Information processor

An information processor or information processing system , as icts name Suggests, is a system (be it electrical , mechanical or biological ) qui takes information (a sequence of enumerated symbols or states ) in one form and processes (transforms) it into Reviews another form, Eg to statistics , by an algorithmic process.

An information processing system is made up of four basic parts, or sub-systems :

  • input
  • processor
  • storage
  • output

An object may be considered an information processor if it receives information from another object and in some way changes the information before transmitting it. This broadly defined term can be used to describe every change that occurs in the universe. As an example, a falling rock could be considered an information processor due to the following observable facts:

First, information in the form of gravitational force from the earthquake. At a particular moment the rock is a specific distance from the surface of the earth traveling at a specific speed. Both the current and the current distance are also considered “stored” in the rock.

In the next instant, the distance of the rock from the earth has changed due to its motion under the influence of the Earth’s gravity. Any time the properties of an object change a process has happened meaning that a processor of some kind is at work. In addition, the rock’s new position and increased speed are observed by us as it falls. These changing properties of the rock are its “output.”

In this example, both the rock and the earth are information processing systems, because both objects change the properties of the other over time.

If change occurs, information is processed.

Information theory approach

From the stance of information theory , information is taken as a sequence of symbols from an alphabet, say an input alphabet χ, and an output alphabet Υ. Χ </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> </s> ー </s> </s> </s> </s> </s> The mapping may be probabilistic or determinate. It may have memory or be memoryless. [1]

See also

  • Data , data processing , information system
  • Physical symbol system
  • Holographic principle – an information processing conjecture about physics
  • Black box
  • Channel (communications)
  • Web service

References

  1. Jump up^Stephen B. Wicker, Saejoon Kim (2003). Fundamentals of Codes, Graphs, and Iterative Decoding . Springer. pp. 1 ff . ISBN  1402072643 .

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