Running head: COMPUTER RECYCLING Computer Recycling June 29‚ 2009 Computer Recycling Over the years‚ tons of electronics equipment with hazardous materials have been thrown away with standard garbage. Over time‚ these materials leak out of the electronics causing damage to the environment. In order to try and reduce the threat‚ many local‚ state and federal governments are enacting legislation that requires proper disposal of old electronics. Most computer equipment becomes outdated anywhere
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HISTORY OF COMPUTER THE PRE-MECHANICAL AGE: 3000 B.C. – 1450 A.D. 1. Writing and Alphabets – Communication First development of signs corresponding to spoken sounds‚ instead of pictures‚ to express words. Around 2000 B.C.‚ Phoenicians created symbols that expressed single syllables and consonants (the first true alphabet) The Greeks later adopted the Phoenician alphabet and added vowels; the Romans gave the letters Latin names to create the alphabet we use today. 2. Paper
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2 Fundamentals of Computer Systems You need to be able to: (a) define a computer system (b) describe the importance of computer systems in the modern world (c) explain the need for reliability in computer systems (d) explain the need for adherence to suitable professional standards in the development‚ use and maintenance of computer systems (e) explain the importance of ethical‚ environmental and legal considerations when creating computer systems. What is a computer system? At its very basic
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A computer system consists of mainly four basic units; namely input unit‚ storage unit‚ central processing unit and output unit. Central Processing unit further includes Arithmetic logic unit and control unit‚ as shown in the figure:. A computer performs five major operations or functions irrespective of its size and make. These are • it accepts data or instructions as input‚ • it stores data and instruction • it processes data as per the instructions‚ • it controls all operations inside a computer
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provided by the sensor and sending the barcode’s content to the scanner’s output port. Biometrics Biometrics[1] (or biometric authentication)[note 1] refers to the identification of humans by their characteristics or traits. Biometrics is used in computer science as a form of identification and access control.[2] It is also used to identify individuals in groups that are undersurveillance.[citation needed] Biometric identifiers are the distinctive‚ measurable characteristics used to label and describe
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SEAFDEC Village‚ Tigbauan‚ Iloilo SYLLABUS IN COMPUTER 1 1st Grading Period 1. Definition of Computer‚ Uses of Computers‚ Things that a computer can and cannot do 2. History of Computers 3. Uses of computers in Different Places 4. Parts of a Computer 5. How a Computer Works 6. The Elements of Computer System 2nd Grading Period 1. How to Turn on and Turn Off a Computer 2. Caring for Your Computer 3. Definition of Operating System 4. Parts
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What are the Parts of Computer? The Parts of a Desktop Computer are: 1. System unit The system unit is the core of a computer system. Usually it’s a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU)‚ or microprocessor‚ which acts as the "brain" of your computer. Another component is random access memory (RAM)‚ which temporarily stores
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KEYPOINT 1: Computer Literacy (Literacy-ability to read/write) Introduction: • How many people in this classroom learn to use computer? As I look around‚ no one in this classroom‚ don’t use computer in their offices. • We are all students of AIC‚ and most likely gone to different basic computer course. • Does studying computer affect the way we communicate? And if so‚ is this a bad thing? Development • As our society‚ increasingly dependent on computers to take care
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or about 62 percent of the American population had at least one home computer. Another statistic is that about 55% of people also have internet on there home computers. In everyday life it is important for a person to have good ethics; this is also true about computer usage. Due to the fact that more then half of the American population owns computers‚ computer ethics are a growing concern in a rapidly changing society. Computer ethics can be broken down in to many topics including piracy‚ hacking
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Build a Computer Computers are one of those technologies that‚ as the years pass‚ get more complicated yet simpler at the same time. The truth is‚ a person need not know anything at all of transistors‚ capacitor or the whole bunch to "build" a computer. All you really need to know are two important things. One is to always keep yourself (electrostatically) grounded‚ and secondly‚ you need to know how to put a jigsaw puzzle together. Now one would ask what a jigsaw puzzle has to do with computers‚ and
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