Alexander Graham Bell (3 March 1847 - 2 August 1922) is known more generally by the world as the inventor of the telephone. Very few people know that Graham Bell has made many more useful inventions not only in telephone but also in the field of communication technology. He is also credited with inventing optical-fiber systems, photophones, bell and decibel units, metal-detectors, etc. All these are based on such technology, without which communication revolution can not be imagined. Graham Bell was born in Edinburgh, Scotland.

Graham Bell's prodigious talent can be gauged from the fact that he had graduated at the age of thirteen. It is also very surprising that he became famous as a great music teacher at the age of only sixteen. Disability is not less than a curse for anyone, but Graham Bell did not allow disability to become a curse. Actually, Graham Bell's mother was deaf. Graham Bell used to be very sad and disappointed due to his mother's inability to listen, but he never let his disappointment hinder his path to success. He thought it better to give his disappointment a positive mode. This was the reason that he managed to make such an instrument for those unable to listen with the help of sound science, which is still no less than a boon for deaf people.

It would probably not be wrong to say that Graham Bell spent his entire life working for deaf people. His mother was deaf, unable to hear Graham Bell's wife and a special friend of his. Since he had felt the pain of such people very closely from the beginning, he could understand better what should be done for the betterment of his life. It is possible that Graham Bell could have succeeded in inventing the telephone due to these special circumstances of his life.

Graham Bell had a keen interest in sound science since childhood, so at the age of 23, he made a piano whose melodious voice could be heard far and wide. For some time he was also a teacher in the subject of speech technology. During this time also he continued his efforts and succeeded in making an instrument which was not only capable of sending musical notes, but could also give articulated speech. This was the oldest model of telephone.

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