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 - Computer Hardware Engineers: Douglas Engelbart, Konrad Zuse, J. Presper Eckert, Martin Brennan, Chuck Peddle, Lynn Conway, Voja Antonic 
 - The history of computing: A biographical portrait of the visionaries who shaped the destiny of the computer industry by Marguerite Zientara,  1981
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 - John William Mauchly: An entry from Gale's <i>Science and Its Times</i> by Nathan L. Ensmenger,  2001
 - ENIAC Progress Report: An entry from Gale's <i>American Decades: Primary Sources</i> 
 - Early Computers: An entry from Macmillan Reference USA's <i>Macmillan Reference USA Science Library: Computer Sciences</i> by Ida M. Flynn,  2002
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