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COMPUTING ESSENTIALS 2013 INTRODUCTORY EDITION
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CHAPTER 1: INFORMATION TECHNOLOGY, THEINTERNET, AND YOU 2Introduction 4Information Systems 5People 6Software 9 System Software 9 Application Software 9Hardware 10 Types of Computers 11 Microcomputer Hardware 12Data 15 Connectivity, the Wireless Revolution, theInternet, and Cloud Computing 16Careers in IT 17A Look to the Future: Using and UnderstandingInformation Technology Means Being ComputerCompetent 18 Visual Summary 19 Key Terms 22 Making IT Work for You 25 Explorations 26 Ethics 27 Environment 28CHAPTER 2: THE INTERNET, THE WEB, ANDELECTRONIC COMMERCE 30Introduction 32The Internet and the Web 32Making IT work for you:iPods and Video from the Internet 34Access 35Providers 35Browsers 35Communication 38E-Mail 38Instant Messaging 39Social Networking 40Blogs, Microblogs, and Webcasts,Podcasts, Wikis 41Making IT work for you: Twitter 44Search Tools 46Search Engines 46Web Directories 46Metasearch Engines 47Specialized Search Engines 47Content Evaluation 48Electronic Commerce 49Business-to-Consumer E-Commerce 50Consumer-to-Consumer E-Commerce 50Security 51Cloud Computing 52Web Utilities 54Plug-ins 54Filters 54File Transfer Utilities 55Internet Security Suites 56Careers in IT: Webmaster 57A Look to the Future: Web-Accessible RefrigeratorsWill Automatically Restock Themselves 58Visual Summary 59Key Terms 63Making IT Work for You 66Explorations 67Ethics 68Environment 69 CHAPTER 3: BASIC APPLICATION SOFTWARE 70Introduction 72Application Software 72Common Features 72Making IT work for you:Speech Recognition 74Word Processors 76Features 76Case 76Spreadsheets 79Features 79Case 80Database Management Systems 84Features 84Case 84Presentation Graphics 87Features 87Case 87Integrated Packages 89Case 89Software Suites 90 Productivity Suite 90 Cloud Computing 91 Sharing between Programs 91 Specialized and Utility Suites 91Making IT work for you:Google Docs 92Careers in IT: Computer Trainer 94A Look to the Future: Agents Will Help Write Papers,Pay Bills, and Shop on the Internet 95 Visual Summary 96 Key Terms 99 Making IT Work for You 102 Explorations 103 Ethics 104 Environment 105CHAPTER 4: SPECIALIZED APPLICATIONSOFTWARE 106Introduction 108Specialized Applications 108Graphics 109 Desktop Publishing 109 Image Editors 109 Illustration Programs 109 Image Galleries 109 Graphics Suites 111Audio and Video 111Making IT work for you:Digital Video Editing 112Multimedia 114 Links and Buttons 114 Multimedia Authoring Programs 114Web Authoring 115 Web Site Design 115 Web Authoring Programs 116Artificial Intelligence 116 Virtual Reality 118 Knowledge-Based (Expert) Systems 118 Robotics 119Mobile Apps 120 Apps 120 App Stores 121Careers in IT: Desktop Publisher 122A Look to the Future: Robots Can Look, Act, andThink Like Us 123 Visual Summary 124 Key Terms 127 Making IT Work for You 130 Explorations 131 Ethics 132 Environment 133CHAPTER 5: SYSTEM SOFTWARE 134 Introduction 136System Software 136Operating Systems 137Functions 137Features 138Categories 139Desktop Operating Systems 140Windows 140Mac OS 140UNIX and Linux 142Virtualization 142Mobile Operating Systems 143Utilities 144Windows Utilities 144Utility Suites 148Device Drivers 148Making IT work for you:Virus Protection 150Careers in IT: Computer SupportSpecialist 152A Look to the Future: Self-Healing Computers CouldMean an End to Computer Crashes and PerformanceProblems 153Visual Summary 154Key Terms 157Making IT Work for You 160Explorations 161Ethics 162Environment 163 CHAPTER 6: THE SYSTEM UNIT 164 Introduction 166 System Unit 166Categories 166Components 169 Electronic Data and Instructions 169Numeric Representation 170Character Encoding 170System Board 171Microprocessor 172 Microprocessor Chips 173 Specialty Processors 174Memory 174 RAM 174 ROM 175 Flash Memory 175Expansion Slots and Cards 176Bus Lines 177Making IT work for you: TV Tuner Cardsand Video Clips 178 Expansion Buses 180Ports 180 Standard Ports 181 Specialized Ports 181 Legacy Ports 182 Cables 182Power Supply 183Careers in IT: Computer Technician 183A Look to the Future: As You Walk out the Door, Don'tForget Your Computer 185 Visual Summary 186 Key Terms 189 Making IT Work for You 192 Explorations 193 Ethics 194 Environment 195 CHAPTER 7: INPUT AND OUTPUT 196Introduction 198What Is Input? 