Chapter 1 Introduction to Using Computers

CHAPTER 1 OBJECTIVES b Explain why it is important to be computer literate b Define the term computer b Identify the components of a computer b Explain why a computer is a powerful tool b Differentiate among the various categories of software

CHAPTER 1 OBJECTIVES (cont.) b Explain the purpose of a network b Discuss the uses of the Internet and the World Wide Web b Describe the categories of computers and their uses

COMPUTER LITERACY b Computer literacy Knowing how to use a computerKnowing how to use a computer Click to see Figure 1-1

COMPUTER LITERACY b Computer literacy Knowing how to use a computerKnowing how to use a computer Computers Are Everywhere Video

WHAT IS A COMPUTER AND WHAT DOES IT DO? An electronic machine, operating under the control of instructions stored in its own memory, that can accept data (input), manipulate data according to specified rules (process), produce results (output), and store the results for future use. An electronic machine, operating under the control of instructions stored in its own memory, that can accept data (input), manipulate data according to specified rules (process), produce results (output), and store the results for future use. Click to see Figure 1-2

THE COMPONENTS OF A COMPUTER b Input Devices Click to see Figure 1-3

b Input Devices b Output Devices THE COMPONENTS OF A COMPUTER

b Input Devices b Output Devices b System Unit THE COMPONENTS OF A COMPUTER Click to see Figure 1-4

b Input Devices b Output Devices b System Unit b Storage Devices THE COMPONENTS OF A COMPUTER Click to see Figure 1-7 Click to see Figure 1-6 Click to see Figure 1-5

b Input Devices b Output Devices b System Unit b Storage Devices b Communications Devices THE COMPONENTS OF A COMPUTER

WHY IS A COMPUTER SO POWERFUL? b Speed

WHY IS A COMPUTER SO POWERFUL? b Speed b Reliability

WHY IS A COMPUTER SO POWERFUL? b Speed b Reliability b Accuracy

WHY IS A COMPUTER SO POWERFUL? b Speed b Reliability b Accuracy b Storage

WHY IS A COMPUTER SO POWERFUL? b Speed b Reliability b Accuracy b Storage b Communications Click to see Figure 1-8

WHY IS A COMPUTER SO POWERFUL? b Speed b Reliability b Accuracy b Storage b Communications b Use of Computers Animation Click to view animation

COMPUTER SOFTWARE b Computer programs A series of instructions that tells the hardware of a computer how to perform tasksA series of instructions that tells the hardware of a computer how to perform tasks

COMPUTER SOFTWARE b Computer programs A series of instructions that tells the hardware of a computer how to perform tasksA series of instructions that tells the hardware of a computer how to perform tasks Installing programsInstalling programs Click to see Figure 1-9

COMPUTER SOFTWARE b Computer programs A series of instructions that tells the hardware of a computer how to perform tasksA series of instructions that tells the hardware of a computer how to perform tasks Installing programsInstalling programs Running programsRunning programs Click to see Figure 1-10

COMPUTER SOFTWARE b System Software Operating systemOperating system

COMPUTER SOFTWARE b System Software Operating systemOperating system Utility programsUtility programs User interfaceUser interface –Graphical user interface (GUI) –Microsoft Windows Click to see Figure 1-11

COMPUTER SOFTWARE b Application Software Packaged softwarePackaged software Click to see Figure 1-12

COMPUTER SOFTWARE b Application Software Packaged softwarePackaged software Custom softwareCustom software

COMPUTER SOFTWARE b Application Software Packaged softwarePackaged software Custom softwareCustom software SharewareShareware

COMPUTER SOFTWARE b Application Software Packaged softwarePackaged software Custom softwareCustom software SharewareShareware Freeware and public-domain softwareFreeware and public-domain software

COMPUTER SOFTWARE b Software Development Computer programmersComputer programmers

COMPUTER SOFTWARE b Software Development Computer programmersComputer programmers Systems analystSystems analyst

COMPUTER SOFTWARE b Software Development Computer programmersComputer programmers Systems analystSystems analyst Programming languageProgramming language Click to see Figure 1-13

NETWORKS AND THE INTERNET b Network Sharing resourcesSharing resources

NETWORKS AND THE INTERNET b Network Sharing resourcesSharing resources Local area network - LANLocal area network - LAN Click to see Figure 1-14

NETWORKS AND THE INTERNET b Network Sharing resourcesSharing resources Local area network - LANLocal area network - LAN Wide area networkWide area network Click to see Figure 1-15

NETWORKS AND THE INTERNET b Internet InformationInformation ShoppingShopping Meeting peopleMeeting people EntertainmentEntertainment Click to see Figure 1-16

NETWORKS AND THE INTERNET b Internet InformationInformation ShoppingShopping Meeting peopleMeeting people EntertainmentEntertainment Web pageWeb page Web siteWeb site Web browserWeb browser Click to see Figure 1-17

b Personal computers b Minicomputers b Mainframe computers b Supercomputers Click to see Figure 1-18 CATEGORIES OF COMPUTERS

b Can perform all of its input, processing, output, and storage activities by itself Click to see Figure 1-20 Click to see Figure 1-19 PERSONAL COMPUTERS

b Desktop Computers Click to see Figure 1-21 PERSONAL COMPUTERS

b Desktop Computers Tower modelTower model All-in-one computerAll-in-one computer Click to see Figure 1-22 PERSONAL COMPUTERS

