MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -A turing machine is a a) real machine b) abstract machine c) hypothetical machine d) more than one option is correct Answer: d Explanation: A turing machine is abstract or hypothetical machine thought by mathematician Alan Turing in 1936 capable of simulating any algorithm, however complicated it is.

Detailed explanation-2: -A multi-tape Turing machine is a variant of the Turing machine that utilizes several tapes. Each tape has its own head for reading and writing. Initially, the input appears on tape 1, and the others start out blank.

Detailed explanation-3: -Turing machines are defined to have only a finite number of states. Since every accepting state is a state, it’s impossible to have infinitely many accepting states.

Detailed explanation-4: -The set of Turing machines is countably infinite, which means that Turing machines can be numbered using natural numbers. That is you can create a 1-to-1 mapping between natural numbers and Turing machines. +1.

Detailed explanation-5: -A single tape Turing Machine M has six states q0, q1, q2, q3, q4, q5, of q0 and q5 are initial state and final state respectively. The tape alphabet of M is a, b, B and its input alphabet is a, b.