Discovering Computers Fundamentals, 2011 Edition

Discovering ComputersFundamentals,2011 EditionLiving in a Digital World

Objectives OverviewExplain why computerliteracy is vital tosuccess in today's worldDescribe the fivecomponents of acomputerDiscuss the uses of theInternet and WorldWide WebSee Page 1for Detailed ObjectivesDiscuss the advantagesand disadvantages thatusers experience whenworking withcomputersDistinguish betweensystem software andapplication softwareDiscovering Computers and Microsoft Office 2007Chapter 12

Objectives OverviewDifferentiate among types,sizes, and functions ofcomputers in each categoryExplain how home users,small office/home officeusers, mobile users, powerusers, and enterprise userseach interact withcomputersDiscuss how society usescomputers in education,finance, government, healthcare, science, publishing,travel, and manufacturingSee Page 1for Detailed ObjectivesDiscovering Computers and Microsoft Office 2007Chapter 13

A World of Computers Computers are everywherePages 2 - 3Figure 1-1Discovering Computers and Microsoft Office 2007Chapter 14

What is Computer Literacy? Knowledge and understandingof computers and their usesComputers are everywherep. 2 - 3 Fig. 1-1Next

What Is a Computer? A computer is an electronic device, operatingunder the control of instructions stored in its rmation(output)Information Processing CyclePages 3 - 4Discovering Computers and Microsoft Office 2007Chapter 16

What Is a Computer?Page 4Figure 1-2Discovering Computers and Microsoft Office 2007Chapter 17

The Components of a Computer A computer contains many electric, electronic, andmechanical components known as hardwareInput DeviceOutput DeviceSystem UnitStorage DeviceCommunicationsDevicePages 4 - 7 Allows you to enter data and instructions into a computer Hardware component that conveys information to one or more people Case that contains the electronic components of the computer thatare used to process data Holds data, instructions, and information for future use Enables a computer to send and receive data, instructions, andinformation to and from one or more computers or mobile devicesDiscovering Computers and Microsoft Office 2007Chapter 18

The Components of a ComputerPage 5Figure 1-3Discovering Computers and Microsoft Office 2007Chapter 19

Advantages and Disadvantagesof Using ComputersPage 7Advantages ofUsing ComputersDisadvantages ofUsing ComputersSpeedViolation of PrivacyReliabilityPublic SafetyConsistencyImpact on Labor ForceStorageHealth RisksCommunicationsImpact on EnvironmentDiscovering Computers and Microsoft Office 2007Chapter 110

Advantages and Disadvantagesof Using Computers Green computing involves reducing the electricityconsumed and environmental waste generated whenusing a computer Strategies include:––––RecyclingRegulating manufacturing processesExtending the life of computersImmediately 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 7Discovering Computers and Microsoft Office 2007Chapter 111

Networks and the Internet A network is a collection of computers and devicesconnected together, often wirelessly, via communicationsdevices and transmission media The Internet is a worldwide collection of networks thatconnects millions of businesses, government agencies,educational institutions, and individualsClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click The Internetbelow Chapter 1Page 8Discovering Computers and Microsoft Office 2007Chapter 112

Networks and the InternetPage 8Figure 1-6Discovering Computers and Microsoft Office 2007Chapter 113

Networks and the Internet People use the Internet for a variety of reasons:CommunicateResearch andAccess InformationEntertainmentPages 8 - 9Figure 1-7Share InformationShopBank and InvestDownload VideosDiscovering Computers and Microsoft Office 2007Chapter 1Online TradingWeb Application14

Networks and the Internet A social networking Web site encouragesmembers to share their interests, ideas, stories,photos, music, and videos with other registeredusers– Also called an online social networkPage 10Discovering Computers and Microsoft Office 2007Chapter 115

Computer Software Software, also called a program, tells thecomputer what tasks to perform and how toperform themSystem Software Operating system Utility programApplication SoftwareClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Windowsbelow Chapter 1Pages 11 - 12Figures 1-8 - 1-9Discovering Computers and Microsoft Office 2007Chapter 116

Computer Software Installing is the process of setting up software towork with the computer, printer, and otherhardwarePages 12 - 13Figure 1-10Discovering Computers and Microsoft Office 2007Chapter 117

