The first separately printed work on electronic computers. First edition of 'the first booklet on electronic computers separately published by a conventional publisher, and also one of the earliest discussions of how these machines could be used in scientific calculations' (Hook & Norman, Origins of Cyberspace 649).

In addition to his significant contributions to ballistics and quantum theory, British mathematician Douglas Hartree (1897-1958) was a leader in efforts to automate scientific calculations. He was 'involved in the development of the digital electronic computer, which emerged from wartime attempts to automate calculation further... In 1946 Hartree's advice was sought in the application of the United States army's ENIAC (electronic numerical integrator and computer) to the production of ballistic tables' (Oxford Dictionary of National Biography). This booklet was based on his experience with ENIAC, and describes in detail the machine's operation, its memory capacity, how problems are encoded for it to process, and what types of mathematical questions it can address. It also offers hints of future applications, such as research in fluid dynamics, statistics, number theory, and economics, where the burden of manual calculation was previously too great to allow for in-depth analysis.

First edition, first impression; 8vo; 2 plates from photographs, equations and charts within the text, crease slightly affecting final ten leaves; original cream wrappers printed in brown, ownership signature to upper cover, title and author's name written in ink on the spine, wrappers tanned, crease to lower cover, very good condition.

Hook & Norman, Origins of Cyberspace 649.