Information transfer in the context of "Communications channel"

A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking. A channel is used for information transfer of, for example, a digital bit stream, from one or several senders to one or several receivers. A channel has a certain capacity for transmitting information, often measured by its bandwidth in Hz or its data rate in bits per second.

Communicating an information signal across distance requires some form of pathway or medium. These pathways, called communication channels, use two types of media: Transmission line-based telecommunications cable (e.g. twisted-pair, coaxial, and fiber-optic cable) and broadcast (e.g. microwave, satellite, radio, and infrared).

World literature is used to refer to the world's total national literature and the circulation of works into the wider world beyond their country of origin. In the past, it primarily referred to the masterpieces of Western European literature. However, world literature today is increasingly seen in an international context. Now, readers have access to a wide range of global works in various translations.

Many scholars assert that the circulation beyond its country of origin is what makes a work considered world literature. For example, David Damrosch states, "A work enters into world literature by a double process: first, by being read as literature; second, by circulating out into a broader world beyond its linguistic and cultural point of origin". Likewise, world literature scholar Venkat Mani believes that the "worlding" of literature is brought about by "information transfer" largely generated by developments in print culture. Because of the advent of the library, "Publishers and booksellers who print and sell affordable books, literate citizens who acquire these books, and public libraries that make these books available to those who cannot afford to buy them collectively play a very important role in the "making" of world literature".

Information exchange or information sharing means that people or other entities pass information from one to another. This could be done electronically or through certain systems. These are terms that can either refer to bidirectional information transfer in telecommunications and computer science or communication seen from a system-theoretic or information-theoretic point of view. As "information," in this context invariably refers to (electronic) data that encodes and represents the information at hand, a broader treatment can be found under data exchange.

Information exchange has a long history in information technology. Traditional information sharing referred to one-to-one exchanges of data between a sender and receiver. Online information sharing gives useful data to businesses for future strategies based on online sharing. These information exchanges are implemented via dozens of open and proprietary protocols, message, and file formats. Electronic data interchange (EDI) is a successful implementation of commercial data exchanges that began in the late 1970s and remains in use today.

In telecommunication, a shared medium is a medium or channel of information transfer that serves more than one user at the same time.

In order for most channels to function correctly, no more than one user can be transmitting at a time, so a channel access method must always be in effect.

Public opposition describes a form of social activity that deliberately opposes establishment opinion in the public sphere in order to raise public awareness of topics, problems or social groups that appear to be neglected or oppressed. As with the public sphere, public opposition is in direct opposition to the private sphere — at its core, it is about occupying public spaces where people can gather and get informed. The development of various means of communication has decisively influenced the forms and possibilities of informational transfer.

Demonstrations are the oldest and still current means for people to draw attention to themselves, their situation or their concerns. Here, no (technological) means of communication is needed to convey messages - this can be done by shouting, chanting or displaying posters - and the messages will come across. Advocacy journalism also attempts to draw attention to topics that are underrepresented in the mass media.

A hotline is a point-to-point communications link in which a call is automatically directed to the preselected destination without any additional action by the user when the end instrument goes off-hook. An example would be a phone that automatically connects to emergency services on picking up the receiver. Therefore, dedicated hotline phones do not need a rotary dial or keypad. A hotline can also be called an automatic signaling, ringdown, or off-hook service.