This book constitutes the refereed proceedings of the IFIP WG 9.7 International Conference on the History of Computing, HC 2010, held as part of the 21st World Computer Congress, WCC 2010, in Brisbane, Australia, in September 2010. The 22 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers cover a broad scope of topics relating to the history of computing written both by historians and by those who were involved in creating this history, ranging from computing hardware, software and computer applications (including education) to social aspects of computing.