By Elizabeth Bruton, Jeremy McCarthy and Dermot Turing Zygalski sheets: Polish codebreaking and the role of reconstruction in the Top Secret exhibition at the Science Museum By Robert Gwynne A long engagement – railways, data and the information age By Tom Ritchie Ventriloquised voices: the Science Museum and the Hartree Differential Analyser By James Sumner Review: The thrilling adventures of Lovelace and Babbage: the (mostly) true story of the first computer, by Sydney Padua
