We explain what an emitter is in communication, in the economy and in education. Also, the relationship between sender and receiver.
What is an issuer?
The issuer is the entity, individual or artifact in which some type of information, matter or Energy, and therefore emits or transmits it to the surrounding environment. His opposite figure is that of the receiver, that is, the one who receives.
Depending on the subject and area of knowledge to which it refers, said issuer can be of as different nature as what is issued. In fact, in our day to day, we are surrounded by issuers and stations. It is enough to turn on our television or our radio (traditionally called receiving devices) to connect with a station, that is, with a facility from which information is emitted via electromagnetic waves.
In the same way, the Sun is the issuer of the light that we receive daily, and our friends are the emitters of the posts that are sent to us by cell phone, just as our glands are the emitters of the hormones that regulate the functions of our Body. Everything where something is emitted, that is, where something originates and then spreads to the environment, is an emitter or at least a place of emission.
Issuer in communication
At communicative act, the sender is the one who produces or originates the message: in the case of written communication is the one who writes the message, and in the oral is who speaks.
The communicative circuit is fulfilled when said sender propagates a message through a channel physical (such as radio waves, written paper, or sound voice), also using a code (that is, a idiom) to represent it, and the receiver is able to perceive the message (tune in, read it, hear it) and decode it to extract its meaning.
In some forms of communicationSender and receiver alternate their roles as information is exchanged: one speaks and the other listens, then the first listens and the other speaks. In unidirectional forms of communication (such as radio, books or television), however, these roles are fixed and immovable.
Issuer in economics
At economic field, the issuer is called institutions or organizations that they are able to develop, register and then sell commercial securities through which to finance their own operations. These issuers may be attached to governments or be private businesses.
It is what governments do when issuing public debt bonds (bond issuance), for example, or also what the central bank does when it puts new banknotes into circulation (monetary issue). Any entity that puts financial securities into circulation is considered an issuing entity.
The most commonly issued securities in this manner are Actions, the bonds, the promissory notes, the bills and, of course, the same bills and coins.
Issuer in education
For its part, in the field educational considers as the issuer who assumes the active role of transmitting the knowledge, that is, to the teacher, teacher or tutor. This view of the educational act is, however, traditional, since it considers without saying that knowledge originates in the teacher and is then transmitted to the students, just as the sun emits its own light and radiates it to its surrounding planets.
The most modern educational trends, on the other hand, tend to see the teacher as a facilitator: a person in charge of helping students to learn, of accompanying them on the path of learning. learning, and from that perspective the teacher does not really emit the knowledge, but allows the student to discover it on his own. This difference is important when talking about educational systems or types of school.
Sender and receiver
The figure of the sender, in any case, is complemented by that of the receiver, like two pieces of a puzzle. Without transmitters, the receivers would have nothing to receive, and without receivers, the information transmitted would be lost and no use would be made of it, that is, no communication.
However, the same transmitter can generally have several simultaneous receivers, such as several people tuning in to the same TV channel; While a receiver can be dedicated, commonly, to a single transmitter at a time, that is, we cannot watch two TV channels at the same time on the same device.