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Bab I

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  • 1. Discovering Computers 2010 Living in a Digital World
  • 2. Objectives Overview Define the term, Explain why computer computer, and describe Describe the five literacy is vital to the relationship components of asuccess in today’s world between data and computer informationDiscuss the advantages Define the term,and disadvantages that Discuss the uses of the network, and identifyusers experience when Internet and World benefits of sharing working with Wide Web resources on a network computersSee Page 3 Discovering Computers 2010: Living in a Digital World 2for Detailed Objectives Chapter 1
  • 3. Objectives OverviewDistinguish between system Differentiate among types, Describe the role of each software and application sizes, and functions of element in an information software computers in each category system Explain how home users, Discuss how society uses small office/home office computers in education, users, mobile users, power finance, government, health users, and enterprise users care, science, publishing, each interact with travel, and manufacturing computersSee Page 3 Discovering Computers 2010: Living in a Digital World 3for Detailed Objectives Chapter 1
  • 4. A World of Computers• Computers are everywherePages 4 - 5 Discovering Computers 2010: Living in a Digital World 4Figure 1-1 Chapter 1
  • 5. What Is a Computer?• A computer is an electronic device, operating under the control of instructions stored in its own memory Collects Produces data Processing information (input) (output) Information Processing CyclePage 6 Discovering Computers 2010: Living in a Digital World 5 Chapter 1
  • 6. What Is a Computer?Page 6 Discovering Computers 2010: Living in a Digital World 6Figure 1-2 Chapter 1
  • 7. The Components of a Computer• A computer contains many electric, electronic, and mechanical components known as hardware Input Device • Allows you to enter data and instructions into a computer Output Device • Hardware component that conveys information to one or more people • Case that contains the electronic components of the computer that System Unit are used to process data Storage Device • Holds data, instructions, and information for future use Communications • Enables a computer to send and receive data, instructions, and Device information to and from one or more computers or mobile devicesPages 6 - 8 Discovering Computers 2010: Living in a Digital World 7 Chapter 1
  • 8. The Components of a ComputerPage 7 Discovering Computers 2010: Living in a Digital World 8Figure 1-3 Chapter 1
  • 9. Advantages and Disadvantagesof Using Computers Advantages of Disadvantages of Using Computers Using Computers Speed Health Risks Reliability Violation of Privacy Consistency Public Safety Storage Impact on Labor Force Communications Impact on Environment Discovering Computers 2010: Living in a Digital WorldPages 9 - 10 9 Chapter 1
  • 10. Advantages and Disadvantagesof Using Computers• Green computing involves reducing the electricity consumed and environmental waste generated when using a computer• Strategies include: – Recycling – Regulating manufacturing processes – Extending the life of computers – Immediately donating or properly disposing of replaced computers Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Green Computing below Chapter 1Page 10 Discovering Computers 2010: Living in a Digital World 10 Chapter 1
  • 11. Networks and the Internet • A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission mediaPages 10 - 11 Discovering Computers 2010: Living in a Digital World 11 Chapter 1Figure 1-6
  • 12. Networks and the Internet• The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click The Internet below Chapter 1Page 11 Discovering Computers 2010: Living in a Digital World 12Figure 1-7 Chapter 1
  • 13. Networks and the Internet• People use the Internet for a variety of reasons: Communicate Research and Shop Bank and Invest Online Trading Access Information Entertainment Download Music Share Videos Web ApplicationPages 12 - 13 Discovering Computers 2010: Living in a Digital World 13Figure 1-8 Chapter 1
  • 14. Networks and the Internet• A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click MySpace below Chapter 1Page 14 Discovering Computers 2010: Living in a Digital World 14Figure 1-9 Chapter 1
  • 15. Computer Software• Software, also called a program, tells the computer what tasks to perform and how to perform them System Software • Operating system • Utility program Application Software Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Windows below Chapter 1Pages 15 - 16 Discovering Computers 2010: Living in a Digital World 15Figures 1-10 - 1-11 Chapter 1
  • 16. Computer Software• Installing is the process of setting up software to work with the computer, printer, and other hardwarePages 16 - 17 Discovering Computers 2010: Living in a Digital World 16Figure 1-12 Chapter 1
  • 17. Computer Software • A programmer develops software or writes the instructions that direct the computer to process data into informationPage 18 Discovering Computers 2010: Living in a Digital World 17Figure 1-13 Chapter 1
  • 18. Categories of Computers Personal computers Mobile computers and mobile devices Game consoles Servers Mainframes Supercomputers Embedded computersPage 19 Discovering Computers 2010: Living in a Digital World 18 Chapter 1
