Here's a great video on Colossus. The interesting fact is that Tommy Flowers had to build it with his own money, as the government wouldn't pay for it initially

Here's a great video on Colossus. The interesting fact is that Tommy Flowers had to build it with his own money, as the government wouldn't pay for it initially. https://youtu.be/TPvqy9tldoo https://youtu.be/TPvqy9tldoo