| 54630 The Layman's Guide to LEO, Chapter 1, David Caminer's copy |
Document |
1952 |
| 55876 LEO Chronicle (with 1955-61 extension) |
Document |
Unknown |
| 64070 Photo of Ernest Lenaerts, D.W. Boston and Michael Underwood with ICL speech recognizer |
Photograph |
1969 |
| 64071 Second photo of Ernest Lenaerts, D.W. Boston and Michael Underwood with ICL speech recognizer |
Photograph |
1969 |
| 64072 Talking to The Computer - Article in New Scientist, Dec 1960 |
Document |
Dec 1969 |
| Lenaerts Notebook 3 (6 Jul - 9 Oct 1950) |
Document |
6 Jul 1950 |
| 64073 Improvements to Computer Efficiency by Attention to Human Factors, c1970-71 |
Document |
1970 |
| Lenaerts Notebook 4 (9 Oct 1950 - 26 Jan 1951) |
Document |
9 Oct 1950 |
| 63070 Raytheon Computers |
Document |
21 Dec 1950 |
| 64074 Michael Underwood 'Talking to the Computer - Postscript' |
Document |
Jun 2021 |
| Lenaerts Notebook 5 (29 Jan - 7 Mar 1951) |
Document |
29 Jan 1951 |
| Lenaerts Notebook 6 (7 Mar - 23 May 1951) |
Document |
7 Mar 1951 |
| Lenaerts Notebook 7 (25 May - 16 Oct 1951) |
Document |
25 May 1951 |
| Lenaerts Notebook 8 (18 Oct 1951 - 31 Jan 1952) |
Document |
18 Oct 1951 |
| Lenaerts Notebook 9 (1 Feb - 26 May 1952) |
Document |
1 Feb 1952 |
| 30th November 1951 - a momentous day! |
Blog Post |
16 Nov 2021 |
| 74834 Reunion Memorabilia, Bob Stevenson |
Document |
Unknown |
| 75648 Papers and Articles on Early Computers |
Document |
1986 |
| 75978 LEO History - Lenaerts Notebooks |
Document |
28 Jun 2012 |
| 76167 LEO I Training Notes |
Document |
1955 |
| 76170 Letter from Ernest Lenaerts to Ian White |
Document |
26 Jan 1956 |
| 76171 Lecture Notes 1955 |
Document |
2 Nov 1955 |
| A brief history of STL |
Article |
Unknown |
| Acoustic Noise in the Computer Room |
Article |
1967 |
| Anne Hills (Anne Smewing) |
Person |
Unknown |
| Automatic Square-Rooting on a Computer |
Article |
1955 |
| Ernest Lenaerts |
Person |
1910 |
| Ernest Lenaerts and his Diaries by Tony Morgan |
Document |
Unknown |
| Ernest Lenaerts Biographical Note |
Document |
Unknown |
| Explore our LEO Computers Collection |
Article |
Unknown |
| Jean Cox (Jean Elliott): Interview, 17 July 2017 53391 |
Media |
17 Jul 2017 |
| John Winterbottom: Memoir |
Article |
Unknown |
| Lenaerts Notebook 10 (9 May - 9 Sep 1952) |
Document |
9 May 1952 |
| LEO - Operations and Maintenance |
Article |
1954 |
| LEO: The First Business Computer |
Book |
Mar 1994 |
| Maintenance Procedures on a Computer |
Article |
Jan 1960 |
| Recollections of Ernest Lenaerts |
Document |
Unknown |
| Stan Holwill: My LEO Involvement & Memories |
Article |
Unknown |
| Stephen Evans: Memoir |
Article |
Unknown |
| Study of Static Charge on Paper Tape |
Article |
1966 |
| Talking to the Computer |
Article |
1969 |
| The Influence of the Cambridge Mathematical Laboratory on the LEO Project |
Article |
1992 |
| The Operator's Console |
Blog Post |
31 Jan 2022 |
| Visual Presentation of Binary Numbers |
Article |
1951 |
| Lenaerts Notebook 11 (10 Sep - 10 Nov 1952) |
Document |
10 Sep 1952 |
| Lenaerts Notebook 12 (12 Nov 1952 - 14 Jan 1953) |
Document |
12 Nov 1952 |
| Lenaerts Notebook 13 (15 Jan - 13 Mar 1953) |
Document |
15 Jan 1953 |
| 63079 Logical Design of EDSAC II with special reference to Micro-programming |
Document |
14 May 1952 |
| Lenaerts Notebook 14 (16 Mar - 5 Jul 1953) |
Document |
16 Mar 1953 |
| Lenaerts Notebook 15 (6 Jul - 26 Aug 1953) |
Document |
6 Jul 1953 |
| Lenaerts Notebook 16 (28 Aug - 12 Nov 1953) |
Document |
