It has been suggested that Counter automaton be merged into this article. (Discuss) Proposed since January 2024.
Abstract machine used in a formal logic and theoretical computer science
A counter machine is an abstract machine used in a formal logic and theoretical computer science to model computation. It is the most primitive of the four types of register machines. A counter machine comprises a set of one or more unbounded registers, each of which can hold a single non-negative integer, and a list of (usually sequential) arithmetic and control instructions for the machine to follow. The counter machine is typically used in the process of designing parallel algorithms in relation to the mutual exclusion principle. When used in this manner, the counter machine is used to model the discrete time-steps of a computational system in relation to memory accesses. By modeling computations in relation to the memory accesses for each respective computational step, parallel algorithms may be designed in such a matter to avoid interlocking, the simultaneous writing operation by two (or more) threads to the same memory address.
A countermachine is an abstract machine used in a formal logic and theoretical computer science to model computation. It is the most primitive of the...
Look up counter in Wiktionary, the free dictionary. Counter may refer to: Countermachine, a subclass of register machinesCounter (digital), an electronic...
A vending machine is an automated machine that dispenses items such as snacks, beverages, cigarettes, and lottery tickets to consumers after cash, a credit...
are in the finite state machine in the manner of the Harvard architecture. Pointer machine – a blend of the countermachine and RAM models. Less common...
A Geiger counter (/ˈɡaɪɡər/, GY-gər; also known as a Geiger–Müller counter or G-M counter) is an electronic instrument used for detecting and measuring...
work further and reduced the Turing machine to a more friendly, computer-like abstract model called the countermachine; Elgot and Robinson (1964), Hartmanis...
equipped with a counter that incremented upon each key press, and so is also known as the "countermachine" or the Zählwerk Enigma. Enigma machine G was modified...
classification of paradoxes: A veridical paradox produces a result that appears counter to intuition, but is demonstrated to be true nonetheless: That the Earth...
introduced variants of the machines discussed by Wang: Minsky evolved Wang's notion with his version of the (multi-tape) "countermachine" model that allowed...
science, more particular in the theory of formal languages, a counter automaton, or countermachine, is a pushdown automaton with only two symbols, A {\displaystyle...
the machine in the Matita proof assistant.[citation needed] Alternating Turing machine – Abstract computation model Countermachine – Abstract machine used...
Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and...
the ring. Ring counters are often used in hardware design (e.g. ASIC and FPGA design) to create finite-state machines. A binary counter would require an...
(revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device...
Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's intelligence program...
Counterinsurgency (COIN, or NATO spelling counter-insurgency) is "the totality of actions aimed at defeating irregular forces". The Oxford English Dictionary...
The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction...
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