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The recent technical advantages consist in the benefits derived from satellite or internet communication. Various types of electronic & electronic equipment, computer based networking system, cellular phone have added new dimensions. Fax is playing a vital role in the development of telecommunication system. A two way transmission system works in a fax machine. A telephone connection is required in order to operate it. It runs on electricity. It is capable of transmitting and receiving printed matter. Fax is becoming popular day by day. It is suitable for official  correspondence. It has become an indispensable part in today's trade, business & commerce. It is cheaper & quicker. But unfortunately, a lot of people of  poor countries have not yet access to such facilities.

Electronic mail popularly known as e-mail is the communication of textual message via electronic means. In this system  personal computer, a modem & a telephone connection are necessary. It requires an e-mail account number. E-mail is delivered to individual electronic mail boxes based in computers. Messages can be transmitted from one country to another within seconds. It is far cheaper than telephone calls. Privacy is ensured as the e-mail is delivered to an individual’s mail box which can be accessed or opened by the consumption of paper in the office. Nowadays trade & commerce have become greatly depended on this speedy mode of communication. E-mail gives us an opportunity to face the international arena. It establishes almost instantaneous communication to any part of the world & maintains wide information network with remote areas of the globe.