Comprises:
- D1, E.S. Shire and S.K. Runcorn, An Apparatus for the Computation of Serial Correlations and its Use in Frequency Analysis, Research Report No. 262, January 1945;
- D2, P.M. Woodward and G.G. Sutton, RREAC. The RRE Automatic Computer: General Description, Technical Note No. 691, July 1962 (2 copies);
- D3, D.A.H. Brown and T.R. Berry, RREAC. The REE Automatic Computer: Main and Modifier Store, Technical Note No. 694, July 1963 (2 copies);
- D4, A.K. Jonscher, Semiconductor Radiation Detectors Depending on Direct Heating of Carriers, Memo. No.2139, November 1964;
- D5, T.P. McLean, Coherence and Fluctuations in Light Beams, Memorandum No. 2149, December 1964;
- D6, J.E. Midwinter, The Theory of Q Switching Applied to Slow Switching and Pulse Shaping for Solid State Lasers, Memorandum No. 2147, February 1965;
- D7, D. Griffiths and R. Watton, Properties of Superconducting Thin Tin Films", Memorandum No. 2154, February 1965;
- D8, J.E. Midwinter, Notes on Alignment Techniques for Optical Systems with Particular Reference to Lasers, Memorandum No. 2148, February 1965;
- D9, D. Griffiths, Switching Transients in a Small Cryotron Selection Network for the Store of a Cryogenic Computer, Memorandum No. 2169, April 1965;
- D10, T.P. Pulford and G.R. Toull, A 35 MM Film Reader with Digital PrintOut, Memorandum No. 2182, November 1965;
- D11, T.P. Pulford, A High Speed Electronic Camera, Memorandum No. 2185, January 1966;
- D12, J. Wood, Integrated MOS Transistor Arrays for Computer Peripheral Equipment, Memorandum No. 2273, March 1966;
- D13, S. Howle, Military Package Engineering Techniques Applicable to Commercial Electronic Equipment, Memorandum No. 2280, April 1966;
- D14, C.S.E. Phillips, Networks for Real Time Programming, Memorandum No. 2275, April 1966;
- D15, P.J. Tufton, Comparison Between the Elastic Properties of the Bulk and Thin Film Forms of Permalloy, Memorandum No. 2271, May 1966;
- D16, J. Wood, Joint Industry/Government Research Project on Design of Digital Integrated Circuits, Memorandum No. 2295, May 1966;
- D17, M.P. Warden, Electro-Optical Light Modulation, Memorandum No. 2287, May 1966;
- D18, M. Griffiths, Anatomy of a Compiler, Memorandum No. 2296, June 1966.