Tele-education has a long history beginning with systems like that for teaching children in Australian Outback, the British Open University and other such organizations. These built on the idea of correspondence courses where course materials are sent periodically by post and augmented the experience with broadcasts either on radio or on TV. The problem of student isolation was addressed partially through techniques such as telephone access or two-way radio links with teachers. At the end of 1980s, the vest majority of distance education throughout the worlds was still primarily print-based.
Technologies used for distance education are evolving from primarily 'one-way" technologies and applications such as computer aided learning, computer based training and computer aided instruction, to more 'two-way" technologies and applications such as computer mediated communications and computer conferencing systems for education. The significance of 'two-way" technologies is that they allow foe interaction between participant and tutors, and perhaps even more significantly amongst participant themselves. This development has allowed and in some senses force researches to look more closely at the impact of educational environment, on the students learning experience.
In the future, it is expected that the telecommunications-based technologies to become the primary means of delivery of distance teaching. The reasons for this are as follows:
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Emergence of Tele-education
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a much wider range of technologies are becoming more accessible to potential distance education participants
the costs of technological delivery are dropping dramatically
the technology is becoming easier to use for both tutors and learners
the technology is becoming more powerful pedagogically
education centers will find it increasingly difficult to resist the political and social pressures of the technological imperatives.
The Emergence of Tele-education
Radical changes in the computing infrastructure, spurred by multimedia computing and communication, will do more than extend the educational system, that is revolutionize it. Technological advances will make classrooms mush more accessible and effective. Today, classroom education dominates instruction from elementary school to graduate school. This method has remained popular for a very long time and will probably persist as the most common mode of education.
However, classroom education has its problems, that is the effectiveness decline with increase in the number of students per class. Other pressures affect the instructors, many of whom are not experts in the material they must teach, are not good 'performers" in class, or simply are not interested in teaching. The biggest limitation of the classroom instruction is that a class meets at a particular time in a particular place. This essentially requires all students and the instructors to collect in one spot for their specified period. But with the emerging technology, these problems can be overcome.
Reasons for studying Tele-education
The current Tele-education systems that have been applied in some countries are generally of multipoint transmission technique. It is found that, this kind of transmission technique having several problems or defects. Mostly, problems raised during the application of the system. One of the significant problems raised is that, for the multipoint transmission, the signals or information transmitted by the sender do not completely received by the receiver.
This problem is might be due to error that occurs during the transmission of the signals or information. Another problem is lag of transmission. For this case, the signals or information transmitted do not arrive at all the receiver at the same time, for example, the question raised by the lecturer might not received by the students at the same time and this is not a good environment for Tele-education system. Some receiver receives the signals earlier than the others and some later or even not receives at all. Therefore, it is important to study the Tele-education technology from time to time to overcome these problems so that the Tele-education system could provide a more effective way of learning environment.
In order to have a lecture from, for example, a very famous professor from other country would require him to come at our place. But the amount of money spent for paying him to give lecture would be very expensive and this also would cause troublesome for him. However, this problem can be solved with Tele-education system in which the professor does not need to go anywhere else to give his lecture. This would save a lot of expenses and time.
Another reason is that, in normal classes the learning process would not be very effective if the number of students in a class is very big. This is because the lecturer alone can not coordinate such a large class. With Tele-education system, one lecturer could deliver his lecture to as many students as possible effectively in a way that a large number of students from different sites having the same lecture at once.
The purpose of this research is to study the current Tele-education system that has been applied in some countries. This study covers the background of Tele-education; that is its definition, the publications of Tele-education; that is any papers that discuss about Tele-education as a whole, the performance of applied Tele-education, and also the technology of Tele-education; that is its network architecture. But the main purpose of this study is to understand the Tele-education system that have been applied in another country and try to implement it in our country.
CCITT Committee Consultatif International Telegraphique et Telephonique
ISDN Integrated Services Digital Network
ISO International Standard Organization
JAMES Joint ATM Experiment on European Services
SLIP Serial Line Internet Protocol
TCP-IP Transmission Control Protocol - Internet Protocol
Since Tele-education is a very new technology that is popularly discussed today, it is quite difficult for me to find any books that discuss about Tele-education from the library. Therefore, the easiest and the fastest way to gather information relating this project is via the Internet. I have surfed and found many interesting sites that discuss about Tele-education. Besides surfing, I also have contacted several people who are involved in this area, Tele-education, by e-mail . But unluckily, this does not really help because most of them did not reply. Besides using the Internet, I also get the information for this project from the IEEE Database at the library of Universiti Telekom.
What is Tele-education? Before discussing about what Tele-education means, lets look at what distance learning is. This is because Tele-education and distance learning are very related to each other. Distance learning is the acquisition of skills and knowledge through electronic communications that allow student and instructor to be separate in either in time or space. The to distance learning is 'asynchronous learning" which can be defined loosely as learning at different time. It is a highly flexible method of training because the sender and receiver do not need to be synchronized in space or time. But Tele-education is more than that of distance learning. In Tele-education, not only asynchronous but synchronous learning is also made possible. In other words, Tele-education is the evolution of distance learning.
As stated before, asynchronous learning environment is not real-time environment. It is a self-study-based application and is accessed via the Internet to a server. The requirement to the student is only an ordinary PC with standard software and Internet access. This application is applicable for a large amount of users who can access the course independent of each other. The combination of the lecture-part, group-work-part, and self-study-part is another type of Tele-education learning environment, which is synchronous learning. It is a real-time environment. In this environment, students and lecturers can interact with each other simultaneously.
Tele-education use the technology of video teleconferencing that allows two or more parties at different geographical area to interact with each other or to have learning process together. But people usually get confused whether video teleconferencing can be considered as Tele-education as well. Tele-education is actually different with video teleconferencing in a way that Tele-education usually involve a large number of people as compared to video teleconferencing, that is, it is in video teleconferencing many people use a single monitor to see other people at other area but in Tele-education, students have their own monitor that can be used not only to see their lecturer and colleagues but also to send and receive educational materials.
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