM, ICT, ICL, EMI, AEI/Metrovic, STC, Decca, Marconi (LAV/1/1)
1947 – 1974, sub-series - 4Material relating to English Electric computers (LAV/1/1/UK1)
1948 - 1956, sub-sub-series - 5Material relating to English Electric computers (LAV/1/1/UK2)
1959 - 1969, sub-sub-series - 6Material relating to Lyons, A D Booth, ARC, BTM, HEC, ICT and ICL computers (LAV/1/1/UK3)
1953 - 1974, sub-sub-series - 7Material relating to EMI, AEI and METROVIC, STC, DECCA and MARCONI computers (LAV/1/1/UK4)
1958 - 1974, sub-sub-series - 8General history: computer surveys, delivery information and statistical information (LAV/1/2)
1947 - 1999, sub-series - 9Documents relating mostly to UK computers, but also containing some USA and worldwide material (LAV/1/2/UK5)
1947 - 1970, sub-sub-series - 10Material including early NRDC history, early computer programming systems, and the Comprehensive Computer Catalogue of 1997 (LAV/1/2/UK6)
1949 - 1999, sub-sub-series - 11Material relating to historic computer conference proceedings and symposia (LAV/1/3)
1947 - 1953, sub-series - 12Material relating to computer conferences in Cambridge (1949) and Manchester (1951) (LAV/1/3/UK8)
1949 - 1951, sub-sub-series - 13Material relating to The NPL Computer Symposium (LAV/1/3/UK9)
1953-03, sub-sub-series - 14General and particular computer applications and obituaries (LAV/1/UK10)
1953 - 2010, sub-series - 15The Conference of Professors & Heads of Computing’s Computer Science Directory (LAV/1/UK7)
1997, sub-series