Answer:
Alexander Graham Bell, an American scientist invented the telephone. It has proved to be an extremely useful invention. It is not considered a luxury today. In fact, it is now a necessity. Even in small cities, towns and villages, more and more people now have telephones.
Each telephone has its own unique number. No two telephones in one city or town can have the same number. To talk to someone, we have to first dial his or her telephone number. Telephones are not only meant for social communication rather they are essential to encourage business. One can place and take orders, enquire, exchange information, book tickets, request for payments, track or report status of delivery, take or cancel appointments, etc.
Telephones are extremely convenient to exchange information. They save time, energy and labour of personally going and have any information. They are a big boon in times of emergency. It is said that in times of need, a telephone can literally save a life. Mobiles or landlines are meant to help us. We should not overuse them to count their disadvantages.
