Charles Babbage is considered to be the "father of computers" because of his work on the Analytical Engine. The Analytical Engine was a mechanical computer designed to perform arithmetic operations and store data in memory. Babbage's work laid the foundation for the development of modern computers.
Alan Turing is considered to be one of the most important computer scientists of all time. He made many significant contributions to computer science, including the development of the Turing machine. The Turing machine is a theoretical model of a computer that can be used to compute any computable function. Turing's work also laid the foundation for the development of artificial intelligence.
These two men are widely regarded as the most powerful and important men in computer history because of their foundational contributions to the field. Their work has had a profound impact on the way we live today.