  • 19. Personal Computers• A personal computer can perform all of its input, processing, output, and storage activities by itself• Two popular architectures are the PC and the Apple – Desktop computerPage 19 Discovering Computers 2010: Living in a Digital World 19Figures 1-15 - 1-16 Chapter 1
  • 20. Mobile Computers and Mobile Devices Mobile Mobile Computer Device Personal computer you Computing device can carry from place to small enough to hold in place your hand Examples include Examples include smart phones, PDAs, notebook computers, handheld computers, laptop computers, and portable media Tablet PCs players, and digital camerasPages 20 - 23 Discovering Computers 2010: Living in a Digital World 20 Chapter 1
  • 21. Mobile Computers and Mobile Devices Notebook computer Tablet PC Smart phone PDA Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Camera Phone below Chapter 1Pages 20 - 22 Discovering Computers 2010: Living in a Digital World 21Figures 1-17 – 1-20 Chapter 1
  • 22. Mobile Computers and Mobile Devices Handheld computer Portable media player Digital camera Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Digital Cameras below Chapter 1Pages 22 - 23 Discovering Computers 2010: Living in a Digital World 22Figures 1-21 – 1-23 Chapter 1
  • 23. Game Consoles • A game console is a mobile computing device designed for single-player or multiplayer video gamesPage 24 Discovering Computers 2010: Living in a Digital World 23Figure 1-24 Chapter 1
  • 24. Servers • A server controls access to the hardware, software, and other resources on a network – Provides a centralized storage area for programs, data, and informationPage 25 Discovering Computers 2010: Living in a Digital World 24 Chapter 1Figure 1-25
  • 25. Mainframes • A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneouslyPage 25 Discovering Computers 2010: Living in a Digital World 25 Chapter 1Figure 1-26
  • 26. Supercomputers• A supercomputer is the fastest, most powerful computer – Fastest supercomputers are capable of processing more than one quadrillion instructions in a single secondPage 25 Discovering Computers 2010: Living in a Digital World 26Figure 1-27 Chapter 1
  • 27. Embedded Computers• An embedded computer is a special-purpose computer that functions as a component in a larger product Consumer Home Automation Process Controllers Computer Devices Automobiles Electronics Devices and Robotics and Office Machines• Mobile and digital • Thermostats • Antilock brakes • Remote monitoring • Keyboards telephones • Sprinkling systems • Engine control systems • Printers• Digital televisions • Security modules • Power monitors • Faxes• Cameras monitoring systems • Airbag controller • Machine • Copiers• Video recorders • Appliances • Cruise control controllers• DVD players and • Lights • Medical devices recorders• Answering machinesPage 26 Discovering Computers 2010: Living in a Digital World 27 Chapter 1
  • 28. Embedded ComputersPage 26 Discovering Computers 2010: Living in a Digital World 28Figure 1-28 Chapter 1
  • 29. Elements of an Information System Hardware Software Data People Procedures Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Women in Technology below Chapter 1Page 27 Discovering Computers 2010: Living in a Digital World 29 Chapter 1
  • 30. Elements of an Information SystemPage 27 Discovering Computers 2010: Living in a Digital World 30Figure 1-29 Chapter 1
  • 31. Examples of Computer Usage Home User Small Office/Home Mobile User • Personal financial management Office User • Connect to other computers on • Web access • Look up information a network or the Internet • Communications • Send and receive e-mail • Transfer information • Entertainment messages • Play video games • Make telephone calls • Listen to music • Watch movies Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Minorities in Technology below Chapter 1Pages 28 – 31 Discovering Computers 2010: Living in a Digital World 31Figures 1-30 – 1-32 Chapter 1
  • 32. Examples of Computer Usage Power User Enterprise User • Work with multimedia • Communicate among • Use industry-specific employees software • Process high volumes of transactions • Blog Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Enterprise Computing below Chapter 1Pages 31 – 32 Discovering Computers 2010: Living in a Digital World 32Figures 1-33 – 1-34 Chapter 1
  • 33. Computer Applications in Society Education Finance Government Health CarePages 34 - 36 Discovering Computers 2010: Living in a Digital World 33Figures 1-36 – 1-39 Chapter 1
  • 34. Computer Applications in Society Science Publishing Travel Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click OnStar Manufacturing below Chapter 1Pages 36 - 38 Discovering Computers 2010: Living in a Digital World 34Figures 1-40 – 1-43 Chapter 1
  • 35. Video: Computer History in a Barn CLICK TO START Discovering Computers 2010: Living in a Digital World 35 Chapter 1
  • 36. Summary Basic computer Components of a concepts computer Many different categories of Networks, the Internet, computers, computer and computer software users, and computer applications in societyPage 39 Discovering Computers 2010: Living in a Digital World 36 Chapter 1
  • 37. Discovering Computers 2010 Living in a Digital World Chapter 1 Complete 37

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