C. (Freddie) Williams, famous for his involvement with the world's stored-program computer at Manchester.

BBC: If you live in Burney, you must have heard of Massey's.

This is the earliest-known document that describes how to program a stored-data computer.

FORBES: Cyber Treasures For Sale

Those included stored memory (the ability to hold both a stored program and data), conditional control transfer, which allowed the computer to stop and be resumed, and the central processing unit, which allowed all computer functions to be coordinated through one source.

CNN: Machines on a mission