That title has been applied to at least three people, and probably others. Read up on the following and take your pick.
George R. Stibitz (1904 - 1995)
John Vincent Atanasoff (1903 - 1995)
Alan Turing (1912 - 1954)
George R. Stibitz (1904 - 1995)
John Vincent Atanasoff (1903 - 1995)
Alan Turing (1912 - 1954)