After the invention of the chip, it became possible to miniaturize the size of electronic gadgets. Bell Laboratories assigned the task of making a small sized handset to their electronics expert Joel Engel and allocated millions of dollars for research. Simultaneously Martin Cooper, a researcher of Motorola Company was also struggling to make a small handset. Ultimately, he was to become successful first. So in recognition of his inventive genius, Motorola Company gave Martin Cooper the privilege of making world’s first mobile phone call.
On the historic day of April 3, 1973 Cooper pressed the handset’s push-buttons in the presence of all the senior executives and researchers and said, ‘Hello!’ to none else but Joel Engel of Bell Laboratories. Martin Cooper gave Engel the ‘happy tidings’ that he had finally succeeded in making the world’s first portable handset.
Martin Cooper was inventor of the first modern type mobile phone. His revolutionary invention made Motorola Company wealthy and himself too! However, the first mobile service in USA was started in 1978 by Bell Company in Chicago city.