Technology In Action Chapter 1 What is Computer Fluency? What is Computer Literacy? To be computer fluent you must:To be computer fluent you must: –Understand a computer’s capabilities and limitations –Know how to use a computer To be computer fluent you must:To be computer fluent you must: –Understand a computer’s capabilities and limitations –Know how to use a computer

Technology In Action Chapter 1 Being a Savvy Computer User and Consumer Avoid hackers and virusesAvoid hackers and viruses Protect your privacyProtect your privacy Use the Internet wiselyUse the Internet wisely Maintain your computerMaintain your computer Make good purchase decisionsMake good purchase decisions Keep abreast of changes in technologyKeep abreast of changes in technology Avoid hackers and virusesAvoid hackers and viruses Protect your privacyProtect your privacy Use the Internet wiselyUse the Internet wisely Maintain your computerMaintain your computer Make good purchase decisionsMake good purchase decisions Keep abreast of changes in technologyKeep abreast of changes in technology NEXT SLIDE

Technology In Action Chapter 1 Being a Savvy Computer User and Consumer Avoid hackers and virusesAvoid hackers and viruses Protect your privacyProtect your privacy Use the Internet wiselyUse the Internet wisely Maintain your computerMaintain your computer Make good purchase decisionsMake good purchase decisions Keep abreast of changes in technologyKeep abreast of changes in technology Avoid hackers and virusesAvoid hackers and viruses Protect your privacyProtect your privacy Use the Internet wiselyUse the Internet wisely Maintain your computerMaintain your computer Make good purchase decisionsMake good purchase decisions Keep abreast of changes in technologyKeep abreast of changes in technology NEXT SLIDE

Technology In Action Chapter 1 Screen with virus Screen with virus Screen with virus Screen with virus

Technology In Action Chapter 1 Preparing for Your Career Computer careers in:Computer careers in: –Business –The Arts –The Medical Field –Law Enforcement –Legal Fields –Education –The Sciences –Gaming –Homes Computer careers in:Computer careers in: –Business –The Arts –The Medical Field –Law Enforcement –Legal Fields –Education –The Sciences –Gaming –Homes NEXT SLIDE

Technology In Action Chapter 1 Computers in Business NEX SLIDE Tracking merchandise Data mining Point of Sale TerminalsPoint of Sale Terminals

Technology In Action Chapter 1 Computers in the Arts Virtual artVirtual art Virtual danceVirtual dance Virtual artVirtual art Virtual danceVirtual dance NEXT SLIDE

Technology In Action Chapter 1 Computers in the Medical Field Patient simulatorPatient simulator Da Vinci Surgical SystemDa Vinci Surgical System Patient simulatorPatient simulator Da Vinci Surgical SystemDa Vinci Surgical System NEXT SLIDE

Technology In Action Chapter 1 Computers in Law Enforcement Computer forensicsComputer forensics NEXT SLIDE

Technology In Action Chapter 1 Computers in the Legal Fields Surveillance camerasSurveillance cameras Forensic animationForensic animation Surveillance camerasSurveillance cameras Forensic animationForensic animation NEXT SLIDE

Technology In Action Chapter 1 Computers in Education Computer technology in the classroomComputer technology in the classroom NEXT SLIDE

Technology In Action Chapter 1 Computers and the Sciences SupercomputersSupercomputers ArchaeologyArchaeology –Mummy of Nesperennub SupercomputersSupercomputers ArchaeologyArchaeology –Mummy of Nesperennub Skull of Nesperennub scanned in its painted case NEXT SLIDE

Technology In Action Chapter 1 Computer Gaming Careers ProgrammingProgramming 3D animation3D animation ProgrammingProgramming 3D animation3D animation NEXT SLIDE

Technology In Action Chapter 1 Computers at Home RoboticsRobotics Smart appliancesSmart appliances RoboticsRobotics Smart appliancesSmart appliances Robomower Internet-connected refrigerator NEXT SLIDE

Technology In Action Chapter 1 Technology of Tomorrow NanotechnologyNanotechnologyNanotechnology Biomedical Chip ImplantsBiomedical Chip ImplantsBiomedical Chip ImplantsBiomedical Chip Implants Artificial IntelligenceArtificial Intelligence NanotechnologyNanotechnologyNanotechnology Biomedical Chip ImplantsBiomedical Chip ImplantsBiomedical Chip ImplantsBiomedical Chip Implants Artificial IntelligenceArtificial Intelligence NEXT SLIDE

Technology In Action Chapter 1NanotechnologyNanotechnology NEXT SLIDE Nanotechnology is the science revolving around the use of nanostructures to build devices on extremely small scale.

