Discovering Computers: Chapter 01
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Presentation to accompany Discovering Computers; Your Interactive Guide to the Digital World textbook. Published by Course Technologies.

Presentation to accompany Discovering Computers; Your Interactive Guide to the Digital World textbook. Published by Course Technologies.

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Discovering Computers: Chapter 01 Presentation Transcript

  • 1. Discovering Computers 2012 Your Interactive Guide to the 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 2 Discovering Computers 2012: Chapter 1for Detailed Objectives
  • 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 3 Discovering Computers 2012: Chapter 1for Detailed Objectives
  • 4. A World of Computers• Computers are everywherePages 4 - 5 4 Discovering Computers 2012: Chapter 1Figure 1-1
  • 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 2012: Chapter 1 5
  • 6. What Is a Computer?Page 6 6 Discovering Computers 2012: Chapter 1Figure 1-2
  • 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 • Records (writes) and/or retrieves (reads) items to and from storage Storage Device media 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 2012: Chapter 1 7
  • 8. The Components of a ComputerPage 7 8 Discovering Computers 2012: Chapter 1Figure 1-3
  • 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 EnvironmentPages 9 - 10 Discovering Computers 2012: Chapter 1 9
  • 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 computersPage 10 Discovering Computers 2012: Chapter 1 10
  • 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 2012: Chapter 1 11Figure 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 individualsPage 11 12 Discovering Computers 2012: Chapter 1Figure 1-7
  • 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 Videos Share Information Web ApplicationPages 12 - 13 13 Discovering Computers 2012: Chapter 1Figure 1-8
  • 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 usersPage 14 14 Discovering Computers 2012: Chapter 1Figure 1-9
  • 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 SoftwarePages 15 - 16 15 Discovering Computers 2012: Chapter 1Figures 1-10 - 1-11
  • 16. Computer Software• Installing is the process of setting up software to work with the computer, printer, and other hardwarePages 16 - 17 16 Discovering Computers 2012: Chapter 1Figure 1-12
  • 17. Computer Software • A programmer develops software or writes the instructions that direct the computer to process data into informationPage 18 Discovering Computers 2012: Chapter 1 17Figure 1-13
  • 18. Categories of Computers Personal computers Mobile computers and mobile devices Game consoles Servers Mainframes Supercomputers Embedded computersPage 19 Discovering Computers 2012: Chapter 1 18
  • 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 computerPages 19 - 20 19 Discovering Computers 2012: Chapter 1Figures 1-15 - 1-16
  • 20. Mobile Computers and Mobile Devices Mobile Mobile Computer Device Personal computer you Computing device small can carry from place to enough to hold in your place hand Examples include smart Examples include phones and PDAs, e- notebook computers, book readers, handheld laptop computers, computers, portable netbooks, ultra-thins, media players, and and Tablet PCs digital camerasPages 20 - 23 Discovering Computers 2012: Chapter 1 20
  • 21. Mobile Computers and Mobile Devices Notebook computer Tablet PC Smart phones and PDAs E-book readerPages 20 - 22 21 Discovering Computers 2012: Chapter 1Figures 1-17 – 1-20
  • 22. Mobile Computers and Mobile Devices Handheld computer Portable media player Digital cameraPages 22 - 23 22 Discovering Computers 2012: Chapter 1Figures 1-21 – 1-23
  • 23. Game Consoles • A game console is a mobile computing device designed for single-player or multiplayer video gamesPage 24 Discovering Computers 2012: Chapter 1 23Figure 1-24
  • 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 2012: Chapter 1 24Figure 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 2012: Chapter 1 25Figure 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 26 Discovering Computers 2012: Chapter 1Figure 1-27
  • 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 2012: Chapter 1 27
  • 28. Embedded ComputersPage 26 28 Discovering Computers 2012: Chapter 1Figure 1-28
  • 29. Elements of an Information System Hardware Software Data People ProceduresPage 27 Discovering Computers 2012: Chapter 1 29
  • 30. Elements of an Information SystemPage 27 30 Discovering Computers 2012: Chapter 1Figure 1-29
  • 31. Examples of Computer Usage Home User Small Office/Home Mobile User • Personal financial Office User • Connect to other computers management • Look up information on a network or the Internet • Web access • Send and receive e-mail • Transfer information • Communications messages • Play video games • Entertainment • Make telephone calls • Listen to music • Watch moviesPages 28 – 31 31 Discovering Computers 2012: Chapter 1Figures 1-30 – 1-32
  • 32. Examples of Computer Usage Power User Enterprise User • Work with multimedia • Communicate among • Use industry-specific employees software • Process high volumes of transactions • BlogPages 31 – 32 32 Discovering Computers 2012: Chapter 1Figures 1-33 – 1-34
  • 33. Computer Applications in Society Education Finance Government Health CarePages 34 - 36 33 Discovering Computers 2012: Chapter 1Figures 1-36 – 1-39
  • 34. Computer Applications in Society Science Publishing Travel ManufacturingPages 36 - 38 34 Discovering Computers 2012: Chapter 1Figures 1-40 – 1-43
  • 35. 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 2012: Chapter 1 35
  • 36. Discovering Computers 2012 Your Interactive Guide to the Digital World Chapter 1 Complete