COMPUTER CONCEPTS A computer is a machine that processes data and performs tasks according to a set of instructions. To do anything‚ computer must be give specific directions to follow. They get these directions from software. Software‚ such as that used for word processing‚ is a set of step-by-step instruction for the computer‚ written by computer programmers in a programming language like BASIC‚ Pascal‚ or C. Computers also get instructions from you‚ the user. When you use the mouse (more
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CHAPTER ONE COMPUTER SYSTEM FUNDAMENTALS 1.1 Computer System as a Universal Tool A computer system is an electronic device that accepts inputs; transform the input through some processes to obtain output or information that can aid effective decision making. Information originated from raw data which by its own simple definition is any raw fact or figure that can be subjected to a form of manipulation before it can be trusted for decision making. Data can originate from various sources depending
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Three classifications of computers are home computers‚ portable computers‚ and business computers. There are a lot of ways to describe computers. They imply the size‚ expected use or capability of the computer‚ speed‚ and how much storage capability is there. Computers can apply to virtually any device that has a central processing unit in it. People think of a computer as a device that receives input through the internet‚ process it through a motherboard and displays the results
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Introduction: Computer Generations History of development of computers down the years is referred as Computer Generations. A generation refers to research and development done to improve the performance of computers. It also refers to the new technical breakthroughs and advancements in computers. A generation has significantly decreased the size of computers and increased the performance. With the increase in speed‚ power and memory and decrease in size‚ each generation has brought down the cost
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The advent of computers has revolutionized the workplace and redefined operational practices. The use and deployment of computers‚ computer systems and information technology (IT) applications in every aspect of business is now commonplace. The recent application and adoption of Web-based‚ information and telecommunication technologies has force-multiplied the capabilities and benefits of computers. The importance of computers in business cannot be overstated. Collaboration o Businesses are using
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comp A laptop is a smaller‚ lighter and more compact version of a desktop computer. It has all you need from a desktop computer in one small package. It is a mobile pc thus allowing it to be used and brought anywhere. This makes a laptop very popular nowadays. Don’t be fooled by a laptop’s small size because it has many parts. The upper part is the screen which is equivalent to a desktop’s monitor. In newer models‚ a webcam is incorporated in the upper part of the laptop. The lower part is where
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TASKBAR In the graphical user interface (GUI) for a computer operating system or application‚ a taskbar is a visual device on the desktop that typically shows the user which applications (tasks) are currently active and running. Combined window management and program launching As noted above‚ the Windows 7 taskbar combines two previously separate bits of functionality: Open window management and program launching/file opening. Prior to Windows 7‚ the taskbar was generally used only to manage open
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13 Prof. Anatoly Sachenko Computer Hardware I. LECTURE OVERVIEW Foundation Concepts: Computer Hardware‚ reviews trends and developments in microcomputer‚ midrange‚ and mainframe computer systems; basic computer system concepts; and the major types of technologies used in peripheral devices for computer input‚ output‚ and storage. Computer Systems – Major types of computer systems are summarized in Figure 13.2. A computer is a system of information processing components that perform
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COMPUTERS IN THE WORKPLACE JOSEPH HOOVER ENGLISH COMPOSITION Computers in the Workplace Computers have become one of the most used devices in the workplace. Whether it’s the intern just working a summer job‚ or the CEO‚ the computer is used in every level of a company. These devices are used in many ways to include typing reports‚ creating and editing websites‚ making presentations‚ or just browsing the internet. However‚ when it comes to providing the employee with the right laptop‚ it all
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erUNIT 1 INTRODUCTION TO COMPUTERS Structure 1.1 1.2 1.3 Introduction Objectives Introduction to Computers Why Computer? Evolution of Computers 1.3.1 The First Computer 1.3.2 Some Well Known Early Computers 1.3.3 Computer Generations 1.4 1.5 1.6 1.7 1.8 1.9 Components of a Computer Hardware vs Software System vs Applications Software Bits and Bytes Input and Output Devices RAM/ROM 1.10 Secondary Storage Devices 1.11 Summary 1.12 Answers to SAQs 1.1 INTRODUCTION This unit aims
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