The technical means used to deliver information include a variety of communications. They involve the use of fax, telephone, telegraph machines, computers equipped with modems, etc. All these devices make it possible to organize a variety of types of communication. When transmitting information to the user, those methods that are used to implement the session are unknown.
Traditional types of communication are divided into:
- postal (transferring graphic and alphanumeric information);
- telephone (transmitting speech);
- telegraphic (designed to carry alphanumeric messages);
- facsimile (facilitating the transfer of graphic and alphanumeric information);
- radio relay and satellite communications.
Moreover, information transfer methods can be wired (telegraph, telephone, etc.), as well as wireless. In the second type of communication, in turn, individual groups are classified (radio, radio relay and satellite systems). In this case, the transmission of speech, for example, is possible through virtually any of the types.
Modern types of communication are divided into:
-phone;
-computer telephony;
-radiotelephone;
- systems of radiotelephone cellular communication;
-systems included in the Wi-Fi standard.
This type of communication, such as telephone, is the most widely used and widespread. It is used not only for contacts between people, but also for more
operational management of enterprises, the administrative building, as well as for the implementation of financial and economic activities. Depending on the type of use of the phone, communication is divided into two main types:
-for general use (international, intercity and city);
-internal, applied within only one organization.
In computer telephony technology, the main role is given to a personal computer. The use of this type of communication significantly accelerates the process of operational management of the enterprise, while increasing the quality and efficiency of administration with a minimum amount of costs. The use of modern computer technology can reduce the amount to pay for long-distance and international calls.
Communications such as radiotelephone use wireless systems in the process of transmitting information. This allows you to significantly reduce the costs incurred for the installation of expensive communications and their subsequent maintenance. This type of communication is very mobile and can be quickly organized in any locality. Radiotelephony is currently an excellent alternative to landline telephony.
The reason for the emergence of cellular communications is the need to create an extensive network of radiotelephone mobile communications. Currently, the use of this method of transmitting information is carried out in more than one hundred and forty countries of the globe, on all continents.
Wi-Fi also belongs to modern wireless technologies. The principle of information transfer in this form of communication is based on connecting a number of computers to the network or connecting them to the Internet.