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Chapter 1Introduction to Using Computers
CHAPTER 1 OBJECTIVESCHAPTER 1 OBJECTIVES
Explain why it is important to be Explain why it is important to be computer literatecomputer literate
Define the term computerDefine the term computer Identify the components of a Identify the components of a
computercomputer Explain why a computer is a Explain why a computer is a
powerful toolpowerful tool Differentiate among the various Differentiate among the various
categories of softwarecategories of software
CHAPTER 1 OBJECTIVES (cont.)
CHAPTER 1 OBJECTIVES (cont.)
Explain the purpose of a networkExplain the purpose of a network Discuss the uses of the Internet Discuss the uses of the Internet
and the World Wide Weband the World Wide Web Describe the categories of Describe the categories of
computers and their usescomputers and their uses
COMPUTER LITERACYCOMPUTER LITERACY
Computer literacyComputer literacy• Knowing how to use a Knowing how to use a
computercomputer
Click to see Figure 1-1Click to see Figure 1-1
COMPUTER LITERACYCOMPUTER LITERACY
Computer literacyComputer literacy• Knowing how to use a Knowing how to use a
computercomputer
Computers Are Everywhere VideoComputers Are Everywhere Video
WHAT IS A COMPUTER AND WHAT DOES IT DO?
WHAT IS A COMPUTER AND WHAT DOES IT DO? An electronic machine, An electronic machine,
operating under the control of operating under the control of instructions stored in its own instructions stored in its own memory, that can accept data memory, that can accept data (input), manipulate data (input), manipulate data according to specified rules according to specified rules (process), produce results (process), produce results (output), and store the results (output), and store the results for future use.for future use.
Click to see Figure 1-2Click to see Figure 1-2
THE COMPONENTS OF A COMPUTERTHE COMPONENTS OF A COMPUTER Input DevicesInput Devices
Click to see Figure 1-3Click to see Figure 1-3
Input DevicesInput Devices Output DevicesOutput Devices
THE COMPONENTS OF A COMPUTERTHE COMPONENTS OF A COMPUTER
Input DevicesInput Devices Output Devices Output Devices System UnitSystem Unit
THE COMPONENTS OF A COMPUTERTHE COMPONENTS OF A COMPUTER
Click to see Figure 1-4Click to see Figure 1-4
Input DevicesInput Devices Output DevicesOutput Devices System UnitSystem Unit Storage DevicesStorage Devices
THE COMPONENTS OF A COMPUTERTHE COMPONENTS OF A COMPUTER
Click to see Figure 1-7Click to see Figure 1-7
Click to see Figure 1-6Click to see Figure 1-6
Click to see Figure 1-5Click to see Figure 1-5
Input DevicesInput Devices Output Devices Output Devices System UnitSystem Unit Storage DevicesStorage Devices Communications DevicesCommunications Devices
THE COMPONENTS OF A COMPUTERTHE COMPONENTS OF A COMPUTER
WHY IS A COMPUTER SO POWERFUL?WHY IS A COMPUTER SO POWERFUL? SpeedSpeed
WHY IS A COMPUTER SO POWERFUL?WHY IS A COMPUTER SO POWERFUL? SpeedSpeed ReliabilityReliability
WHY IS A COMPUTER SO POWERFUL?WHY IS A COMPUTER SO POWERFUL? SpeedSpeed ReliabilityReliability AccuracyAccuracy
WHY IS A COMPUTER SO POWERFUL?WHY IS A COMPUTER SO POWERFUL? SpeedSpeed ReliabilityReliability AccuracyAccuracy StorageStorage
WHY IS A COMPUTER SO POWERFUL?WHY IS A COMPUTER SO POWERFUL? SpeedSpeed ReliabilityReliability AccuracyAccuracy StorageStorage CommunicationsCommunications
Click to see Figure 1-8Click to see Figure 1-8
WHY IS A COMPUTER SO POWERFUL?WHY IS A COMPUTER SO POWERFUL? SpeedSpeed ReliabilityReliability AccuracyAccuracy StorageStorage CommunicationsCommunications Use of Computers AnimationUse of Computers Animation
Click to view animationClick to view animation
COMPUTER SOFTWARECOMPUTER SOFTWARE Computer programsComputer programs
• A series of instructions that A series of instructions that tells the hardware of a tells the hardware of a computer how to perform computer how to perform taskstasks
COMPUTER SOFTWARECOMPUTER SOFTWARE Computer programsComputer programs
• A series of instructions that A series of instructions that tells the hardware of a tells the hardware of a computer how to perform computer how to perform taskstasks
