A typical formulation of Turing machines stipulates that they take no input. For certain purposes, Turing machines have as their only output whether or not they halt.
Turing machines that take input take it only as the initial state of their tape. Those that produce output produce it as the final state of their tape.
A typical formulation of Turing machines stipulates that they take no input. For certain purposes, Turing machines have as their only output whether or not they halt.
Turing machines that take input take it only as the initial state of their tape. Those that produce output produce it as the final state of their tape.