Abigail Adams Biography. Abigail Smith (Adams) was born on November 11, 1744, in Weymouth, Massachusetts. She was the second child born to Elizabeth Quincy Smith and the Reverend William Smith. Her father was Pastor of Weymouth's North Parish Congregational Church and one of the best educated and most prosperous citizens of the community.
13. Alan Turing, one of the pioneers of (theoretical) computer science, made many seminal scientific contributions to our field, including defining Turing machines, the Church-Turing thesis, undecidability, and the Turing test. However, his important discoveries are not limited to the ones I listed.
The Turing machine was invented in 1936 by Alan Turing, who called it an a-machine (automatic machine). Turing machine is a general example of a CPU that controls all data manipulation done by a computer. More specifically, it is a machine (automaton) capable of enumerating some arbitrary subset of valid strings of an alphabet; these strings are part of a recursively enumerable set.