198Keyboard Entry 198Keyboards 199Features 199Pointing Devices 200Mice 200Touch Screens 202Joysticks 202Stylus 202Scanning Devices 203Optical Scanners 203Card Readers 204Bar Code Readers 205Character and Mark RecognitionDevices 205Image Capturing Devices 206Digital Cameras 206Digital Video Cameras 206Audio-Input Devices 207Voice Recognition Systems 207Making IT work for you: WebCams andInstant Messaging 208What Is Output? 210Monitors 210Features 210Flat-Panel Monitors 211Cathode-Ray Tubes 211Other Monitors 211Making IT work for you:using E-Books 213Printers 214Features 214Ink-Jet Printers 215Laser Printers 215Other Printers 216Audio and Video Devices 217Portable Media Players 217Combination Input and Output Devices 217Fax Machines 217Multifunctional Devices 217Internet Telephones 218Careers in IT: Technical Writers 219A Look to the Future: Crashing through the ForeignLanguage Barrier 220Visual Summary 221Key Terms 224Making IT Work for You 227Explorations 229Ethics 230Environment 231 CHAPTER 8: SECONDARY STORAGE 232Introduction 234Storage 234Hard Disks 235Internal Hard Disk 236External Hard Drives 236Performance Enhancements 237Optical Discs 238Compact Disc 238Digital Versatile Disc 239Blu-ray Disc 239Solid-State Storage 240Solid-State Drives 240Flash Memory 240USB Drives 241Cloud Storage 241Making IT work for you:Cloud Storage 242Mass Storage Devices 245 Enterprise Storage System 245 Storage Area Network 246Careers in IT: Software Engineer 246A Look to the Future: Your Entire Life Recorded ona Single Disk 247 Visual Summary 248 Key Terms 251 Making IT Work for You 254 Explorations 255 Ethics 256 Environment 257 CHAPTER 9: COMMUNICATIONSAND NETWORKS 258Introduction 260Communications 260 Connectivity 260 The Wireless Revolution 261 Communication Systems 261Communication Channels 262 Physical Connections 262 Wireless Connections 263Connection Devices 265 Modems 265 Connection Service 266Data Transmission 267 Bandwidth 267 Protocols 267Networks 268 Terms 268Network Types 270 Local Area Networks 270 Home Networks 270 Wireless LAN 271 Personal Area Network 272 Metropolitan Area Networks 272 Wide Area Networks 272Network Architecture 273 Topologies 273Making IT work for you: HomeNetworking 274 Strategies 276Organizational Networks 277 Internet Technologies 277 Network Security 277Careers in IT: Network Administrator 279A Look to the Future: Telepresence Lets You Be Therewithout Actually Being There 280 Visual Summary 281 Key Terms 284 Making IT Work for You 287 Explorations 288 Ethics 289 Environment 290 CHAPTER 10:PRIVACY, SECURITY, AND ETHICS 292 Introduction 294 People 294 Privacy 295Large Databases 295Private Networks 298The Internet and the Web 299Online Identity 303Major Laws on Privacy 303 Making IT work for you: SpywareRemoval 304 Security 306Computer Criminals 306Computer Crime 307Other Hazards 310Measures to Protect ComputerSecurity 312 Ethics 315Copyright and Digital RightsManagemen t 315Plagiarism 316 Careers in IT: Cryptographer 317 A Look to the Future: A Webcam on EveryCorner 318Visual Summary 319Key Terms 322Making IT Work for You 325Explorations 326Ethics 327Environment 327 CHAPTER 11:YOUR FUTURE AND INFORMATIONTECHNOLOGY 328 Introduction 330 Changing Times 330 Technology and Organizations 331New Products 331New Enterprises 332New Customer and Supplier Relationships 332 Technology and People 333334Cynicism 333Naivete 333Frustration 333Proactivity 333How You Can Be a Winner 334 Stay Current 334 Maintain Your Computer Competency 335 Develop Professional Contacts 335 Develop Specialties 335Making IT work for you: Locating JobOpportunities Online 336 Be Alert for Organizational Change 338 Look for Innovative Opportunities 338Careers in IT 339A Look to the Future: Maintaining ComputerCompetency and Becoming Proactive 340 Visual Summary 346 Key Terms 348 Making IT Work for You 351 Explorations 352 Ethics 353The Evolution of the Computer Age 350The Buyer's Guide: How to Buy Your OwnMicrocomputer System 360The Upgrader's Guide: How to UpgradeYour Microcomputer System 365Glossary 3 69Credits 000I ndex 000

About the Author

Tim O'Leary has taught courses at Stark Technical College in Canton, Ohio, and at Rochester Institute of Technology in upstate New York. He currently is a professor emeritus at Arizona State University. Linda O'Leary offered her expertise at Arizona State University for several years as an academic advisor. She also presented and developed materials for major corporations, such as Motorola, Intel, Honeywell, and AT&T, as well as various community colleges in the Phoenix area.

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