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  2. Simple machine - Wikipedia

    en.wikipedia.org/wiki/Simple_machine

    A simple machine is a mechanical device that changes the direction or magnitude of a force. [1] In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. [2] Usually the term refers to the six classical simple machines that were defined by Renaissance scientists: [3] [4 ...

  3. Simple function - Wikipedia

    en.wikipedia.org/wiki/Simple_function

    Simple functions are sufficiently "nice" that using them makes mathematical reasoning, theory, and proof easier. For example, simple functions attain only a finite number of values. Some authors also require simple functions to be measurable; as used in practice, they invariably are. A basic example of a simple function is the floor function ...

  4. Counter machine - Wikipedia

    en.wikipedia.org/wiki/Counter_machine

    Counter machines with two counters are Turing complete: they can simulate any appropriately-encoded Turing machine, but there are some simple functions that they cannot compute. Counter machines with only a single counter can recognize a proper superset of the regular languages and a subset of the deterministic context free languages. [1]

  5. Finite-state machine - Wikipedia

    en.wikipedia.org/wiki/Finite-state_machine

    State diagram for a turnstile A turnstile. An example of a simple mechanism that can be modeled by a state machine is a turnstile. [4] [5] A turnstile, used to control access to subways and amusement park rides, is a gate with three rotating arms at waist height, one across the entryway.

  6. Outline of machines - Wikipedia

    en.wikipedia.org/wiki/Outline_of_machines

    The following outline is provided as an overview of and topical guide to machines: Machine – mechanical system that provides the useful application of power to achieve movement. A machine consists of a power source, or engine, and a mechanism or transmission for the controlled use of this power.

  7. Automata theory - Wikipedia

    en.wikipedia.org/wiki/Automata_theory

    Such a machine is called queue machine and is Turing-complete. Tape memory: The inputs and outputs of automata are often described as input and output tapes. Some machines have additional working tapes, including the Turing machine, linear bounded automaton, and log-space transducer. Transition function

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Unit record equipment - Wikipedia

    en.wikipedia.org/wiki/Unit_record_equipment

    Machine Functions (PDF). 224-8208-3. A simplified description of common IBM machines and their uses. IBM (1957). IBM Equipment Summary (PDF). With descriptions, photos and rental prices. IBM (1959). IBM Operators Guide: Reference Manual (PDF). A24-1010-0. The IBM Operators Guide, 22-8485 was an earlier edition of this book; Murray, Francis J ...