O leary2012 intro_ppt_ch01

Copyright © 2012 The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill

Chapter 01: Information Chapter 01: Information Technology, the Internet, Technology, the Internet,

and Youand You

Chapter 01: Information Chapter 01: Information Technology, the Internet, Technology, the Internet,

and Youand You

Copyright © 2012 The McGraw-Hill Companies, Inc. All rights reserved.

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Presentation TipsPresentation Tips

• Click the mouse to advance the slidesClick the mouse to advance the slides• Click the Click the hyperlinkhyperlink to directly advance to to directly advance to

the slide associated with the link; click the slide associated with the link; click ReturnReturn to go back to the calling slide to go back to the calling slide associated with the hyperlinkassociated with the hyperlink

• All key terms from the end of chapter All key terms from the end of chapter materials display in materials display in light orangelight orange the first the first time used in a slide; if used in notes, key time used in a slide; if used in notes, key terms are identified explicitlyterms are identified explicitly

• Discussion questions are set to Discussion questions are set to progressively appear on each mouse clickprogressively appear on each mouse click


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CompetenciesCompetencies (Page 1 of 2)(Page 1 of 2) • Explain the five parts of an Explain the five parts of an information information

systemsystem::peoplepeople, procedures, , procedures, softwaresoftware, , hardwarehardware, , and and datadata..

• Distinguish between system software and Distinguish between system software and application softwareapplication software..

• Discuss the three kinds of Discuss the three kinds of system softwaresystem software programs.programs.

• Distinguish between basic and Distinguish between basic and specialized specialized application application software.software.

• Identify the four types of computers and the Identify the four types of computers and the four type of four type of microcomputersmicrocomputers. .


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CompetenciesCompetencies (Page 2 of 2)(Page 2 of 2)

• Describe the different types of computer Describe the different types of computer hardware including the hardware including the system unitsystem unit, , input/output, secondary storage, and input/output, secondary storage, and communication devicescommunication devices..

• Define data and describe Define data and describe documentdocument, , worksheetworksheet, , databasedatabase, and , and presentation presentation filesfiles..

• Explain computer Explain computer connectivityconnectivity, the , the wireless wireless revolutionrevolution, the , the InternetInternet, , smartphonesmartphone, and , and cloud computingcloud computing..


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IntroductionIntroduction

• Computer competency Computer competency refers to acquiring refers to acquiring computer-related skillscomputer-related skills

• Microcomputers are common tools in all Microcomputers are common tools in all areas of lifeareas of life

• Web-based courses provide alternatives for Web-based courses provide alternatives for people who are homebound or work odd people who are homebound or work odd hourshours

• The Web provides new ways to The Web provides new ways to communicate, to find people with similar communicate, to find people with similar interests, and to purchase goodsinterests, and to purchase goods


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Five Parts of an Information Five Parts of an Information SystemSystem

1.1. PeoplePeople

2.2. ProceduresProcedures

3.3. SoftwareSoftware

4.4. HardwareHardware

5.5. DataData


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PeoplePeople

• Most important part of any systemMost important part of any system• Contact is …Contact is …

– DirectDirect– IndirectIndirect

• Computer usesComputer uses– Business & EntertainmentBusiness & Entertainment– Education & MedicineEducation & Medicine


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SoftwareSoftware

• Software is another name for programsSoftware is another name for programs• Two major kinds of softwareTwo major kinds of software

– System Software– Application Software


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System SoftwareSystem Software

• A collection of programs – not a single A collection of programs – not a single programprogram– Includes Operating System software, Utilities, and Includes Operating System software, Utilities, and

Device DriversDevice Drivers

• Enables the application software to interact Enables the application software to interact with the hardware, and helps the computer with the hardware, and helps the computer manage its resourcesmanage its resources

• Two best-known operating systems for Two best-known operating systems for microcomputers are Windows 7 and Mac OS microcomputers are Windows 7 and Mac OS XX

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Application SoftwareApplication Software

• End-user softwareEnd-user software• Two major categoriesTwo major categories

– Basic applicationsBasic applications– Specialized applicationsSpecialized applications

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Hardware - Types of Hardware - Types of ComputersComputers

• SupercomputersSupercomputers• Mainframe computersMainframe computers• MinicomputersMinicomputers (or mid-range computers)(or mid-range computers)• Microcomputers


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Microcomputer TypesMicrocomputer Types• Desktop• Media center system u

nits• Notebook or laptop

• Netbooks• Tablet PC• Handheld


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Desktop ComputersDesktop Computers

• Desktop computers Desktop computers are small enough to fit are small enough to fit on top of or alongside a desk, yet are too on top of or alongside a desk, yet are too big to carry aroundbig to carry around

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Media Center System Media Center System Units Units

• Media center system Media center system units blur the line units blur the line between desktop computers and dedicated between desktop computers and dedicated entertainment devices entertainment devices

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Notebook or Laptop Notebook or Laptop ComputersComputers

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• Notebook computersNotebook computers, also known as , also known as laptop laptop computerscomputers, are portable, lightweight, and , are portable, lightweight, and fit into most briefcasesfit into most briefcases


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NetbooksNetbooks

• Similar to notebook computers, Similar to notebook computers, but …but …– SmallerSmaller– LighterLighter– Less expensiveLess expensive

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Tablet PCTablet PC

• In addition to a keyboard, a In addition to a keyboard, a tablet PC tablet PC allows allows you to enter data, write notes, and select you to enter data, write notes, and select commands using a pen styluscommands using a pen stylus

