Input


Input

Input is the term denoting either an entrance or changes which are inserted into a system and which activate/modify a process. It is an abstract concept, used in the modeling, system(s) design and system(s) exploitation. It is usually connected with other terms, "e.g.", input field, input variable, input parameter, input value, input signal, input device and input file.

Overview

From the most general systemics perspective, input is a subjective concept and depends on how the system is used. In such sense, the same system can have different inputs in different applications.

In the case of a process description/model, input is closely connected with the concept output. Here, what enters is called input and what exits is called output.

Example:For an abstract system "A(x,y,p)", where "x,y" are variables and "p" is a parameter, "x" may denote input (variable) and "y" may denote the output for a process: "y = f(p,x)", but, for another goal/(system application), the system "A" can be the carrier of a process "x = g(p,y)", where "y" is an input and "x" is an output.Fact|date=February 2007

Usually, in the modeling of a problem/process, input are these variables which are known and output are those unknown to us yet.

In recognition that the quality of the input can be crucial to the value of the output, a famous saying teaches us "Garbage IN, Garbage OUT" (GIGO).

See also

*Output
*Input/output
*Gross Output
*Net output

References

External links

* [http://www.thefreedictionary.com/input Definitions of input] by the freedictionary.


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Look at other dictionaries:

  • input — input …   Dictionnaire des rimes

  • input — [ input ] n. m. • 1953; mot angl., de to input « mettre dedans » ♦ Anglic. 1 ♦ Techn. Entrée de données dans un système informatique, de signal dans un dispositif électronique. Des inputs. 2 ♦ Écon. Ensemble des biens et services entrant dans le… …   Encyclopédie Universelle

  • input — ÍNPUT s.n. 1. (electron.) Intrare (1). 2. (inform.) Intrare (2). – cuv. engl. Trimis de valeriu, 18.10.2006. Sursa: DEX 98  ínput s. n. Trimis de siveco, 25.11.2008. Sursa: Dicţionar ortografic  …   Dicționar Român

  • Input — Smn Eingabe per. Wortschatz fach. (20. Jh.) Entlehnung. Entlehnt aus ne. input, einer Ableitung von ne. put setzen, stellen, legen und ne. in .    Ebenso nndl. input, nfrz. input, nschw. input, nnorw. input. ✎ Rey Debove/Gagnon (1988), 429;… …   Etymologisches Wörterbuch der deutschen sprache

  • input — (izg. ìnput) m DEFINICIJA 1. inform. ulaz, unošenje podataka u kompjuter, ulazna informacija, opr. output 2. tehn. stražnji priključak na nekim uređajima koji služi za priključivanje kabela sa signalom i unosom iz drugih jedinica; ulaz, opr.… …   Hrvatski jezični portal

  • input — [in′poot΄] n. 1. the act of putting in 2. what is put in; specif., a) the amount of money, material, effort, etc. put into a project or process; investment b) electric current, voltage, or power put into a circuit, machine, etc. c) data or… …   English World dictionary

  • Input — (englisch für „Eingabe, Einspeisung“) steht für: Eingabe (Computer), von einem Computer verarbeitete Daten ein Befehl der Programmiersprache BASIC Arbeit oder geistige Energie eines Arbeitnehmers im Berufsleben Produktionsfaktoren in der… …   Deutsch Wikipedia

  • input — / input/, it. / imput/ s. ingl. [da (to ) put in mettere dentro ], usato in ital. al masch. 1. (inform.) [inserimento di dati nella memoria di un elaboratore elettronico] ▶◀ entrata, ingresso. ◀▶ output, uscita. 2. (estens.) [direttiva che avvia… …   Enciclopedia Italiana

  • input — (n.) 1793, a sum (of cash) put in, from IN (Cf. in) + PUT (Cf. put). Computing sense of data fed into a machine is from 1948; the verb in the computing sense is attested from 1946. There was a M.E. verb input (late 14c.) meaning to put in, place …   Etymology dictionary

  • input — now pronounced with the stress on the first syllable both as a noun and as a verb, has defied the linguistic obsolescence that might have been apparent to the OED editors and assumed a new life in the domains of statistics, psychology,… …   Modern English usage


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