With increasing popularity of computer games‚ and multimedia home PC users often need an unexpensive computer system upgrade. By building a custom computer one is able to combine componenets‚ and operating system to provide maximal gaming performance. Computers are often called number manipulators‚ because of their ability to run millions of mathematical operations per second (White 43). Computers use binary system of numbers‚ which allows them to operate system of microscopic switches called transistors
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Computer Technology Being a kid sitting around with your friends‚ there was always that one person this said‚ do you think this will ever happened? When I grow up all I will have to do will say door open to get in my house‚ everything else will be done for me. now‚ much to my surprise this day has now arrived. The arrival and utilization of computers in today’s world is absolutely unbelievable. Things can be done with computers that could have never been done in the past. we have security
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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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A computer is an electronic device that can receive a set of instructions or program and the carry out this program by performing calculations on numerical data or by compiling and correlating other forms of information. ("Computer" Encarta). It also performs calculations and processes information with astonishing speed and precision. Computer Technology has improved our lives. It will continue to affect our future which will lead to an easier‚ less complicated lifestyle‚ with more job opportunities
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COMPUTER ADDICTION Addiction - "a habit so strong that one cannot give it up." We are all aware that people form addictions to many things‚ from cocaine to gambling. References to alcoholism‚ workaholism‚ even chocoholism‚ are commonplace throughout our society. The idea that people can form addictions to computing is a relatively new one‚ but quickly gaining ground. Perhaps some day the word "netaholism" will be as widely-used as the others; being a "user" may have more connotation than we realize
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Laptop Computer vs. Desktop Computer A laptop is a computer which is designed to be portable. Usually this entails making sacrifices in terms of performance and utility. Laptops are intended for people who travel a lot and need a computer which can go with them. A desktop computer is meant to be stationary. This usually results in a lower price and better options for upgrading. Desktops are intended for permanent workstations and generally have more power and storage capacity than laptops.
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Computer Mouse Mouse is a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad. The main goal of any mouse is to translate the motion of your hand into signals that the computer can use. The mouse was first invented by Douglas Engelbart in 1964 and consisted of a wooden shell‚ circuit board and two metal wheels that came into contact with the surface it was being used on. Six years after Engelbart made the mouse they
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Computer Mouse: Consumer Driven Innovation The computer mouse controls the pointer on a computer screen‚ allowing a user to navigate throughout programs‚ websites‚ etc. The mouse is moved around a surface by the user’s hand in order to translate that movement to the pointer on the computer screen. Computers were only invented shortly before the earliest mice were developed‚ and there were very few computers around. There was little demand for an invention like this‚ but before the mouse was invented
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she knew what it involved she had her arm out ready for her bloods to be taken‚ she thought it wouldn’t hurt because it has always gone ok for her with minimal distress and pain so she wouldn’t be expecting that experience. Now the behaviour has changed and gets distressed when she sees the nurse with the needle. Another thought would be is she afraid of the nurse or the needle. Does the patient feel under pressure now to have her bloods taken. Initial thoughts One of my family members called
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Computer Security Many commercial software packages are designed with computer security features that control who can access the computer. These types of access controls use a process called identification and authentication. Identification verifies that the user is a valid user‚ and authentication verifies that the user is who he or she claims to be. Three common methods of authentication are remembered information‚ possessed objects‚ and biometric devices. With remembered information‚ a
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