Have just started reading Turing's Cathedral, by George Dyson. Tells about the development and growth of digital computing in the 1940s and 1950s. According to the book, in March 1953 OTL there were 53 kilobytes of high-speed random-access memory on the planet Earth. If you consider that the UTers brought a quantum leap more RAM alone with them in just one of their various devices, imagine the boost to digital computing ITTL. This timeline's 2011 should have computing capabilities we won't have for many years.
Otis R. Needleman in the AH.com thread