Although students cannot meet face to face, the use of computer based communication, can if used effectively, offset some of the more negative aspects of studying alone. CMC is now being used by a growing number of universities worldwide as a supplement to paper-based materials, audio and video resources and the telephone, because it can incorporate the attributes of each of these into one medium. Collaborative learning is a term referring to the acquisition of skills, knowledge and attitudes arising as a direct result of people working together to explore, discuss and create meaning. For example, talking to a fellow student without being able to hear the tone of their voice or the ever present inflections as a person conveys meaning, can be problematic. Although there is often an absence of para-linguistic content normally present in face to face and even telephone conversations, CMC can still provide an immensely rich communication platform for learners.
Groups can for instance, look back over an entire history of communication between members.
Cumulative records of conversations and collaborations on the computer can provide excellent material for reflection, in depth analysis and evaluation. These records would not exist in such a complete format through other communication media. The advent of CMC presents a number of challenges to teachers. A great deal of development and research is needed to ascertain the full benefits of CMC, and how it can be optimised in a number of learning contexts. CMC promotes group interactions and is an excellent medium to encourage reflective learning, but the task of incorporating CMC into every day education remains a difficult proposition for many.