• Installing programsInstalling programs
Click to see Figure 1-9Click to see Figure 1-9
COMPUTER SOFTWARECOMPUTER SOFTWARE Computer programsComputer programs
• A series of instructions that A series of instructions that tells the hardware of a tells the hardware of a computer how to perform taskscomputer how to perform tasks
• Installing programsInstalling programs• Running programsRunning programs
Click to see Figure 1-10Click to see Figure 1-10
COMPUTER SOFTWARECOMPUTER SOFTWARE System SoftwareSystem Software
• Operating systemOperating system
COMPUTER SOFTWARECOMPUTER SOFTWARE System SoftwareSystem Software
• Operating systemOperating system• Utility programsUtility programs• User interfaceUser interface
– Graphical user interface (GUI)Graphical user interface (GUI)– Microsoft WindowsMicrosoft Windows
Click to see Figure 1-11Click to see Figure 1-11
COMPUTER SOFTWARECOMPUTER SOFTWARE Application SoftwareApplication Software
• Packaged softwarePackaged software
Click to see Figure 1-12Click to see Figure 1-12
COMPUTER SOFTWARECOMPUTER SOFTWARE Application SoftwareApplication Software
• Packaged softwarePackaged software• Custom softwareCustom software
COMPUTER SOFTWARECOMPUTER SOFTWARE Application SoftwareApplication Software
• Packaged softwarePackaged software• Custom softwareCustom software• SharewareShareware
COMPUTER SOFTWARECOMPUTER SOFTWARE Application SoftwareApplication Software
• Packaged softwarePackaged software• Custom softwareCustom software• SharewareShareware• Freeware and public-domain Freeware and public-domain
softwaresoftware
COMPUTER SOFTWARECOMPUTER SOFTWARE Software DevelopmentSoftware Development
• Computer programmersComputer programmers
COMPUTER SOFTWARECOMPUTER SOFTWARE Software DevelopmentSoftware Development
• Computer programmersComputer programmers• Systems analystSystems analyst
COMPUTER SOFTWARECOMPUTER SOFTWARE Software DevelopmentSoftware Development
• Computer programmersComputer programmers• Systems analystSystems analyst• Programming languageProgramming language
Click to see Figure 1-13Click to see Figure 1-13
NETWORKS AND THE INTERNETNETWORKS AND THE INTERNET NetworkNetwork
• Sharing resourcesSharing resources
NETWORKS AND THE INTERNETNETWORKS AND THE INTERNET NetworkNetwork
• Sharing resourcesSharing resources• Local area network - LANLocal area network - LAN
Click to see Figure 1-14Click to see Figure 1-14
NETWORKS AND THE INTERNETNETWORKS AND THE INTERNET NetworkNetwork
• Sharing resourcesSharing resources• Local area network - LANLocal area network - LAN• Wide area networkWide area network
Click to see Figure 1-15Click to see Figure 1-15
NETWORKS AND THE INTERNETNETWORKS AND THE INTERNET InternetInternet
• E-mailE-mail• InformationInformation• ShoppingShopping• Meeting peopleMeeting people• EntertainmentEntertainment
Click to see Figure 1-16Click to see Figure 1-16
NETWORKS AND THE INTERNETNETWORKS AND THE INTERNET InternetInternet
• E-mailE-mail• InformationInformation• ShoppingShopping• Meeting peopleMeeting people• EntertainmentEntertainment• Web pageWeb page• Web siteWeb site• Web browserWeb browser
Click to see Figure 1-17Click to see Figure 1-17
Personal computersPersonal computers MinicomputersMinicomputers Mainframe computersMainframe computers SupercomputersSupercomputers
Click to see Figure 1-18Click to see Figure 1-18
CATEGORIES OF COMPUTERSCATEGORIES OF COMPUTERS
Can perform all of its input, Can perform all of its input, processing, output, and processing, output, and storage activities by itselfstorage activities by itself
Click to see Figure 1-20Click to see Figure 1-20
Click to see Figure 1-19Click to see Figure 1-19
PERSONAL COMPUTERSPERSONAL COMPUTERS
Desktop ComputersDesktop Computers
Click to see Figure 1-21Click to see Figure 1-21
PERSONAL COMPUTERSPERSONAL COMPUTERS
Desktop ComputersDesktop Computers• Tower modelTower model• All-in-one computerAll-in-one computer
Click to see Figure 1-22Click to see Figure 1-22
PERSONAL COMPUTERSPERSONAL COMPUTERS
