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Practically all naturally occurring processes can be viewed as examples of [[data processing system]]s where "real world" information in the form of [[pressure]], [[light]], etc. are converted by human [[observer]]s into [[electrical]] signals in the [[nervous system]] as the [[sense]]s we recognise as [[touch]], [[sound]], and [[vision]]. Even the interaction of non-living systems may be viewed in this way as rudimentary [[information processing system]]s. Conventional usage of the terms ''data processing'' and ''information system''s restricts their use to refer to the algorithmic derivations, logical deductions, and statistical calculations that recur perennially in general business environments, rather than in the more expansive sense of all conversions of real-world measurements into real-world information in, say, an organic biological system or even a scientific or engineering system.
*[[Data entry clerk]]
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