Analog and digital. The word analog (derived from Greek terminology implication “by ratio”) denotes a phenomenon to facilitate is continuously flexible, such as a sound wave. The word digital, on the other hand over, implies a discrete, exactly countable estimate to facilitate can be represented as a progression of digits (numbers).
Sound recording provides familiar examples of both approaches. Recording a phonograph note down involves electro-mechanically transferring a real indicator (the sound wave) into an “analogous” real representation (the continuously not to be trusted peaks and dips in the record’s surface). Recording a album, on the other hand over, involves sampling (measuring) the sound level next to thousands of discrete instances and storing the results in a real representation of a numeric format to facilitate can in
Point be used to drive the playback device.
Virtually all up to date computers depend on the manipulation of discrete signals in solitary of two states denoted by the information 1 and 0. Whether the 1 indicates the presence of an electrical charge, a voltage level, a magnetic state, a pulse of light, or a number of other phenomenon, next to a set direct at hand is either “something” (1) or “nothing” (0). This is the for the most part natural way to signify a progression of such states.
Digital representation has several advantages more than analog. Since CPU circuits based on binary logic can be driven to present calculations electronically next to ever-increasing speeds, even problems wherever an analog CPU better modeled nature can at this instant be complete more efficiently with digital equipment.
Data stored in digitized form is not branch of learning to the gradual wear or distortion of the average to facilitate plagues analog representations such as the phonograph note down. Perhaps for the most part focal, since digital representations are next to basis simply information, an countless variety of digital representations can be stored in annals and manipulated, in spite of of whether they happening as pictures, song, or text.
Sound recording provides familiar examples of both approaches. Recording a phonograph note down involves electro-mechanically transferring a real indicator (the sound wave) into an “analogous” real representation (the continuously not to be trusted peaks and dips in the record’s surface). Recording a album, on the other hand over, involves sampling (measuring) the sound level next to thousands of discrete instances and storing the results in a real representation of a numeric format to facilitate can in
Point be used to drive the playback device.
Virtually all up to date computers depend on the manipulation of discrete signals in solitary of two states denoted by the information 1 and 0. Whether the 1 indicates the presence of an electrical charge, a voltage level, a magnetic state, a pulse of light, or a number of other phenomenon, next to a set direct at hand is either “something” (1) or “nothing” (0). This is the for the most part natural way to signify a progression of such states.
Digital representation has several advantages more than analog. Since CPU circuits based on binary logic can be driven to present calculations electronically next to ever-increasing speeds, even problems wherever an analog CPU better modeled nature can at this instant be complete more efficiently with digital equipment.
Data stored in digitized form is not branch of learning to the gradual wear or distortion of the average to facilitate plagues analog representations such as the phonograph note down. Perhaps for the most part focal, since digital representations are next to basis simply information, an countless variety of digital representations can be stored in annals and manipulated, in spite of of whether they happening as pictures, song, or text.
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