"A fascinating and insightful account of the two co-inventors of the world’s first computer, written in a succinct style that will capture and sustain the interest of even the least technically sophisticated reader."

–Kirkus Reviews

 "A great story … McCartney offers excellent documentation, interesting asides and real drama."

–Publishers Weekly

 "Well researched and written, McCartney’s book is good reading for those interested in computers or the history of technological innovation."

–Library Journal

 "McCartney puts the development of computers into context–their ability to bring order to modern life by quickly counting and comparing data, and the promise of chaos by so small a thing as whether they will recognize the year 2000."

–Booklist