The development of computer networks has been possible thanks to the development achieved by telecommunications, which responds satisfactorily, both technology as economically to the challenge of geographic dispersion. The bandwidth of the transmission means for channelling of large amount of data It involves a course, has increased with coaxial cable, twisted pair and optical fiber, among other technologies. In addition, through the use of satellites might cover geographical areas of the dimension of one or several countries. The exchange of multimedia information in real time, which currently allows local networks, and the processing power of computers connected to them, is the basis for the development of more powerful means of interaction that offered the technology of teleconferencing. Although transmission of multimedia information real-time is primarily limited to local networks, since 1992 ongoing transmissions of digital audio and video in an area of the Internet known as MBONE (Multimedia Backbone) high-speed connections. Techniques for teaching and learning in networks. Multiple authors to study teaching methods that are used in the environment of networks have them categorized according to different criteria.
Of all of them, in our opinion, Morten Paulsen is one that has been one of the most exhaustive investigations. Upon completion in 1995 of his study, he concluded that teaching online techniques assimilated and reproduced in a new context group teaching techniques, quite well-known in the pedagogical field. l identifies four types of teaching techniques in the environment of networks, which categorizes according to the number of participants in the communication as: individual, one-to-one, one-to-many, and many-to-many. (21) To apply any of those techniques within the model telematic of distance education, the use of the services and tools that allow you to work in computer networks is essential. They go from elementary and very important e-mail until the transcendental and revolutionary Word Wide Web, passing through Telnet, FTP, Archie, WAIS, etc.