Computer Software A programmer develops software or writes theinstructions that direct the computer to processdata into informationPage 13Figure 1-11Discovering Computers and Microsoft Office 2007Chapter 118

Categories of ComputersPersonal computersMobile computers and mobile devicesGame consolesServersMainframesSupercomputersEmbedded computersPages 14 - 15Discovering Computers and Microsoft Office 2007Chapter 119

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 computerPages 15 - 16Figures 1-13 - 1-14Discovering Computers and Microsoft Office 2007Chapter 120

Mobile Computers and Mobile DevicesMobileComputerPages 16 - 18MobileDevicePersonal computer youcan carry from place toplaceComputing devicesmall enough to hold inyour handExamples includenotebook computers,laptop computers,netbooks, and TabletPCsExamples includesmart phones, PDAs,handheld computers,portable mediaplayers, and digitalcamerasDiscovering Computers and Microsoft Office 2007Chapter 121

Mobile Computers and Mobile DevicesNotebook computerTablet PCSmart phonePDAPages 16 - 17Figures 1-15 – 1-18Discovering Computers and Microsoft Office 2007Chapter 122

Mobile Computers and Mobile DevicesHandheld computerPortable media playerDigital cameraClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click Digital Camerasbelow Chapter 1Pages 17 - 18Figures 1-19 – 1-20Discovering Computers and Microsoft Office 2007Chapter 123

Game Consoles A game console is a mobile computing devicedesigned for single-player or multiplayer videogamesPage 18Figure 1-21Discovering Computers and Microsoft Office 2007Chapter 124

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 19Figure 1-22Discovering Computers and Microsoft Office 2007Chapter 125

Mainframes A mainframe is a large, expensive, powerfulcomputer that can handle hundreds or thousandsof connected users simultaneouslyPage 19Figure 1-23Discovering Computers and Microsoft Office 2007Chapter 126

Supercomputers A supercomputer is the fastest, most powerfulcomputer– Fastest supercomputers are capable of processingmore than one quadrillion instructions in a singlesecondPage 19Figure 1-24Discovering Computers and Microsoft Office 2007Chapter 127

Embedded Computers An embedded computer is a special-purposecomputer that functions as a component in alarger productConsumer ElectronicsHome Automation DevicesAutomobilesProcess Controllers and RoboticsComputer Devices and OfficeMachinesPage 19Discovering Computers and Microsoft Office 2007Chapter 128

Embedded ComputersPage 20Figure 1-25Discovering Computers and Microsoft Office 2007Chapter 129

Examples of Computer UsageHome User Personal financial management Web access Communications EntertainmentPages 20 – 23Figures 1-26 – 1-28Small Office/HomeOffice User Look up information Send and receive e-mailmessages Make telephone callsDiscovering Computers and Microsoft Office 2007Chapter 1Mobile User Connect to other computers ona network or the Internet Transfer information Play video games Listen to music Watch movies30

Examples of Computer UsagePower UserEnterprise User Work with multimedia Use industry-specificsoftware Communicate amongemployees Process high volumesof transactions BlogClick to view Web Link,click Chapter 1, Click WebLink from left navigation,then click EnterpriseComputing below Chapter 1Pages 23 – 24Figures 1-29 – 1-30Discovering Computers and Microsoft Office 2007Chapter 131

Computer Applications in SocietyEducationFinanceGovernmentHealth CarePages 24 -26Figures 1-31 – 1-34Discovering Computers and Microsoft Office 2007Chapter 132

Computer Applications in SocietySciencePublishingTravelManufacturingPages 26-27Figures 1-35 – 1-38Discovering Computers and Microsoft Office 2007Chapter 133

Video: Computer History in a BarnCLICK TO STARTDiscovering Computers and Microsoft Office 2007Chapter 134

SummaryPage 28Basic computerconceptsComponents of acomputerNetworks, the Internet,and computer softwareMany differentcategories ofcomputers, computerusers, and computerapplications in societyDiscovering Computers and Microsoft Office 2007Chapter 135

Discovering ComputersFundamentals,2011 EditionLiving in a Digital WorldChapter 1 Complete

Discovering Computers and Microsoft Office 2007 Chapter 1 See Page 1 2 for Detailed Objectives. Objectives Overview Differentiate among types, sizes, and functions of computers in each category Explain how home users, small office/home office users, mobile users, power