Communication is a part and parcel of our life. Our life is unthinkable without it. Now businesses are also totally dependent on communication. That is why; it is called the “lifeblood” of an organization. And this process is being highly influenced by information technology. Now we have a variety of technological tools to help us to communicate faster, more frequently and across an increased range. We often hear that our world has become a “global village”. It is because communication system has enabled us to communicate with anybody living anywhere in the world. When we talk to people of far places, we often forget our national boundaries & speak to them like our next door neighbors. The thing that has brought about a revolutionary change in modern communication system is referred as “Information Technology” or IT.
The present age of Information Technology is marked with availability of PC, high speed internet connection, satellite communication system & very fast communication process. Now we are not contented in writing letters, rather we compose drafts & send e-mails. Instant Messaging Software has enabled us to chat with our near & dear ones. This communication system has enhanced national cohesion & integration of heterogeneous cultures. People now need not to go to shops. E-commerce has removed the communication gap between the buyers & sellers. Even information technology is providing students with web-based virtual classroom. Students can ask any question to the teachers can have the reply instantly. Thus distance learning & online educational courses & programs have made the education system better than ever. Intranet & Extranet, with the help of IT, has developed the inside & outside communication system of organizations. Besides, using “real time” communication system now we can buy tickets of trains, ships, aero planes & can make advanced booking of hotel rooms. Mobile devices & wireless telecommunication system ( GSM, GPRS, EDGE, 3G, 4G, Wi-Fi, WIMAX) has made the communication system faster while VOIP (Voice Over Internet Protocol) has reduced the price of voice calls. All above, Information Technology has modernized the whole communication system.