An abstract machine specifies a computational state and rules for advancing that state without requiring one particular physical implementation. A Turing machine and a stack machine give different ways to organize the state and its transitions.
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An abstract machine is a theoretical model used to define the behavior of computing systems or algorithms in a simplified manner. It provides a framework for understanding how computation occurs without getting bogged down in the intricacies of specific hardware or programming language implementations. Here are a few key points about abstract machines: 1. **Definition**: An abstract machine describes the necessary components (like memory, processor, and state) and rules that dictate how these components interact to perform computations.