Technology In Action Chapter 1 Biomedical Chip Implants Technological solutions to physical problemsTechnological solutions to physical problems Identity chipsIdentity chips Technological solutions to physical problemsTechnological solutions to physical problems Identity chipsIdentity chips Retinal Implants VeriChip Uses Radio Wave NEXT SLIDE

Technology In Action Chapter 1 Artificial Intelligence RobotsRobots Human Brain & MicrochipsHuman Brain & Microchips RobotsRobots Human Brain & MicrochipsHuman Brain & Microchips NEXT SLIDE

Technology In Action Chapter 1 Challenges Facing a Digital Society Privacy risksPrivacy risks Personal data collectionPersonal data collection SpamSpam Software piracySoftware piracy Copyright infringementCopyright infringement Computer use ethicsComputer use ethics Privacy risksPrivacy risks Personal data collectionPersonal data collection SpamSpam Software piracySoftware piracy Copyright infringementCopyright infringement Computer use ethicsComputer use ethics NEXT SLIDE

Technology In Action Chapter 1 Becoming Computer Fluent Data processingData processing Bits and bytesBits and bytes Computer hardwareComputer hardware Computer softwareComputer software Specialty computersSpecialty computers Data processingData processing Bits and bytesBits and bytes Computer hardwareComputer hardware Computer softwareComputer software Specialty computersSpecialty computers NEXT SLIDE

Technology In Action Chapter 1 What does it mean to be “computer fluent”? If you are computer fluent, you understand the capabilities and limitations of computers and know how to use them wisely. Being computer fluent also enables you to make informed purchasing decisions; use computers in your career; take advantage of future technologies; and grasp the ethical, legal, and societal implications of technology.

Technology In Action Chapter 1 How does being computer fluent make you a savvy computer user and consumer? By understanding how a computer is constructed and how its parts function, you’ll be able to: better avoid hackers, viruses, and Internet headaches; protect your privacy; separate yourself from real risks; maintain, upgrade, and trouble-shoot your computer; and make good purchasing decisions.

Technology In Action Chapter 1 How can becoming computer fluent help you in a career? As computers become more a part of our daily lives, it is difficult to imagine any career that does not use computers in some fashion. Understanding how to use computers effectively will help you be a more productive employee, no matter what profession you choose.

Technology In Action Chapter 1 How can becoming computer fluent help you understand and take advantage of future technologies? By understanding computers and how they work today, you’ll be better able to take advantage of and understand the technologies of tomorrow.

Technology In Action Chapter 1 What kinds of challenges do computers bring to a digital society and how does becoming computer fluent help you deal with these challenges? Computers pose ethical, legal, and moral challenges and questions. Being computer fluent enables you to form educated opinions on these issues.

Technology In Action Chapter 1 Computers are Data Processing Devices Four major functions:Four major functions: –Input data –Process data –Output information –Store data and information Four major functions:Four major functions: –Input data –Process data –Output information –Store data and information DATA IN INFORMATION OUT NEXT SLIDE INFORMATION stored

Technology In Action Chapter 1 Data vs. Information Data WordsWords NumbersNumbers PicturesPictures SoundsSoundsData WordsWords NumbersNumbers PicturesPictures SoundsSoundsInformation OrganizedOrganized Presented in a meaningful wayPresented in a meaningful way Process (616)

