## What is a description of a Turing machine?

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. Despite the model’s simplicity, given any computer algorithm, a Turing machine capable of simulating that algorithm’s logic can be constructed.

**What are the three main components of a Turing machine?**

The Turing machine has three main parts:

- a tape, infinite in both direction, divided into equal sized cells, containing symbols from the alphabet ;
- a register, containing values from , which determines the actual behaviour of the Turing machine;

**What are the techniques of Turing machine?**

A Turing machine can make space on its tape by shifting all nonblank symbols a finite number of cells to the right. To do so, the tape head must make an excursion to the right, repeatedly storing the symbols read in its finite control and replacing them with symbols read from cells to the left.

### What are the special 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.

**How do you describe the transition function of a Turing machine?**

δ is a transition function which maps Q × T → Q × T × {L,R}. Depending on its present state and present tape alphabet (pointed by head pointer), it will move to new state, change the tape symbol (may or may not) and move head pointer to either left or right. q0 is the initial state. F is the set of final states.

**Which statement is true about deterministic Turing machine?**

Explanation: A deterministic turing machine is unambiguous and for every input, there is exactly one operation possible. It is a subset of non-deterministic Turing machines. 9.

## What are Turing machines explain different ways by which we can represent the Turing machines?

A Turing Machine (TM) is a mathematical model which consists of an infinite length tape divided into cells on which input is given. It consists of a head which reads the input tape….Comparison with the previous automaton.

Machine | Stack Data Structure | Deterministic? |
---|---|---|

Turing Machine | Infinite tape | Yes |

**Why Turing machine is most powerful?**

How powerful are Turing machines? Turing machines can accept any regular or context- free language. Turing machines can perform basic arithmetic computations. Turing’s Thesis states that any computation that can be carried out by “mechanical means” can be performed by a Turing machine (ignoring ef- ficiency issues).

**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.).

### How do you trace a Turing machine?

Tracing the Turing machine

- Find the rule for the current state (S1), and current input (1)
- Find the rule for the current state (S2), and current input (0)
- Find the rule for the current state (S2), and current input (1)
- Find the rule for the current state (S3), and current input (0)