• Handwritten data is digitized and converted Handwritten data is digitized and converted to standard text that can be further to standard text that can be further processed by a word processorprocessed by a word processor

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HandheldHandheld

• Handheld or palm computers, such as Handheld or palm computers, such as Personal digital assistants (PDAs) and Personal digital assistants (PDAs) and smartphones, are amongst the smallest smartphones, are amongst the smallest computing devicescomputing devices

• These systems typically These systems typically combine pen input, writing combine pen input, writing recognition, personal recognition, personal organizational tools, andorganizational tools, andcommunications capabilitiescommunications capabilities

• Smartphones are cell phonesSmartphones are cell phoneswith wireless connections towith wireless connections tothe Internetthe Internet

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Microcomputer HardwareMicrocomputer Hardware

• Four basic categories of equipment:Four basic categories of equipment:– System Unit– Input/Output– Secondary Storage– Communications


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System UnitSystem Unit

• Two important componentsTwo important components

– MicroprocessorMicroprocessor– MemoryMemory

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Input/Output DevicesInput/Output Devices

• Common input devices are the Common input devices are the keyboard keyboard and the and the mousemouse

• Common Common output devices output devices are printers and are printers and monitorsmonitors

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Secondary StorageSecondary Storage

• Unlike memory, secondary storage holds Unlike memory, secondary storage holds data and programs even if electrical power data and programs even if electrical power is not availableis not available

• The most important types of secondary The most important types of secondary media aremedia are hard disks hard disks, , solid-state storagesolid-state storage, , and and optical disksoptical disks

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CommunicationsCommunications

• Communication devices, such as Communication devices, such as modemsmodems, , provide microcomputers with the ability to provide microcomputers with the ability to communicate with other computer systems communicate with other computer systems across the globeacross the globe

• Modems modify telephone communications Modems modify telephone communications into a form that can be processed by a into a form that can be processed by a computercomputer

• Modems also modify computer output into a Modems also modify computer output into a form that can be transmitted across form that can be transmitted across standard telephone linesstandard telephone lines

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DataData

• Raw, unprocessed factsRaw, unprocessed facts• Processed data becomes informationProcessed data becomes information• Digital data is stored electronically in filesDigital data is stored electronically in files

– Document filesDocument files– Worksheet filesWorksheet files– Database filesDatabase files– Presentation filesPresentation files


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Document FilesDocument Files

• Created by word processors to save Created by word processors to save documents such as memos, term papers, documents such as memos, term papers, and lettersand letters

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Worksheet FilesWorksheet Files

• Created by electronic spreadsheets to Created by electronic spreadsheets to analyze things like budgets and to predict analyze things like budgets and to predict salessales

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Database FilesDatabase Files

• Typically created by database management Typically created by database management programs to contain highly structured and programs to contain highly structured and organized dataorganized data

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Presentation FilesPresentation Files

• Created by presentation graphics programs Created by presentation graphics programs to save presentation materials. For to save presentation materials. For example, a file might contain audience example, a file might contain audience handouts, speaker notes, and electronic handouts, speaker notes, and electronic slides.slides.

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Connectivity, the Wireless Connectivity, the Wireless Revolution, the Internet, and Revolution, the Internet, and Cloud ComputingCloud Computing

• ConnectivityConnectivity– Sharing of information Sharing of information – WirelessWireless communication has widespread communication has widespread

useuse• ComputerComputer networksnetworks

– Connected communication system of Connected communication system of computerscomputers

– Largest Largest network network is the Internetis the Internet• Cloud ComputingCloud Computing

– Uses the Internet and the Web to shift Uses the Internet and the Web to shift many computer activities from a user’s many computer activities from a user’s computer to computers on the Internetcomputer to computers on the Internet


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Careers in ITCareers in IT

• For a complete listing of careers, visit For a complete listing of careers, visit http://www.computing2012.com/ http://www.computing2012.com/ keyword: keyword: careerscareers


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A Look to the FutureA Look to the Future

• The Internet and the WebThe Internet and the Web• Powerful SoftwarePowerful Software• Powerful HardwarePowerful Hardware• Security and PrivacySecurity and Privacy• OrganizationsOrganizations• Changing TimesChanging Times


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Open-Ended Questions Open-Ended Questions (Page 1 of 2)(Page 1 of 2)

• Explain the five parts of an information Explain the five parts of an information system. system. What part do people play in this system?What part do people play in this system?

• What is system software? What kinds of What is system software? What kinds of programs are included in system software?programs are included in system software?

• Define and compare basic and specialized Define and compare basic and specialized application software. application software. – Describe some different types of basic Describe some different types of basic

applications. applications. – Describe some types of specialized Describe some types of specialized

applications.applications.


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Open-Ended Questions Open-Ended Questions (Page 2 of 2)(Page 2 of 2)

• Describe the different types of computers. Describe the different types of computers. – What is the most common type? What is the most common type? – What are the types of microcomputers?What are the types of microcomputers?

• What is connectivity? What are wireless What is connectivity? What are wireless devices and the wireless revolution? What is devices and the wireless revolution? What is a computer network? a computer network? What are the Internet and the Web? What is What are the Internet and the Web? What is cloud computing?cloud computing?

O leary2012 intro_ppt_ch01

Technology

software software

internet return

organized data return

types of computers

expensive return

sales return

notebook computers

palm computers