A source or sender is one of the basic concepts of

communication Communication (from la, communicare, meaning "to share" or "to be in relation with") is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inqui ...

and

information processing Information processing is the change (processing) of information in any manner detectable by an observer. As such, it is a process that ''describes'' everything that happens (changes) in the universe, from the falling of a rock (a change in posi ...

. Sources are objects which encode

message A message is a discrete unit of communication intended by the source for consumption by some recipient or group of recipients. A message may be delivered by various means, including courier, telegraphy, carrier pigeon and electronic bus. A ...

data In the pursuit of knowledge, data (; ) is a collection of discrete values that convey information, describing quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpret ...

and

transmit Transmit is a file transfer client program for macOS. Developed by Panic, Transmit is shareware. After a seven-day trial period, the product can only be used for seven-minute sessions until it has been purchased. Originally built as an FTP clien ...

the

information Information is an abstract concept that refers to that which has the power to inform. At the most fundamental level information pertains to the interpretation of that which may be sensed. Any natural process that is not completely random, ...

, via a channel, to one or more observers (or receivers). In the strictest sense of the word, particularly in

information theory Information theory is the scientific study of the quantification, storage, and communication of information. The field was originally established by the works of Harry Nyquist and Ralph Hartley, in the 1920s, and Claude Shannon in the 1940s. ...

, 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 In mathematics, ergodicity expresses the idea that a point of a moving system, either a dynamical system or a stochastic process, will eventually visit all parts of the space that the system moves in, in a uniform and random sense. This implies tha ...

, stationary, or

stochastic Stochastic (, ) refers to the property of being well described by a random probability distribution. Although stochasticity and randomness are distinct in that the former refers to a modeling approach and the latter refers to phenomena themselv ...

, in order of increasing generality. ''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. Content is derived from academic journals, conference papers, conference proceedings, trade publications, magazines and periodicals. 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.

In economy

In the

economy An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with th ...

, 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.

References

Source Information theory {{telecomm-stub

In economy

See also

References