HISTORY OF COMPUTERS Historical records will tell us that man has invented three types of devices to assist him in calculating and processing data. These devices could be classified into: a) Manual-mechanical b) Electromechanical c) Electronic 2000 BC - MECHANICAL COMPUTER THE ABACUS * Computations are done by sliding beads on a wire arranged on a tray. Came from the Greek word abax meaning flat surface John Napier(1617) – Logs and Bones * a Scotsman‚ invented
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Definition of computer and parts of computer. 4th Week: Data and information 5th Week: Input devices & Output devices. 6th Week: Classification and uses of computer. 7th Week: Mid – Term Test. 8th Week: Revision of terms work 9th Week: Computer peripherals‚. 10-11th Week: Revision. 12-13th Week: Examination. COMPUTER SCIENCE SECOND TERM SCHEME OF WORK (JSS 1) 1ST Week Revision of first term work 2nd Week Computer parts. Hardware
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Forman 28th March‚ 2012 ENG 102 IJC Effects of Computers on Society Discoveries and invention of devices are always welcomed till we‚ humans find a way to abuse its benefits and be adversely affected by it. Computers have influenced all sphere of modern society in a big way by the way people keep in touch with each other‚ the way people entertain themselves using computer and the way people buy and sell things. In todays present‚ although computers have changed in many different ways all activities
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Date | Event | c. 2400 BC | The abacus - the first known calculator‚ was probably invented by the Babylonians as an aid to simple arithmetic around this time period. This laid the foundations for positional notation and later computing developments. | 1300 | Ramon Llull invented the Lullian Circle: a notional machine for calculating answers to philosophical questions (in this case‚ to do with Christianity) via logical combinatorics. This idea was taken up by Leibniz centuries later‚ and is thus
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of components that work together to realize some objectives forms a system. Basically there are three major components in every system‚ namely input‚ processing and output. Input Output Processing Fig. 1.1: Basic System Components 2 :: Computer Applications In a system the different components are connected with each other and they are interdependent. For example‚ human body represents a complete natural system. We are also bound by many national systems such as political system‚ economic
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Computer Simulation * A software program that runs on any computer that attempts to simulate some phenomenon based on a scientist’s conceptual and mathematical understanding of the given phenomenon. * The scientist’s conceptual understanding is reduced to an algorithmic or mathematical logic‚ which is then programmed in one of many programming languages (Fortran‚ C‚ C++‚ etc.) and compiled to produce a binary code that runs on a computer. * Have become a useful part of modeling
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History of Computers Glenn G. Fabia Department of Computer Science Ateneo de Naga University A typical computer operation back when computers were people. Counting Tables History of Computers 2 A Modern Day Abacus (Oldest surviving‚ 300 B.C) Note how the abacus is really just a representation of the human fingers: the 5 lower rings on each rod represent the 5 fingers and the 2 upper rings represent the 2 hands. History of Computers 3 Napier’s Bones In 1617 John Napier
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"The Use of Computers in the Educational System" The processing and uses of information are undergoing an unprecedented technological revolution. Not only are machines now able to deal with many kinds of information at high speed and in large quantities but also it is possible to manipulate these quantities of information so as to benefit from them in entirely novel ways. This is perhaps no where truer than in the educational system. The computer makes the individualization of instruction
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GENERATION OF COMPUTERS The term generation indicates the type of technology used in the computer construction. As new technology was emerging‚ it was being used in the making of computer. The new technology improved the speed‚ accuracy and storage capacity of the computers. Different technologies have been used for computers in different times. Therefore‚ computers can be divided into five generations depending upon the technologies used. These are: First Generation (1940 - 1956) Second
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Travel programs are frequently viewed on our televisions. Many of them can be fairly similar in form‚ purpose‚ audience‚ language and context‚ but they also have an individual style to make them different from other travel programs. ‘Getaway’ and ‘Pilot Guides’ are two travel programs which have been studied in class. The context of the two travel programs involves the fact that ‘Pilot Guides’ is a British travel program screened in the United Kingdom‚ whereas ‘Getaway’ is an Australian travel
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