Computer-mediated communication (CMC) is defined as any human communication that occurs through the use of two or more electronic devices. While the term has traditionally referred to those communications that occur via computer-mediated formats (e.g., instant messaging, email, chat rooms), it has also been applied to other forms of text-based interaction such as text messaging. Research on CMC focuses largely on the social effects of different computer-supported communication technologies. Many recent studies involve Internet-based social networking supported by social software. (Wikipedia).
Popular forms of CMC include e-mail, video, audio or text chat (text conferencing including “instant messaging”), bulletin boards, list-servs and MMOs. Any means of communication via computer are call CMC. Facebook, Instagram, Twitter, latest application on the phone like WeChat, WhatsApp, BeeTalk, and popular Blogspot and online Forums are all CMC. People can communicate anytime, anywhere they pleases.
This distinct way of communicating is one of the easiest step to get to know people all around the world, their culture, life styles, common issues, controversies, political views etc. CMC connects people around the globe.