Desktop ComputersDesktop Computers• Tower modelTower model• All-in-one computer All-in-one computer • WorkstationWorkstation• Stand-aloneStand-alone• ServerServer
Click to see Figure 1-23Click to see Figure 1-23
PERSONAL COMPUTERSPERSONAL COMPUTERS
Desktop ComputersDesktop Computers• Network computers and Web Network computers and Web
appliancesappliances
Click to see Figure 1-24Click to see Figure 1-24
PERSONAL COMPUTERSPERSONAL COMPUTERS
Portable ComputersPortable Computers• Laptop computersLaptop computers
Click to see Figure 1-25Click to see Figure 1-25
PERSONAL COMPUTERSPERSONAL COMPUTERS
Portable ComputersPortable Computers• Laptop computersLaptop computers• Handheld computersHandheld computers
Click to see Figure 1-26Click to see Figure 1-26
PERSONAL COMPUTERSPERSONAL COMPUTERS
Portable ComputersPortable Computers• Laptop computersLaptop computers• Handheld computersHandheld computers
– Pen computersPen computers
Click to see Figure 1-27Click to see Figure 1-27
PERSONAL COMPUTERSPERSONAL COMPUTERS
Portable ComputersPortable Computers• Laptop computersLaptop computers• Handheld computersHandheld computers
– Pen computersPen computers– Office on your arm videoOffice on your arm video
Click to view videoClick to view video
PERSONAL COMPUTERSPERSONAL COMPUTERS
Support up to 4,000 usersSupport up to 4,000 users Often connected via a Often connected via a
terminalterminal
Click to see Figure 1-28Click to see Figure 1-28
MINICOMPUTERSMINICOMPUTERS
Large, expensive, very Large, expensive, very powerful computer that can powerful computer that can handle hundreds or handle hundreds or thousands of connected thousands of connected usersusers
Click to see Figure 1-29Click to see Figure 1-29
MAINFRAME COMPUTERSMAINFRAME COMPUTERS
Fastest, most powerful Fastest, most powerful computercomputer
Able to process more than Able to process more than 64 billion instructions per 64 billion instructions per secondsecond
Click to see Figure 1-30Click to see Figure 1-30
SUPERCOMPUTERSSUPERCOMPUTERS
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Variety of users and usesVariety of users and uses
Click to see Figure 1-31Click to see Figure 1-31
Home UserHome User• Home softwareHome software
Click to see Figure 1-32Click to see Figure 1-32
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Home UserHome User• Home softwareHome software• Software for childrenSoftware for children
Click to see Figure 1-33Click to see Figure 1-33
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Home UserHome User• Home softwareHome software• Software for childrenSoftware for children• Home use of the webHome use of the web
Click to see Figure 1-34Click to see Figure 1-34
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Home UserHome User• Home softwareHome software• Software for childrenSoftware for children• Home use of the webHome use of the web• Computer family videoComputer family video
Click to view videoClick to view video
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Small Business UserSmall Business User• Desktop usersDesktop users
Click to see Figure 1-35Click to see Figure 1-35
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Small Business UserSmall Business User• Desktop usersDesktop users• Productivity softwareProductivity software
Click to see Figure 1-36Click to see Figure 1-36
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Small Business UserSmall Business User• Desktop usersDesktop users• Productivity softwareProductivity software• Specialized softwareSpecialized software
Click to see Figure 1-37Click to see Figure 1-37
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Small Business UserSmall Business User• Desktop usersDesktop users• Productivity softwareProductivity software• Specialized softwareSpecialized software• Web usageWeb usage
Click to see Figure 1-38Click to see Figure 1-38
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Small Business UserSmall Business User• Desktop usersDesktop users• Productivity softwareProductivity software• Specialized softwareSpecialized software• Web usageWeb usage• Small business web sitesSmall business web sites
