Unit 8 terciary sector

                                            Media.

The term media refers to the ways of communicating developed in the 19th and 20th centuries like the press (newspapers) etc... also  refers to the means of delivering and receiving data or information.

                                  Types of media.

- press:  is a written or recorded communication directed at members of the news media for the purpose of announcing something ostensibly newsworthy and it still plays an important role in communicating news and opinions.

- Telephony: is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. Telephony has changed a lot. Mobile phones now include many applications and can send and receive text messages, images and videos.

- Radio:  is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space. 

until the mid 20th century it was the fastest way of communicating 

- television: is a telecommunication medium used for transmitting moving images in monochrome (black-and-white), or in color, and in two or three dimensions and sound. 

- The internet: is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope. This IT network has revolusionated the mass media because it includes press, television and radio.