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In engineering and systems theory, redundancy is the intentional duplication of critical components or functions of a system with the goal 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.
Philadelphia County is unique in Pennsylvania in that it is a consolidated city-county, and so while the county is technically not governed by a home rule charter (and is therefore not included on the list), the fact that Philadelphia City (which constitutes the same land area as and administers all the governmental affairs of Philadelphia ...
In propositional logic, tautology is either of two commonly used rules of replacement. [1] [2] [3] The rules are used to eliminate redundancy in disjunctions and conjunctions when they occur in logical proofs. They are: The principle of idempotency of disjunction:
Redundancy is a form of resilience that ensures system availability in the event of component failure. Components ( N ) have at least one independent backup component (+1). The level of resilience is referred to as active/passive or standby as backup components do not actively participate within the system during normal operation.
This depends upon very crude forms of artificial intelligence that perform reconfiguration by obeying specific rules. An example of this approach is the AN/UYK-43 computer. Formal design philosophies involving active redundancy are required for critical systems where corrective labor is undesirable or impractical to correct failure during ...
The Common Address Redundancy Protocol or CARP is a computer networking protocol which allows multiple hosts on the same local area network to share a set of IP addresses. Its primary purpose is to provide failover redundancy, especially when used with firewalls and routers. In some configurations, CARP can also provide load balancing ...
The Pennsylvania Bulletin is the weekly gazette containing proposed, enacted and emergency rules and other notices and important documents. [7] Changes in the Pennsylvania Code are made via the Pennsylvania Code Reporter, a monthly loose-leaf supplement. [7] They are compiled, edited and supplemented by the Pennsylvania Legislative Reference ...
In computing, triple modular redundancy, sometimes called triple-mode redundancy, [1] (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. If any one of the three systems fails, the other two systems can correct and ...