Computer fundamentals unit 1, Schemes and Mind Maps of Computer Fundamentals

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HISTORY OF COMPUTER History of computer could be traced back to the effort of man to numbers. This process of counting’of |arge numbers generated various systems of numeration like Babylonian system of numeration, Greek numeration, Roman system of numeration and indian system of numeration. Out } count large system of of these the Indian system of numeration has been Accepted universally. Itis the basis of modern decimal system of numeration (0, 1, 2, 3,4, 5, 6 Ty 8, 9). Later you will know how the computer solves all calculations based on decimal system. But-you will be surprised to know that the computer does not understand the decimal system and uses binary system of numeration for processing. We will briefly discuss some of the path-breaking inventions in the field of computing devices, The First Computer In 1822, Charles Babbage, a professor of mathematics at Cambridge University, s achine called “Difference Engine”. A completely automatic t machine | thematical problem. It contained all the essential components of _ Babbage is also regarded as Father’ of the modern es — | ution of computer started from 16th century and resulted ioday. The present day computer, however, has also uring the last fifty years. This period, during which the g circuits used. snerations of computers place, can be divided into five distinct phases known jters. Each phase is distinguished from others on the eneration comp. Brd Generation comp. 4th Generation comp. Use of large scale and very| arge scale IC'S Increased storage | transistor an! S seoflCS | lore flexibility with /p and ge capacity , Pp erformance maller size and bette ‘aster end smaller 96