# Model of computation

## Mathematical model describing how an output of a function is computed given an input / From Wikipedia, the free encyclopedia

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In computer science, and more specifically in computability theory and computational complexity theory, a **model of computation** is a model which describes how an output of a mathematical function is computed given an input. A model describes how units of computations, memories, and communications are organized.[1] The computational complexity of an algorithm can be measured given a model of computation. Using a model allows studying the performance of algorithms independently of the variations that are specific to particular implementations and specific technology.

Mathematical model describing how an output of a function is computed given an input