Technology In Action Chapter 1 Bits and Bytes: The Language of Computers BitBit –Binary digit –0 or 1 ByteByte –Eight bits –Represent letters, numbers, and special characters BitBit –Binary digit –0 or 1 ByteByte –Eight bits –Represent letters, numbers, and special characters OFF 0 ON 1 Microchip Switch = = A 0 NEXT SLIDE ASCII code

Technology In Action Chapter 1 How Much is a Byte? NAMEABBREVIATIONNUMBER OF BYTESRELATIVE SIZE ByteB1 byteCan hold one character of data. KilobyteKB1,024 bytesCan hold 1,024 characters or about half of a typewritten page double-spaced. MegabyteMB1,048,576 bytesA floppy disk holds approximately 1.4 MB of data, or approximately 768 pages of typed text. GigabyteGB1,073,741,824 bytes Approximately 786,432 pages of text. Since 500 sheets of paper is approximately 2 inches, this represents a stack of paper 262 feet high. TerabyteTB1,099,511,627,77 6 bytes This represents a stack of typewritten pages almost 51 miles high. PetabytePB1,125,899,906,84 2,624 bytes The stack of pages is now 52,000 miles high, or about one-fourth the distance from the Earth to the moon.

Technology In Action Chapter 1 Computer Hardware Input devicesInput devices System unitSystem unit Output devicesOutput devices Storage devicesStorage devices Input devicesInput devices System unitSystem unit Output devicesOutput devices Storage devicesStorage devices NEXT SLIDE

Technology In Action Chapter 1 The rain in Spain Input Devices Enter data to be processedEnter data to be processed –Text –Images –Sound –Video Enter data to be processedEnter data to be processed –Text –Images –Sound –Video ABCD NEXT SLIDE

Technology In Action Chapter 1 System Unit Processes data into usable informationProcesses data into usable information System Unit CPU Motherboard Memory Module NEXT SLIDE

Technology In Action Chapter 1 Output Devices Enable us to see or hear the processed informationEnable us to see or hear the processed information Monitor Speaker Printer NEXT SLIDE

Technology In Action Chapter 1 Storage Devices Enable us to store data or information to be accessed againEnable us to store data or information to be accessed again Hard Disk DriveCD / DVD DriveFloppy Disk Drive Flash Drive NEXT SLIDE

Technology In Action Chapter 1 Input Devices A device that receives information from the outside worldA device that receives information from the outside world –Keyboard –Mouse –Scanner What other input devices can you think of? A device that receives information from the outside worldA device that receives information from the outside world –Keyboard –Mouse –Scanner What other input devices can you think of?

Technology In Action Chapter 1 Output Devices Sends information from the computer to the outside worldSends information from the computer to the outside world –Display –Printer What other output devices can you think of? Sends information from the computer to the outside worldSends information from the computer to the outside world –Display –Printer What other output devices can you think of?

Technology In Action Chapter 1 How are components connected? CPURAMDiskKeyboardMonitor Bus

Technology In Action Chapter 1 Organization of a Computer System Central Processing Unit Main Memory Input Device Output Device Secondary Storage

Technology In Action Chapter 1 What does the “ brain ” look like? processor chip adapter cards memory chips memory slots motherboard Expansion slots for adapter cards

Technology In Action Chapter 1

The CPU Fetches instructionsFetches instructions Carries out the operations commanded by the instructionsCarries out the operations commanded by the instructions Produces some outcome or resultant informationProduces some outcome or resultant information The instructions are part of a program stored as binary numbersThe instructions are part of a program stored as binary numbers Fetches instructionsFetches instructions Carries out the operations commanded by the instructionsCarries out the operations commanded by the instructions Produces some outcome or resultant informationProduces some outcome or resultant information The instructions are part of a program stored as binary numbersThe instructions are part of a program stored as binary numbers

