65 Years Ago, Manchester's 'Baby' Ran Electronically Stored Program
hypnosec writes that the first ever practical implementation of the stored program concept took place 65 years ago, "as the Manchester Small Scale Experimental Machine aka 'Baby' became the world's first computer to run an electronically stored program on June 21, 1948. The 'Baby' was developed by Frederic C. Williams, Tom Kilburn and Geoff Tootill at the University of Manchester. 'Baby' served as a testbed for the experimental Williams-Kilburn tube – a cathode ray tube that was used to store binary digits, aka bits. The reason this became a milestone in computing history was that up until 'Baby' ran the first electronically stored program, there was no means of storing and accessing this information in a cost-effective and flexible way."
The Z3 and Z4 are great accomplishments, and Konrad Zuse is poorly remembered, but that's nothing to do with the Baby being the first machine to run an internally stored program. It was one of the first Von Neumann architecture machines, which is why it's significant.
Syllable : It's an Operating System
In retrospect it turns out that the work on the Colossus wasn't really lost; the guys who had built the Colossus still retained the knowledge, even if they couldn't tell others about it directly, but they cross-pollinated places like Manchester and Cambridge with early knowledge and ideas. That in turn gave us machines such as the LEO, was was really a phenomenally successful line of machines and broke new ground in establishing computers are useful machines for "trivial" tasks, rather than something only a scientist would ever need.
Computing in the UK really had a head start on the US in many ways, but in usual form it was underfunded and lacked vision; in many ways it suffered from the 50's post-war glow that "Britain Will Always Be Great". Once the Americans got in on the act they of course wiped the floor with everyone, and then socialist government meddling in the 60's just about finished off any hope of the UK compan[y|ies] being able to fight back.
Syllable : It's an Operating System