1. Discovering Computers 2011 Living in a Digital World

2. Objectives OverviewDefine the term, Explain why computercomputer, and describeDescribe the five literacy is vital to the relationship components of asuccess in todays world between data and computerinformationDiscuss the advantagesDefine the term,and disadvantages that Discuss the uses of thenetwork, and identifyusers experience whenInternet and World benefits of sharing working withWide Web resources on a networkcomputersSee Page 3 Discovering Computers 2011: Living in a Digital World 2for Detailed ObjectivesChapter 1 3. Objectives OverviewDistinguish between systemDifferentiate among types,Describe the role of each software and application sizes, and functions of element in an informationsoftwarecomputers in each category system Explain how home users, Discuss how society uses small office/home office computers in education,users, mobile users, powerfinance, government, healthusers, and enterprise users care, science, publishing,each interact withtravel, and manufacturingcomputersSee Page 3Discovering Computers 2011: Living in a Digital World 3for Detailed Objectives Chapter 1 4. A World of Computers Computers are everywherePages 4 - 5 Discovering Computers 2011: Living in a Digital World 4Figure 1-1Chapter 1 5. What Is a Computer? A computer is an electronic device, operatingunder the control of instructions stored in its ownmemory Collects Produces dataProcessing information (input)(output) Information Processing CyclePage 6Discovering Computers 2011: Living in a Digital World 5Chapter 1 6. What Is a Computer?Page 6 Discovering Computers 2011: 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 hardwareInput 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 dataStorage Device Holds data, instructions, and information for future useCommunications Enables a computer to send and receive data, instructions, and Deviceinformation to and from one or more computers or mobile devicesPages 6 - 8Discovering Computers 2011: Living in a Digital World 7 Chapter 1 8. The Components of a ComputerPage 7 Discovering Computers 2011: Living in a Digital World 8Figure 1-3 Chapter 1 9. Advantages and Disadvantagesof Using ComputersAdvantages ofDisadvantages of Using Computers Using Computers SpeedHealth Risks ReliabilityViolation of PrivacyConsistency Public SafetyStorage Impact on Labor Force CommunicationsImpact on EnvironmentDiscovering Computers 2011: Living in a Digital WorldPages 9 - 10 9Chapter 1 10. Advantages and Disadvantagesof Using Computers Green computing involves reducing the electricityconsumed and environmental waste generated whenusing a computer Strategies include: Recycling Regulating manufacturing processes Extending the life of computers Immediately donating or properly disposing of replaced computersClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Green Computingbelow Chapter 1Page 10Discovering Computers 2011: 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 - 11Discovering Computers 2011: 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 2011: Living in a Digital World 12Figure 1-7Chapter 1 13. Networks and the Internet People use the Internet for a variety of reasons: CommunicateResearch and ShopBank and InvestOnline TradingAccess InformationEntertainment Download Videos Share InformationWeb ApplicationPages 12 - 13Discovering Computers 2011: Living in a Digital World 13Figure 1-8 Chapter 1 14. Networks and the Internet A social networking Web site encouragesmembers to share their interests, ideas, stories,photos, music, and videos with other registeredusers Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Facebook below Chapter 1Page 14 Discovering Computers 2011: Living in a Digital World 14Figure 1-9Chapter 1 15. Computer Software Software, also called a program, tells thecomputer what tasks to perform and how toperform them System Software Operating system Utility program Application SoftwareClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Windowsbelow Chapter 1Pages 15 - 16Discovering Computers 2011: Living in a Digital World 15Figures 1-10 - 1-11Chapter 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 2011: Living in a Digital World 16Figure 1-12 Chapter 1 17. Computer Software A programmer developssoftware or writes theinstructions that directthe computer toprocess data intoinformationPage 18 Discovering Computers 2011: Living in a Digital World17Figure 1-13 Chapter 1 18. Categories of ComputersPersonal computersMobile computers and mobile devices Game consolesServers MainframesSupercomputersEmbedded computersPage 19 Discovering Computers 2011: