Confines of Educational Technology <ul><li>Technology is an extremely valuable addition to the educator’s toolbox. However, it does not replace traditional media or methods of educating. </li></ul><ul><li>Simulation can never replace the benefits of working with real objects. </li></ul><ul><li>Finally technology can never replace the human element. </li></ul>
Media are the storage and transmission tools used to store and deliver information or data. It is often referred to as synonymous with mass media or news media, but may refer to a single medium used to communicate any data for any purpose
Where does media come from? According to William McGaughey from his book "Five Epochs of Civilization" there are five ages of media <ul><li>Ideographic drawing </li></ul>
<ul><li>Wall paintings and engravings have been found in more than 200 caves, largely in Spain and France, dating from 25,000 to 10,000 years ago. </li></ul><ul><li>Animals </li></ul><ul><li>Geometric signs </li></ul><ul><li>Human figures </li></ul>
Full writing systems are characterized by a more or less fixed correspondence between the signs of the writing system and elements of the language the writing represents. Thus, writing systems can be categorized as word (or logographic), syllabic, or alphabetic.
is a process for reproducing text and image, typically with ink on paper using a printing press. It is often carried out as a large-scale industrial process, and is an essential part of publishing and transaction printing. Printing In ancient Rome, commercial book publishers issued editions comprising as many as 5000 copies of such works as the epigrams of the Roman poet Martial. This copying work was done by literate slaves.
<ul><li>Electronic recording and broadcasting </li></ul>
is a crucial instrument of modern social and political organization. At its peak of influence in the mid-20th century, radio and television broadcasting was employed by political leaders to address entire nations. Because of radio and television’s capacity to reach and influence large numbers of people, and owing to the limited spectrum of frequencies available, governments have commonly regulated broadcasting wherever it has been practiced. Broadcasting
Television Broadcasting <ul><li>During the 1930s several companies around the world actively prepared to introduce television to the public. </li></ul><ul><li>. As early as 1935, the BBC initiated experimental television broadcasts in London for several hours each day. </li></ul><ul><li>. CBS hired American theater, film, and radio critic Gilbert Seldes as a consultant on its television-programming development project. </li></ul><ul><li>Franklin Roosevelt is the first president to be televised on air. </li></ul>
Radio Broadcasting <ul><li>It started from the idea of David Sarnoff in the year 1916. </li></ul><ul><li>the Westinghouse Electric Corporation (now CBS Corporation) of Pittsburgh, Pennsylvania (first commercial company) </li></ul>
Different types of Media is media that utilizes a combination of different content forms. 1. Multimedia 2. Hypermedia It is used as a logical extension of the term hypertext, in which graphics, audio, video, plain text and hyperlinks intertwine to create a generally non-linear medium of information.
usually refers to electronic media that work on digital codes. 3. Digital Media 4. Mass Media is a term used to denote a section of the media specifically envisioned and designed to reach a very large audience such as the population of a nation state. 5, News Media refers to the section of the mass media that focuses on presenting current news to the public. These include print media (newspaper, magazines); Broadcast Media (radio station, television stations, television networks), and increasingly Internet-based media (World Wide Web pages, weblogs).