ENIAC and EDVAC descriptions from the Historical Monograph "Electronic Computers within the Ordnance Corps" produced by the U.S. Army in the early 1960s. (Note that the existence of computers outside the US had clearly not penetrated the military psyche at the time it was written -- especially in the famous
Computer Tree page, where one has to assume that "United States" implicitly
qualifies "computer(s)" everywhere!)
Tommy Thomas, who worked on the 1948 machine, has
his own page on the early years at Manchester