Click to see Figure 1-39Click to see Figure 1-39
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Mobile UserMobile User• Many types of mobile usersMany types of mobile users
Click to see Figure 1-40Click to see Figure 1-40
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Mobile UserMobile User• Many types of mobile usersMany types of mobile users• PresentationsPresentations
Click to see Figure 1-41Click to see Figure 1-41
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Mobile UserMobile User• Many types of mobile usersMany types of mobile users• PresentationsPresentations• Docking stationDocking station
Click to see Figure 1-42Click to see Figure 1-42
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Large Business UserLarge Business User• Order entryOrder entry
Click to see Figure 1-43Click to see Figure 1-43
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Large Business UserLarge Business User• Order entryOrder entry• PDAs for organizationPDAs for organization
Click to see Figure 1-44Click to see Figure 1-44
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Large Business UserLarge Business User• Order entryOrder entry• PDAs for organizationPDAs for organization• Large business web siteLarge business web site
Click to see Figure 1-45Click to see Figure 1-45
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Large Business UserLarge Business User• Order entryOrder entry• PDAs for organizationPDAs for organization• Large business web siteLarge business web site• KioskKiosk
Click to see Figure 1-46Click to see Figure 1-46
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Power UserPower User• Engineers, architects, desktop Engineers, architects, desktop
publishers, graphic artistspublishers, graphic artists
Click to see Figure 1-47Click to see Figure 1-47
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Power UserPower User• Engineers, architects, desktop Engineers, architects, desktop
publishers, graphic artistspublishers, graphic artists• Specialized softwareSpecialized software
Click to see Figure 1-48Click to see Figure 1-48
EXAMPLES OF COMPUTER USAGEEXAMPLES OF COMPUTER USAGE
Web page authoringWeb page authoring
Click to see Figure 1-49Click to see Figure 1-49
COMPUTER USERS AS INFORMATION PROVIDERS
COMPUTER USERS AS INFORMATION PROVIDERS
Web page authoringWeb page authoring Photo communitiesPhoto communities
Click to see Figure 1-50Click to see Figure 1-50
COMPUTER USERS AS INFORMATION PROVIDERS
COMPUTER USERS AS INFORMATION PROVIDERS
Web page authoringWeb page authoring Photo communitiesPhoto communities Electronic storefrontsElectronic storefronts
Click to see Figure 1-51Click to see Figure 1-51
COMPUTER USERS AS INFORMATION PROVIDERS
COMPUTER USERS AS INFORMATION PROVIDERS
Web page authoringWeb page authoring Photo communitiesPhoto communities Electronic storefrontsElectronic storefronts ChatChat
Click to see Figure 1-52Click to see Figure 1-52
COMPUTER USERS AS INFORMATION PROVIDERS
COMPUTER USERS AS INFORMATION PROVIDERS
SUMMARY OF INTRODUCTION TO USING COMPUTERS
SUMMARY OF INTRODUCTION TO USING COMPUTERS
What a computer doesWhat a computer does The components of a computerThe components of a computer Why is a computer so powerful?Why is a computer so powerful? Computer softwareComputer software Networks and the InternetNetworks and the Internet Categories of computersCategories of computers
TECHNOLOGY TRAILBLAZERTECHNOLOGY TRAILBLAZER Bill GatesBill Gates
• Co-founder of MicrosoftCo-founder of Microsoft• Wealthiest person in AmericaWealthiest person in America• Consistently anticipates Consistently anticipates
technological developments technological developments and customer needsand customer needs
Click to see pictureClick to see picture
COMPANY ON THE CUTTING EDGECOMPANY ON THE CUTTING EDGE MicrosoftMicrosoft
• Founded in 1975 by Bill Gates Founded in 1975 by Bill Gates and Paul Allenand Paul Allen
• MS-DOSMS-DOS• WindowsWindows• Most capitalized company in Most capitalized company in
the worldthe world
Chapter 1 CompleteChapter 1 Complete
