# Is a computer equivalent to a Turing machine or linear bounded automata?

Till date I have read that a Turing machine can do whatever a computer can.

Wikipedia Turing machine

mentions that since a real machine can have only a finite number of configurations it is equivalent to linear bounded automata.

Is this true?

A machine bounded by $\Theta(1)$ memory is a finite state automaton (As a matter of fact, proving that $\textsf{DSPACE}(\Theta(1)) = \textsf{REG}$ is a classical exercise).