Hardware (equipment): various "machines" related to the transmission of modern educational information.

Software (teaching materials): recorded movies, tapes, CDs, etc. Carrying modern educational information.

2. According to the application of modern scientific and technological achievements, it can be divided into two categories.

Traditional teaching media: teaching materials, objects, specimens, models, books, etc.

Modern teaching media: visual media-slides and projections.

Audio media-recording, broadcasting, CD.

Audio-visual media-movies, TV, CDs.

Integrated (interactive) media-microteaching, language, computer,

Multimedia platform.

3. According to the reciprocity of information flow, it can be divided into one-way and two-way.