What is a Turing machine and how is it related to automata theory?

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. A Turing machine has a tape of infinite length on which it can perform read and write operations.

How is a Turing machine similar to a computer?

Turing machines are equivalent to modern electronic computers at a certain theoretical level, but differ in many details. In the analogy with a computer, the “tape” of the Turing machine is the computer memory, idealized to extend infinitely in each direction.

What is a Turing machine used for?

A Turing machine is an abstract computational model that performs computations by reading and writing to an infinite tape. Turing machines provide a powerful computational model for solving problems in computer science and testing the limits of computation — are there problems that we simply cannot solve?

What is the impact of Turing machine in computer science?

It helped led to asymptotic complexity as a way to compare performance of algorithms. Another major advance was that the Turing model lead to the notion of an instantaneous description of a computation and a valid computation.

What are the special feature of Turing machine?

There are various features of the Turing machine: It has an external memory which remembers arbitrary long sequence of input. It has unlimited memory capability. The model has a facility by which the input at left or right on the tape can be read easily.

What are the features of Turing machine?

There are various features of the Turing machine:

• It has an external memory which remembers arbitrary long sequence of input.
• It has unlimited memory capability.
• The model has a facility by which the input at left or right on the tape can be read easily.
• The machine can produce a certain output based on its input.