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.
Physical exercise means the regular movement of the limbs of our body according to rules. It is essential to keep our body fit & mind sound. There lies a close connection between body & mind. We can not think of a sound mind without a sound health. It is physical exercise which enables us to build a good health. Physical exercise makes our body active & the muscles strong. It also improve our power of digestion and blood circulation. It gives strength to our brain. A machine gets rust for want of proper use. Human body is also a machine. It becomes inactive & weak for want of exercise. So we should take regular physical exercise in order to maintain a sound health and lead a happy life.
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