Charles Babbage was a mathematician, philosopher, and an engineer. He invented the concept of digital programmable computers. He created the first computer, which he called "the difference engine." It was produced in 1822, and it was the size of a house, although it could only hold one program. It was powered by steam, and it could even print, and he worked on it for ten years.
He began to make the first general-purpose computer called "the analytical engine." They couldn't build the machines because they didn't have the funding, which made people believe Babbage was crazy, and he lost his credibility. It was an issue of having the right idea at the wrong time. When they were finally able to build it, they discovered it worked remarkably well.