Computability And Complexity Theory, 2nd Edition -

: Defining complexity classes based on language restrictions rather than machine bounds.

: The machine halts on "Yes" but may loop on "No." Computability and Complexity Theory, 2nd Edition

: Analyzing programs that have a built-in "clock" or cost. : Defining complexity classes based on language restrictions

This section asks: Models of Computation : Computability and Complexity Theory, 2nd Edition