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  2. Economic system - Wikipedia

    en.wikipedia.org/wiki/Economic_system

    An economic system is a type of social system. The mode of production is a related concept. [2] All economic systems must confront and solve the four fundamental economic problems: What kinds and quantities of goods shall be produced: This fundamental economic problem is anchored on the theory of pricing.

  3. Substation - Wikipedia

    en.wikipedia.org/wiki/Substation

    A distribution substation transfers power from the transmission system to the distribution system of an area. [3] It is uneconomical to directly connect electricity consumers to the main transmission network, unless they use large amounts of power, so the distribution station reduces voltage to a level suitable for local distribution.

  4. Distribution transformer - Wikipedia

    en.wikipedia.org/wiki/Distribution_transformer

    Single-phase distribution transformer in Canada. A distribution transformer or service transformer is a transformer that provides a final voltage transformation in the electric power distribution system, stepping down the voltage used in the distribution lines to the level used by the customer. [1]

  5. Water distribution system - Wikipedia

    en.wikipedia.org/wiki/Water_distribution_system

    An example of a water distribution system: a pumping station, a water tower, water mains, fire hydrants, and service lines [1] [2]. A water distribution system is a part of water supply network with components that carry potable water from a centralized treatment plant or wells to consumers to satisfy residential, commercial, industrial and fire fighting requirements.

  6. Multiprocessor system architecture - Wikipedia

    en.wikipedia.org/wiki/Multiprocessor_system...

    Multiprocessor system with a shared memory closely connected to the processors. A symmetric multiprocessing system is a system with centralized shared memory called main memory (MM) operating under a single operating system with two or more homogeneous processors. There are two types of systems: Uniform memory-access (UMA) system; NUMA system

  7. Middleware (distributed applications) - Wikipedia

    en.wikipedia.org/wiki/Middleware_(distributed...

    An enterprise messaging system is a type of middleware that facilitates message passing between disparate systems or components in standard formats, often using XML, SOAP or web services. As part of an enterprise messaging system, message broker software may queue, duplicate, translate and deliver messages to disparate systems or components in ...

  8. Distributed shared memory - Wikipedia

    en.wikipedia.org/wiki/Distributed_shared_memory

    Software DSM systems can be implemented in an operating system, or as a programming library and can be thought of as extensions of the underlying virtual memory architecture. When implemented in the operating system, such systems are transparent to the developer; which means that the underlying distributed memory is completely hidden from the ...

  9. Distributed database - Wikipedia

    en.wikipedia.org/wiki/Distributed_database

    A distributed database is a database in which data is stored across different physical locations. [1] It may be stored in multiple computers located in the same physical location (e.g. a data centre); or maybe dispersed over a network of interconnected computers.