Living in a Digital World 18Chapter 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 theApple Desktop computerPage 19 Discovering Computers 2011: Living in a Digital World 19Figures 1-15 - 1-16 Chapter 1 20. Mobile Computers and Mobile DevicesMobile Mobile ComputerDevicePersonal computer you Computing devicecan carry from place to small enough to hold inplace your handExamples includeExamples includesmart phones, PDAs,notebook computers,handheld computers,laptop computers,portable medianetbooks, ultra-thins,players, and digitaland Tablet PCscamerasPages 20 - 23 Discovering Computers 2011: Living in a Digital World20Chapter 1 21. Mobile Computers and Mobile DevicesNotebook computer Tablet PC Smart phonePDAClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Camera Phonebelow Chapter 1Pages 20 - 22Discovering Computers 2011: Living in a Digital World 21Figures 1-17 1-20Chapter 1 22. Mobile Computers and Mobile DevicesHandheld computerPortable 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 - 23Discovering Computers 2011: Living in a Digital World 22Figures 1-21 1-23Chapter 1 23. Game Consoles A game console is amobile computingdevice designed forsingle-player ormultiplayer videogamesPage 24Discovering Computers 2011: Living in a Digital World 23Figure 1-24Chapter 1 24. Servers A server controls access to the hardware, software, and other resources on a network Provides a centralizedstorage area forprograms, data, andinformationPage 25 Discovering Computers 2011: Living in a Digital World24Chapter 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 2011: Living in a Digital World25Chapter 1Figure 1-26 26. Supercomputers A supercomputer is the fastest, most powerfulcomputer Fastest supercomputers are capable of processing more than one quadrillion instructions in a single secondPage 25Discovering Computers 2011: Living in a Digital World 26Figure 1-27Chapter 1 27. Embedded Computers An embedded computer is a special-purposecomputer that functions as a component in alarger productConsumer Home AutomationProcess ControllersComputer DevicesAutomobilesElectronicsDevices and Robotics and Office Machines Mobile and digital Thermostats Antilock brakes Remote monitoring Keyboardstelephones 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 devicesrecorders AnsweringmachinesPage 26 Discovering Computers 2011: Living in a Digital World 27Chapter 1 28. Embedded ComputersPage 26 Discovering Computers 2011: Living in a Digital World 28Figure 1-28 Chapter 1 29. Elements of an Information System Hardware Software Data PeopleProceduresClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Women inTechnology below Chapter 1Page 27Discovering Computers 2011: Living in a Digital World29 Chapter 1 30. Elements of an Information SystemPage 27 Discovering Computers 2011: Living in a Digital World 30Figure 1-29 Chapter 1 31. Examples of Computer Usage Home UserSmall Office/HomeMobile User Personal financial managementOffice User Connect to other computers on Web access Look up informationa network or the Internet Communications Send and receive e-mail Transfer information Entertainmentmessages Play video games Make telephone calls Listen to music Watch moviesClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Minorities inTechnology below Chapter 1Pages 28 31Discovering Computers 2011: Living in a Digital World 31Figures 1-30 1-32Chapter 1 32. Examples of Computer UsagePower UserEnterprise User Work with multimedia Communicate among Use industry-specific employeessoftware Process high volumesof transactions BlogClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click EnterpriseComputing below Chapter 1Pages 31 32Discovering Computers 2011: Living in a Digital World 32Figures 1-33 1-34Chapter 1 33. Computer Applications in SocietyEducationFinanceGovernmentHealth CarePages 34 - 36 Discovering Computers 2011: Living in a Digital World 33Figures 1-36 1-39 Chapter 1 34. Computer Applications in Society Science Publishing TravelClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click OnStar Manufacturingbelow Chapter 1Pages 36 - 38Discovering Computers 2011: Living in a Digital World 34Figures 1-40 1-43Chapter 1 35. Video: Computer History in a Barn CLICK TO STARTDiscovering Computers 2011: Living in a Digital World 35Chapter 1 36. Summary Basic computerComponents of aconceptscomputer Many differentcategories ofNetworks, the Internet,computers, computerand computer software users, and computerapplications in societyPage 39 Discovering Computers 2011: Living in a Digital World 36Chapter 1 37. Discovering Computers 2011 Living in a Digital WorldChapter 1 Complete