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  2. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    Orders of magnitude (time) An order of magnitude of time is usually a decimal prefix or decimal order-of-magnitude quantity together with a base unit of time, like a microsecond or a million years. In some cases, the order of magnitude may be implied (usually 1), like a "second" or "year". In other cases, the quantity name implies the base unit ...

  3. ZX Spectrum - Wikipedia

    en.wikipedia.org/wiki/ZX_Spectrum

    QL. The ZX Spectrum ( UK: / zɛd ɛks /) is an 8-bit home computer developed and marketed by Sinclair Research. It is one of the most influential computers ever made, and also one of the best selling computers ever, with over five million units sold. It was first released in the United Kingdom on 23 April 1982, and around the world in the ...

  4. 7-Zip - Wikipedia

    en.wikipedia.org/wiki/7-Zip

    7-zip ZS is a fork with Zstandard and various other compression algorithms added to the file format. p7zip-zstd (p7zip with zstd) is p7zip with ZS additions. NanaZip is a fork integrating changes from many sources, modernized for the Microsoft Store. Plugins. 7-zip comes with a plug-in system for expansion.

  5. Control loop - Wikipedia

    en.wikipedia.org/wiki/Control_loop

    The control action is the switching on or off of the boiler. The process variable is the building temperature. This controller operates the heating system for a constant time regardless of the temperature of the building. In a closed-loop control system, the control action from the controller is dependent on the desired and actual process variable.

  6. Folksonomy - Wikipedia

    en.wikipedia.org/wiki/Folksonomy

    Folksonomy is a classification system in which end users apply public tags to online items, typically to make those items easier for themselves or others to find later. Over time, this can give rise to a classification system based on those tags and how often they are applied or searched for, in contrast to a taxonomic classification designed by the owners of the content and specified when it ...

  7. Bit - Wikipedia

    en.wikipedia.org/wiki/Bit

    qudit ( d -dimensional) v. t. e. The bit is the most basic unit of information in computing and digital communications. The name is a portmanteau of binary digit. [1] The bit represents a logical state with one of two possible values. These values are most commonly represented as either "1" or "0", but other representations such as true / false ...

  8. Time-sharing - Wikipedia

    en.wikipedia.org/wiki/Time-sharing

    In computing, time-sharing is the sharing of a computing resource among many tasks or users. It enables multi-tasking by a single user or enables multiple-user sessions. Developed during the 1960s, its emergence as the prominent model of computing in the 1970s represented a major technological shift in the history of computing.

  9. IBM Z - Wikipedia

    en.wikipedia.org/wiki/IBM_Z

    It is distinguished from the LinuxONE model by the blue accents on the doors. A pair of IBM mainframes. On the left is the IBM z13 (while the naming was changed, the z13 line had a zSystems label on doors). On the right is the IBM LinuxONE Rockhopper. IBM Z [1] is a family name used by IBM for all of its z/Architecture mainframe computers .