C. V. Raman, a great Indian physicist, was born in 1888. His father was a lecturer in math and physics, so C. V. Raman was exposed scientific things from an early age. He (attend) Presidency College in 1902, getting his BA in 1904 and MA in 1907. Though he was a brilliant student, there weren't many (chance) for scientists in India at that time. , after finishing his studies, he went to work for the Indian Finance Department. But he still carried out his experimental research on acoustics (声学).
He (offer) a professorship in physics at the University of Calcutta in 1917 and stayed for the next 15 years, (achieve) fame for his research there. In 1930, he won the Nobel Prize for his work on the scattering of light. Raman found light passes through a transparent (透明的) sample of a substance ,most of the light remains unchanged but a small part of it has (differ) wavelengths. This later is (know) as the Raman effect and is useful for physical and chemical (analyse) of gases, liquids and solids, including biological tissue.
The question of who invented the computer cannot be answered with a single name. Throughout history, many different people have helped in the development of this (value) machine. And many date the first important (invent) to the fourth century BC when the abacus was developed.
The fact was the first computer that could store programs (be) the 1949 Electronic Delay Storage Automatic Calculator. It (create) by Maurice Wilkes. From this point forward, many developers helped to make various types of computer.
In the early 1970s, many skilled inventors, including Bill Gates, Steve Jobs, and Stephen Wozniak, did much (develop) personal computers in the form of PCs. By the 1990s, ownership of PCs had become common as production grew (expensive) than before. Also, the development of technology, the size of these machines became smaller so that they could (easy) be used in homes.
There is no doubt that there are so many thinkers and inventors who helped to develop the computer. There are even legal battles over who should be considered as the primary inventors. As matter of fact, it was their joint efforts that led to the development of this most useful machine.
