Tag: Turing machines
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Turing Machines in Computational Theory
A Turing Machine (TM) is one of the most important theoretical models of computation in computer science and computational theory. It was introduced by the British mathematician Alan Turing in 1936 as a way to define the concept of computability. Turing machines are used to understand the limits of what can be computed and serve…
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Undecidability and Turing Machines in Computational theory
Undecidability is a fundamental concept in theoretical computer science, particularly in the study of computational theory and Turing machines. It refers to the class of problems for which no algorithm exists that can determine the answer in a finite amount of time for all possible inputs. These problems are “undecidable” because they cannot be solved…
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Pushdown Automata in Computational Theory
A Pushdown Automaton (PDA) is a more powerful extension of the finite automaton (FA) used in computational theory to recognize a broader class of languages. Unlike finite automata, which are limited to recognizing regular languages, pushdown automata can recognize context-free languages (CFLs). The primary distinguishing feature of a PDA is its use of a stack,…