Editing Communication source

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A '''source''' or '''sender''' is one of the basic concepts of [[communication]] and [[Data processing|information processing]]. Sources  are objects which [[wikt:encode|encode]] [[message]] [[data]] and [[Transmission (telecommunications)|transmit]] the [[information]], via a [[channel (communications)|channel]], to one or more [[observation|observer]]s (or [[receiver (information theory)|receivers]]).{{cn|date=November 2022}}

In the strictest sense of the word, particularly in [[information theory]], a ''source'' is a process that generates message data that one would like to communicate, or reproduce as exactly as possible elsewhere in space or time.  A source may be modelled as memoryless, [[ergodic]], [[Stationary process|stationary]], or [[stochastic]], in order of increasing generality.{{cn|date=November 2022}}

''Communication Source'' combines ''Communication and Mass Media Complete'' and ''Communication Abstracts'' to provide full-text access to more than 700 journals, and indexing and abstracting for more than 1,000 core journals.  Coverage dating goes back to 1900. <ref name="ucsb2016">{{Cite web |date=2016-11-09 |title=Communication Source (including Communication Abstracts) |url=https://www.library.ucsb.edu/research/db/88 |access-date=2022-11-04 |website=UCSB Library |language=en}}</ref>

Content is derived from academic journals, conference papers, conference proceedings, trade publications, magazines and periodicals. <ref name="ucsb2016"/>

A transmitter can be either a device, for example, an antenna, or a human transmitter, for example, a speaker. The word "transmitter" derives from an emitter, that is to say, that emits using the Hertzian waves.

In [[sending]] mail it also refers to the person or organization that sends a letter and whose address is written on the envelope of the letter.

In finance, an issuer can be, for example, the bank system of elements.

In education, an issuer is any person or thing that gives knowledge to the student, for example, the professor.

For communication to be effective, the sender and receiver must share the same code. In ordinary communication, the sender and receiver roles are usually interchangeable.

Depending on the language's functions, the issuer fulfills the expressive or emotional function, in which feelings, emotions, and opinions are manifested, such as The way is dangerous.<ref name="ch">{{cite book|last=Arroyo Cantón|chapter=La comunicación|isbn=9788467367966|language=es|editor-first=Deborah|editor-last=Averbuj|first=Carlos|publisher=[[Oxford University Press]]|location=España|pages=407|last2=Berlato Rodríguez|first2=Perla|title=Lengua castellana y Literatura|year=2012}}</ref>

== In economy ==
In the [[economy]], the issuer is a legal entity, foundation, company, individual firm, national or foreign governments, investment companies or others that develop, register and then trade commercial securities to finance their operations. The issuers are legally responsible for the issues in question and for reporting the financial conditions, materials developed and whatever their operational activities required by the regulations within their jurisdictions.

==See also==
* [[CALM M5]]

==References==
{{Reflist}}

{{Authority control}}

[[Category:Communication|Source]]
[[Category:Information theory]]


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