How can Turing machines be compared to computers?

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.

Why are Turing machines useful?

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? Turing machines are similar to finite automata/finite state machines but have the advantage of unlimited memory.

Can a computer be more powerful than a Turing machine?

It is known that Turing machines are not so efficient, though they polynomially simulate classical computers. Quantum computers are believed to be exponentially more efficient than Turing machines. In this sense, you can beat Turing machines (if you could only build a scalable quantum computer).

What is equivalent to a Turing machine?

Other equivalent machines and methods Markov algorithm is another remarkably simple computational model, based on string rewriting, equivalent to the Turing machines.

What is Turing machine in computer science?

A Turing machine is a mathematical model of computation that defines an abstract machine that manipulates symbols on a strip of tape according to a table of rules. The Turing machine was invented in 1936 by Alan Turing, who called it an “a-machine” (automatic machine).

How does a Turing machine work in computing?

A Turing machine is a mathematical model of computation that defines an abstract machine that manipulates symbols on a strip of tape according to a table of rules. The machine operates on an infinite memory tape divided into discrete “cells”.

Why is the turing machine more powerful than any other automata?

The short answer is that Turing machines are more powerful because they can remember more. A 15-state finite automaton, for example, can only remember one of 15 things (“I’ve seen 2 c’s in a row.”; “I haven’t seen any d’s yet.”; etc.).

Why turing machine is more powerful than finite automata?

turing machine head movement is continued to one direction. turing machine head moment is in both directions i.e. left moment and right moment as well. turing machine has capability remember arbitrary long sequence of input string. turing machine has capability remember arbitrary long sequence of input string.

Are all Turing machines equal?

A Turing-complete system is called Turing-equivalent if every function it can compute is also Turing-computable; i.e., it computes precisely the same class of functions as do Turing machines. Alternatively, a Turing-equivalent system is one that can simulate, and be simulated by, a universal Turing machine.

Are the multi track Turing machine and basic machines equivalent or not justify your answer?

A Multitrack Turing machine is a specific type of multi-tape Turing machine. In a standard n-tape Turing machine, n heads move independently along n tracks. It is equivalent to the standard Turing machine and therefore accepts precisely the recursively enumerable languages.