Technology In Action Chapter 1 Main Memory Commonly known as RAM (Random Access Memory)Commonly known as RAM (Random Access Memory) Consists of sequentially numbered storage locationsConsists of sequentially numbered storage locations In most contemporary computers, each location can store 8 bits, called a byteIn most contemporary computers, each location can store 8 bits, called a byte RAM is normally a volatile storage mediumRAM is normally a volatile storage medium Commonly known as RAM (Random Access Memory)Commonly known as RAM (Random Access Memory) Consists of sequentially numbered storage locationsConsists of sequentially numbered storage locations In most contemporary computers, each location can store 8 bits, called a byteIn most contemporary computers, each location can store 8 bits, called a byte RAM is normally a volatile storage mediumRAM is normally a volatile storage medium

Technology In Action Chapter 1 Source => Object User/programmer writes computer program in high-level programming language Translator program converts high-level language code into machine-readable code Computer processes object (machine) code and produces the desired results SOURCE CODE Compiler OR Interpretter OBJECT CODE

Technology In Action Chapter 1 The Language Translation Process Translator Software Compiler (a+b) / 2 Source Code Object Code High-level Language Machine Language A single expression in a high-level language (a+b/2) usually requires several primitive operations in the machine language.

Technology In Action Chapter 1 Software: Two Broad Categories System softwareSystem software –Operating system Application softwareApplication software –Word processor –Spreadsheets –Photo editors System softwareSystem software –Operating system Application softwareApplication software –Word processor –Spreadsheets –Photo editors

Technology In Action Chapter 1 The Operating System Bridge between hardware and softwareBridge between hardware and software Provides user interfaceProvides user interface Platform specificPlatform specific Varies between Macintosh and PCVaries between Macintosh and PC Definition of OSDefinition of OSDefinition of OSDefinition of OS Bridge between hardware and softwareBridge between hardware and software Provides user interfaceProvides user interface Platform specificPlatform specific Varies between Macintosh and PCVaries between Macintosh and PC Definition of OSDefinition of OSDefinition of OSDefinition of OS

Technology In Action Chapter 1 Computer Platforms: PCs and Macs PC CPU – Intel, AMDCPU – Intel, AMD Operating system – Microsoft WindowsOperating system – Microsoft WindowsPC CPU – Intel, AMDCPU – Intel, AMD Operating system – Microsoft WindowsOperating system – Microsoft WindowsMac CPU – MotorolaCPU – Motorola Operating system – Apple Mac OSOperating system – Apple Mac OS NEXT SLIDE

Technology In Action Chapter 1 Specialty Computers PDAPDA ServerServer MainframeMainframe SupercomputerSupercomputer PDAPDA ServerServer MainframeMainframe SupercomputerSupercomputer Server Mainframe Supercomputer PDA NEXT SLIDE

Technology In Action Chapter 1 Chapter 1 Summary Questions What does it mean to be “computer fluent”?What does it mean to be “computer fluent”? What is a savvy computer user and consumer?What is a savvy computer user and consumer? How can becoming computer fluent help you in a career?How can becoming computer fluent help you in a career? What are some future technologies?What are some future technologies? What kinds of challenges do computers bring to societyWhat kinds of challenges do computers bring to society What are a computer’s four main functions?What are a computer’s four main functions? What does it mean to be “computer fluent”?What does it mean to be “computer fluent”? What is a savvy computer user and consumer?What is a savvy computer user and consumer? How can becoming computer fluent help you in a career?How can becoming computer fluent help you in a career? What are some future technologies?What are some future technologies? What kinds of challenges do computers bring to societyWhat kinds of challenges do computers bring to society What are a computer’s four main functions?What are a computer’s four main functions? NEXT SLIDE

Technology In Action Chapter 1 What is the difference between data and information?What is the difference between data and information? What are a bit and a byte?What are a bit and a byte? What hardware does a computer use to perform its functions?What hardware does a computer use to perform its functions? What are the two main types of software?What are the two main types of software? What different kinds of computers are there?What different kinds of computers are there? What is the difference between data and information?What is the difference between data and information? What are a bit and a byte?What are a bit and a byte? What hardware does a computer use to perform its functions?What hardware does a computer use to perform its functions? What are the two main types of software?What are the two main types of software? What different kinds of computers are there?What different kinds of computers are there? Chapter 1 Summary Questions LAST SLIDE