Countries in the world regard the development of
education technology as a major driving force for education
and the nation, making the trends of the comprehensiveness
of audio-visual technology and computer technology, the
digital signal processing, information storage disc
technology, intelligent teaching process. In the status and
role of education system, educational technology studies
more topics related with modern science and technology; it
makes full use of modern scientific and technological
achievements, as the media of dissemination of educational
information to provide rich material for the education
foundation; it absorbs scientific and systematic thinking
ways to make educational technology more times, scientific
and systematic.