Communication system has developed astonishingly. With the advancement of science and technology, more improved and useful devices are designed and developed. Gone are the days when people had to depend on the postal system. It was quite difficult to communicate with anyone staying in another part of the world. They had no option other than writing letters to keep in touch with each other. Telegram system assisted in time of emergency. But it even took much time. It was not easy to give information within a short period of time. But, now it is possible. With the advancement of science and technology, communication system has improved a lot.
Many innovative items are designed and developed to make it easy for us to keep in touch with others. Telecommunication technology has improved a lot. Mobile phone is a great invention. It has really become an indispensable item of our life. There … Read More