UNIT - I BASIC STRUCTURE OF COMPUTERS FUNCTIONAL UNITS A computer consists of five functionally independent main parts. They are‚ ➢ Input ➢ Memory ➢ Arithmetic and logic ➢ Output ➢ Control unit Basic functional units of a computer [pic] The operation of a computer can be summarized as follows The computer accepts programs and the data through an input and stores them in the memory.The stored data
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Introduction to Computer Viruses It’s Saturday morning. You boot up your Windows 98 computer and lo and behold‚ the graphics on the desktop are a mirror image of what they should be. Congratulations‚ you have a computer virus! According to "Virus Bulletin‚" the Oxfordshire‚ England-based technical journal that tracks viruses‚ this new virus flips any uncompressed bitmaps horizontally‚ but only on Saturdays. This bulletin credits GriYo of the 29A virus-writing group as the author of this 32-bit
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PRELIM COMPUTER What is a Computer? A computer is an electronic machine that can be programmed to accept data (input)‚ process it into useful information (output)‚ and store it in a storage device for future use Characteristics of a Computer •It’s a machine. •It is electronic. •It is automatic. •It can manipulate data. •It has memory •It has logical function Capabilities of a Computer • Speed • Accuracy • Repetitiveness • Storage • Programmable Limitations of a Computer • Cannot operate without
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BYTE 1 Teaching Guide Contents Introduction to the series For the instructor Introduction to the Teaching Guides Features of the Teaching Guides A practical approach Issues involved in using computers Ideas on class management Some ideas for practical application Unit 1: The evolution of computers Teaching objectives Learning outcomes Introduction for the teacher Sample lesson plan for a 40-minute period Suggested answers to end-of-unit questions Additional information for the teacher Activity
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COMPUTER MODELS FOR BUSINESS DECISIONS LECTURE 01: MODELLING BASICS Jojo Lartey Department of Information Technology Methodist University College Ghana Dansoman 11 March‚ 2013 Jojo Lartey (MUCG) MUIT 404 Lecture-One March 2013 1 / 25 Overview 1 2 3 4 5 6 7 L ECTURE O BJECTIVES INTRODUCTION MODEL BUILDING METHODS MODEL CATEGORIES STAGES OF MODEL BUILDING MODEL BUILDING TECHNIQUES SUMMARY Jojo Lartey (MUCG) MUIT 404 Lecture-One March 2013 2 / 25 L ECTURE O
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Computer graphics are graphics created using computers and‚ more generally‚ the representation and manipulation of image data by a computer. The development of computer graphics has made computers easier to interact with‚ and better for understanding and interpreting many types of data. Developments in computer graphics have had a profound impact on many types of media and have revolutionized animation‚ movies and the video game industry. Overview The term computer graphics has been used in a broad
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HISTORY OF COMPUTERS The abacus was an early aid for mathematical computations. Its only value is that it aids the memory of the human performing the calculation. A skilled abacus operator can work on addition and subtraction problems at the speed of a person equipped with a hand calculator. The abacus is often wrongly attributed to China. In fact‚ the oldest surviving abacus was used in 300 B.C. by the Babylonians. The abacus is still in use today‚ principally in the far east. A modern abacus
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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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Warf Computers Financial Performance Analysis Prepared by Angus Jones & Partners‚ LLC Agenda Company overview Company direction & new product info Company financials Balance Sheet Income Statement Cash Flow Analysis Ratio Analysis Expansion plan analysis Overall recommendations Angus Jones & Partners‚ LLC Company Summary Founded 15 years ago Small initial investment to start company The same group of investors has supplied the limited additional funds needed by the company in the
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David Gray November 16th‚ 2012 Professor Riede English 1101 The Risks and Dangers of Computer Hacking Computer hackers become more intelligent every day. Companies attempt to make technology hacker-free‚ which is not plausible. All this does is provide the hacker with more assentive to figure out how to get around it. The growth of technology causes new threats and new problems. The consequences hackers face can be extremely severe‚ or minimal if lucky. Many “elite” hackers get off with
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