28 Aug 1953 |
| Lenaerts Notebook 17 (12 Nov 1953 - 2 Apr 1954) |
Document |
12 Nov 1953 |
| Lenaerts Notebook 18 ( 2 Apr - 19 Oct 1954) |
Document |
2 Apr 1954 |
| Lenaerts Notebook 19 (19 Oct 1954 - 25 Mar 1955) |
Document |
19 Oct 1954 |
| Lenaerts Notebook 20 (31 Mar - 2 Oct 1955) |
Document |
31 Mar 1955 |
| Lenaerts Notebook 21 (3 Oct 1955 - 25 Jan 1956) |
Document |
3 Oct 1955 |
| Lenaerts Notebook 22 (31 Jan - 1 May 1956) |
Document |
31 Jan 1956 |
| Lenaerts Notebook 23 (2 May - 12 Sep 1956) |
Document |
2 May 1956 |
| Lenaerts Notebook 24 (18 Sep 1956 - 14 Jan 1957) |
Document |
18 Sep 1956 |
| Lenaerts Notebook 25 (15 Jan - 30 May 1957) |
Document |
15 Jan 1957 |
| Lenaerts Notebook 26 (5 Jun - 7 Nov 1957) |
Document |
5 Jun 1957 |
| Lenaerts Notebook 27 (1 Dec 1957 - 22 Apr 1958) |
Document |
1 Dec 1957 |
| Lenaerts Notebook 28 (22 June - 1 Aug 1958) |
Document |
22 Apr 1958 |
| Lenaerts Notebook 29 (7 Aug 1958 - 5 May 1959) |
Document |
7 Aug 1958 |
| Lenaerts Notebook 30 (5 May - 22 October 1959) |
Document |
5 May 1959 |
| Lenaerts Notebook 31 (22 Oct 1959 - 12 Feb 1960) |
Document |
22 Oct 1959 |
| Lenaerts Notebook 32 (12 Feb - 16 Nov 1960) |
Document |
12 Feb 1960 |
| Lenaerts Notebook 32A, American Visit (18 June - 14 July 1961) |
Document |
18 Jun 1961 |
| Lenaerts Notebook 33 (16 Nov 1960 - 18 Aug 1961) |
Document |
16 Nov 1960 |
| 63099 Progress at Cambridge, Apr-June 1955 |
Document |
19 May 1955 |
| Lenaerts Notebook 34 (18 Aug - 18 Jan 1962) |
Document |
18 Aug 1961 |
| Lenaerts Notebook 35 (19 Jan - 16 Apr 1962) |
Document |
19 Jan 1962 |
| Lenaerts Notebook 36 (18 June - 17 July 1962) |
Document |
18 Apr 1962 |
| Lenaerts Notebook 37 (18 July - 30 Oct 1962) |
Document |
18 Jul 1962 |
| Lenaerts Notebook 38 (30 Oct 1962 - 8 Mar 1963) |
Document |
30 Oct 1962 |
| Lenaerts Notebook 39 (11 Mar - 18 July 1963) |
Document |
11 Mar 1963 |
| Lenaerts Notebook 40 (18 July - 31 Dec 1963) |
Document |
18 Jul 1963 |
| Lenaerts Notebook 41 (1 Jan - 7 Apr 1964) |
Document |
1 Jan 1964 |
| Lenaerts Notebook 42 (8 Apr - 14 Sept 1964) |
Document |
8 Apr 1964 |
| Lenaerts Notebook 43 (14 Sept 1964 - 21 Jan 1965) |
Document |
14 Sep 1964 |
| Lenaerts Notebook 44 (22 Jan - 7 July 1965) |
Document |
22 Jan 1965 |
| Lenaerts Notebook 45 (8 July - 2 Nov 1965) |
Document |
8 Jul 1965 |
| Lenaerts Notebook 46 (3 Nov 1965 - 28 Feb 1966) |
Document |
3 Nov 1965 |
| Lenaerts Notebook 47 (1 Mar - 5 Sept 1966) |
Document |
1 Mar 1966 |
| Lenaerts Notebook 48 (5 Sept 1966 - 18 Jan 1967) |
Document |
5 Sep 1966 |
| Lenaerts Notebook 49 (19 Jan - 26 June 1967) |
Document |
19 Jan 1967 |
| Lenaerts Notebook 50 (26 June - 20 Dec 1967) |
Document |
26 Jan 1967 |
| 51860 Outside the Mathematical Lab |
Photograph |
1948 |
| 60491 Ernest Lenaerts, Ray Shaw and Ernest Kaye set up for the LEO I Demonstration |
Photograph |
8 Mar 1950 |
| 60492 Accumulator Store, LEO I Demonstration |
Photograph |
8 Mar 1950 |
| 60541 Central aisle, LEO I Demonstration |
Photograph |
Mar 1950 |
| 60495 Ernest Lenaerts looking at a LEO I teleprinter |
Photograph |
1950 |
| 60542 LEO I Build Team |
Photograph |
1950 |
| 54266 LEO I Reliability Test |
Photograph |
12 Jan 1952 |
| 60473 Derek Hemy, Ernest Lenaerts, Gordon Gibbs and Leo Fantl with LEO I |
Photograph |
Jan 1952 |
| 55586 Samastronic printer |
Photograph |
1958 |
| 67827 LEO Drinks Reception |
Photograph |
Unknown |
| 69268 LEO I Closing Down Ceremony |
Photograph |
5 Jan 1965 |
| 69417 LEO I Demo |
Photograph |
Unknown |
