Computer has become an inseparable part of everyday life. Since the introduction of electronic media in general and the Internet in particular, more and more people have been using the Internet to communicate as a quick and reliable means of information transfer. Alongside the ever-increasing interest in electronic media, the Internet has been gaining ground to fulfill a variety of purposes not only as an intra- and inter-personal communication medium but also as a pedagogical tool facilitating language learning and teaching. Therefore, the purpose of this study is to provide an account of the benefits and positive contributions found in previous studies which text-based Computer-Mediated Communication (CMC) has to offer in language learning and teaching. This study also provides an overview on CMC, its modes, and relevant definitions. The impact of CMC on language education and language development will be dealt with as well.