b Desktop Computers Tower modelTower model All-in-one computerAll-in-one computer WorkstationWorkstation Stand-aloneStand-alone ServerServer Click to see Figure 1-23 PERSONAL COMPUTERS

b Desktop Computers Network computers and Web appliancesNetwork computers and Web appliances Click to see Figure 1-24 PERSONAL COMPUTERS

b Portable Computers Laptop computersLaptop computers Click to see Figure 1-25 PERSONAL COMPUTERS

b Portable Computers Laptop computersLaptop computers Handheld computersHandheld computers Click to see Figure 1-26 PERSONAL COMPUTERS

b Portable Computers Laptop computersLaptop computers Handheld computersHandheld computers –Pen computers Click to see Figure 1-27 PERSONAL COMPUTERS

b Portable Computers Laptop computersLaptop computers Handheld computersHandheld computers –Pen computers –Office on your arm video Click to view video PERSONAL COMPUTERS

b Support up to 4,000 users b Often connected via a terminal Click to see Figure 1-28 MINICOMPUTERS

b Large, expensive, very powerful computer that can handle hundreds or thousands of connected users Click to see Figure 1-29 MAINFRAME COMPUTERS

b Fastest, most powerful computer b Able to process more than 64 billion instructions per second Click to see Figure 1-30 SUPERCOMPUTERS

EXAMPLES OF COMPUTER USAGE b Variety of users and uses Click to see Figure 1-31

b Home User Home softwareHome software Click to see Figure 1-32 EXAMPLES OF COMPUTER USAGE

b Home User Home softwareHome software Software for childrenSoftware for children Click to see Figure 1-33 EXAMPLES OF COMPUTER USAGE

b Home User Home softwareHome software Software for childrenSoftware for children Home use of the webHome use of the web Click to see Figure 1-34 EXAMPLES OF COMPUTER USAGE

b Home 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 video EXAMPLES OF COMPUTER USAGE

b Small Business User Desktop usersDesktop users Click to see Figure 1-35 EXAMPLES OF COMPUTER USAGE

b Small Business User Desktop usersDesktop users Productivity softwareProductivity software Click to see Figure 1-36 EXAMPLES OF COMPUTER USAGE

b Small Business User Desktop usersDesktop users Productivity softwareProductivity software Specialized softwareSpecialized software Click to see Figure 1-37 EXAMPLES OF COMPUTER USAGE

b Small Business User Desktop usersDesktop users Productivity softwareProductivity software Specialized softwareSpecialized software Web usageWeb usage Click to see Figure 1-38 EXAMPLES OF COMPUTER USAGE

b Small 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 1-39 EXAMPLES OF COMPUTER USAGE

b Mobile User Many types of mobile usersMany types of mobile users Click to see Figure 1-40 EXAMPLES OF COMPUTER USAGE

b Mobile User Many types of mobile usersMany types of mobile users PresentationsPresentations Click to see Figure 1-41 EXAMPLES OF COMPUTER USAGE

b Mobile User Many types of mobile usersMany types of mobile users PresentationsPresentations Docking stationDocking station Click to see Figure 1-42 EXAMPLES OF COMPUTER USAGE

b Large Business User Order entryOrder entry Click to see Figure 1-43 EXAMPLES OF COMPUTER USAGE

b Large Business User Order entryOrder entry PDAs for organizationPDAs for organization Click to see Figure 1-44 EXAMPLES OF COMPUTER USAGE

b Large Business User Order entryOrder entry PDAs for organizationPDAs for organization Large business web siteLarge business web site Click to see Figure 1-45 EXAMPLES OF COMPUTER USAGE

b Large Business User Order entryOrder entry PDAs for organizationPDAs for organization Large business web siteLarge business web site KioskKiosk Click to see Figure 1-46 EXAMPLES OF COMPUTER USAGE

b Power User Engineers, architects, desktop publishers, graphic artistsEngineers, architects, desktop publishers, graphic artists Click to see Figure 1-47 EXAMPLES OF COMPUTER USAGE

b Power User Engineers, architects, desktop publishers, graphic artistsEngineers, architects, desktop publishers, graphic artists Specialized softwareSpecialized software Click to see Figure 1-48 EXAMPLES OF COMPUTER USAGE

b Web page authoring Click to see Figure 1-49 COMPUTER USERS AS INFORMATION PROVIDERS

b Web page authoring b Photo communities Click to see Figure 1-50 COMPUTER USERS AS INFORMATION PROVIDERS

b Web page authoring b Photo communities b Electronic storefronts Click to see Figure 1-51 COMPUTER USERS AS INFORMATION PROVIDERS

b Web page authoring b Photo communities b Electronic storefronts b Chat Click to see Figure 1-52 COMPUTER USERS AS INFORMATION PROVIDERS

SUMMARY OF INTRODUCTION TO USING COMPUTERS b What a computer does b The components of a computer b Why is a computer so powerful? b Computer software b Networks and the Internet b Categories of computers

TECHNOLOGY TRAILBLAZER b Bill Gates Co-founder of MicrosoftCo-founder of Microsoft Wealthiest person in AmericaWealthiest person in America Consistently anticipates technological developments and customer needsConsistently anticipates technological developments and customer needs Click to see picture

COMPANY ON THE CUTTING EDGE b Microsoft Founded in 1975 by Bill Gates and Paul AllenFounded in 1975 by Bill Gates and Paul Allen MS-DOSMS-DOS WindowsWindows Most capitalized company in the worldMost capitalized company in the world

Chapter 1 Complete