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Dual modular redundancy

Index Dual modular redundancy

In reliability engineering, dual modular redundancy (DMR) is when components of a system are duplicated, providing redundancy in case one should fail. [1]

12 relations: Error detection and correction, Fault-tolerant computer system, Hot spare, Lockstep (computing), Marine chronometer, Number One Electronic Switching System, Redundancy (engineering), Reliability engineering, Royal Navy, Submarine Command System, The Mythical Man-Month, Triple modular redundancy.

Error detection and correction

In information theory and coding theory with applications in computer science and telecommunication, error detection and correction or error control are techniques that enable reliable delivery of digital data over unreliable communication channels.

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Fault-tolerant computer system

Fault-tolerant computer systems are systems designed around the concepts of fault tolerance.

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Hot spare

A hot spare or warm spare or hot standby is used as a failover mechanism to provide reliability in system configurations.

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Lockstep (computing)

Lockstep systems are fault-tolerant computer systems that run the same set of operations at the same time in parallel.

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Marine chronometer

A marine chronometer is a timepiece that is precise and accurate enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation.

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Number One Electronic Switching System

The Number One Electronic Switching System (1ESS) was the first large-scale stored program control (SPC) telephone exchange or electronic switching system in the Bell System.

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Redundancy (engineering)

In engineering, redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.

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Reliability engineering

Reliability engineering is a sub-discipline of systems engineering that emphasizes dependability in the lifecycle management of a product.

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Royal Navy

The Royal Navy (RN) is the United Kingdom's naval warfare force.

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Submarine Command System

SMCS, the Submarine Command System, was first created for the Royal Navy of the United Kingdom's Vanguard class submarines as a tactical information system and a torpedo weapon control system.

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The Mythical Man-Month

The Mythical Man-Month: Essays on Software Engineering is a book on software engineering and project management by Fred Brooks first published in 1975, with subsequent editions in 1982 and 1995.

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Triple modular redundancy

In computing, triple modular redundancy, sometimes called triple-mode redundancy, (TMR) is a fault-tolerant form of N-modular redundancy, in which three systems perform a process and that result is processed by a majority-voting system to produce a single output.

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References

[1] https://en.wikipedia.org/wiki/Dual_modular_redundancy

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