Defined as the era from the 1800s until 1969, the Prehistory Era included the activities of such math and computing superstars as Ada Byron, Kay McNulty Mauchly Antonelli, the Tech Model Railroad Club hackers at MIT, the early days of Dennis Ritchie and Ken Thompson at Bell Laboratories, and the early years of Rear Admiral Dr. Grace Murray Hopper.

See Also: Antonelli, Kay McNulty Mauchly; Byron, Ada; Hopper, Rear Admiral Dr. Grace Murray; Ritchie, Dennis; Thompson, Ken.