Decoherence: the obstacle to quantum computation
David Peter Divincenzo, Barbara M. Terhal · Physics World · 1998
Alan Turing laid the foundation for the modern computer in 1936 when he introduced the concept of a universal computer; now known as a Turing machine. But it took another 10 years of research before the first electronic computer, the ENIAC, was actually built by scientists at the University of Pennsylvania. The ENIAC was capable of performing arithmetic on numbers Up to 10 digits long.