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clausura convencion

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clausura convencion

  1. 1. Computer Concepts - Illustrated Introductory, Seventh Edition UNIT A: Computer and Internet Basics
  2. 2. Objectives <ul><li>Introduce digital technology </li></ul><ul><li>Define computers </li></ul><ul><li>Explore computer functions </li></ul><ul><li>Categorize computers </li></ul><ul><li>Examine personal computer systems </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  3. 3. Objectives <ul><li>Introduce software </li></ul><ul><li>Introduce the Internet and the Web </li></ul><ul><li>Understand email basics </li></ul><ul><li>Talking Points: Who Is Reading Your Email? </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  4. 4. Introducing Digital Technology <ul><li>Digital Technology – includes computers and the Internet </li></ul><ul><ul><li>Has changed our lives </li></ul></ul><ul><ul><ul><li>Entertainment, information, communication </li></ul></ul></ul><ul><ul><li>Allows people in societies around world to </li></ul></ul><ul><ul><ul><li>Use innovative products </li></ul></ul></ul><ul><ul><ul><li>Adjust to industries in transformation </li></ul></ul></ul><ul><ul><ul><li>Watch new markets emerge </li></ul></ul></ul><ul><ul><ul><li>Deal with complex issues which influence culture, politics, and economics </li></ul></ul></ul>ComputerConcepts – Illustrated Introductory, Seventh Edition
  5. 5. Introducing Digital Technology <ul><li>Digital revolution </li></ul><ul><ul><li>Ongoing process of social, political, and economic change </li></ul></ul><ul><ul><li>Brought about by digital technology </li></ul></ul><ul><li>Information society </li></ul><ul><ul><li>Owning, generating, and distributing information becomes significant economically and socially </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  6. 6. Introducing Digital Technology <ul><li>Digital revolution impacts tools available to you </li></ul><ul><ul><li>Computers </li></ul></ul><ul><ul><li>Portable media devices </li></ul></ul><ul><ul><li>Cameras and camcorders </li></ul></ul><ul><ul><li>Cell phones </li></ul></ul><ul><ul><li>Radios and television </li></ul></ul><ul><ul><li>GPS </li></ul></ul><ul><ul><li>DVD and CD players </li></ul></ul><ul><ul><li>Digital voice recorders </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  7. 7. Introducing Digital Technology <ul><li>Digital revolution began in 1940s and 1950s </li></ul><ul><ul><li>Transistors </li></ul></ul><ul><ul><li>Integrated circuits – called computer chips </li></ul></ul><ul><li>Digital watches – 1972 </li></ul><ul><li>Handheld electronic calculators - 1973 </li></ul><ul><li>First successful mass-produced computer - Apple II in 1977 </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  8. 8. Introducing Digital Technology <ul><li>Personal computers started slowly in marketplace </li></ul><ul><ul><li>Apple I (1976) and Apple II (1977) </li></ul></ul><ul><ul><li>No compelling software </li></ul></ul><ul><li>IBM introduced IBM PC - 1981 </li></ul><ul><ul><li>Brought PCs to consumer </li></ul></ul><ul><li>Computer named Machine of the Year </li></ul><ul><ul><li>Time magazine - 1982 </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  9. 9. Introducing Digital Technology <ul><li>Why do I need a computer? </li></ul><ul><ul><li>Create documents </li></ul></ul><ul><ul><li>Analyze numbers </li></ul></ul><ul><ul><li>Edit photos </li></ul></ul><ul><ul><li>Create graphics </li></ul></ul><ul><ul><li>Access information </li></ul></ul><ul><ul><li>Communicate </li></ul></ul><ul><ul><li>Network </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  10. 10. Introducing Digital Technology <ul><li>Digitization </li></ul><ul><ul><li>Process of converting text, numbers, sound, photos, and video data into data that can be processed by digital devices </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  11. 11. Defining Computers <ul><li>Computer </li></ul><ul><ul><li>Electronic device that </li></ul></ul><ul><ul><ul><li>accepts input </li></ul></ul></ul><ul><ul><ul><li>processes data </li></ul></ul></ul><ul><ul><ul><li>stores data </li></ul></ul></ul><ul><ul><ul><li>produces output based on instructions in stored programs </li></ul></ul></ul><ul><li>Personal Computer (PC) </li></ul><ul><ul><li>Computer system includes </li></ul></ul><ul><ul><ul><li>Hardware </li></ul></ul></ul><ul><ul><ul><li>Peripheral devices </li></ul></ul></ul><ul><ul><ul><li>Software </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  12. 12. Defining Computers <ul><li>Hardware </li></ul><ul><ul><li>Electronic and mechanical parts of computer </li></ul></ul><ul><li>System unit </li></ul><ul><ul><li>Core hardware in computer system </li></ul></ul><ul><li>Peripheral device </li></ul><ul><ul><li>Hardware added to computer system to expand what computer can do </li></ul></ul><ul><li>Software </li></ul><ul><ul><li>Computer program tells computer how to perform particular tasks </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  13. 13. Defining Computers Computer Concepts – Illustrated Introductory, Seventh Edition
  14. 14. Defining Computers <ul><li>Input device </li></ul><ul><ul><li>Used to input data into computer </li></ul></ul><ul><ul><ul><li>keyboard or mouse, </li></ul></ul></ul><ul><li>Output device </li></ul><ul><ul><li>Makes output visible and/or usable </li></ul></ul><ul><ul><ul><li>Monitor, printer, or speakers </li></ul></ul></ul><ul><li>Digital convergence </li></ul><ul><ul><li>Several technologies with distinct functionalities evolve to form single product </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  15. 15. Exploring How Computers Work <ul><li>User ID and password </li></ul><ul><ul><li>Assigned for security reasons </li></ul></ul><ul><ul><li>Usually assigned by system administrator </li></ul></ul><ul><li>Computer program (program) </li></ul><ul><ul><li>Instructions tell computer how to carry out processing tasks </li></ul></ul><ul><ul><li>Running program = start program so it is ready for use. </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  16. 16. Exploring How Computers Work <ul><li>Input </li></ul><ul><ul><li>Anything put into computer </li></ul></ul><ul><li>Processing </li></ul><ul><ul><li>Working with data </li></ul></ul><ul><ul><li>Takes place in processor </li></ul></ul><ul><li>CPU (Central Processing Unit) </li></ul><ul><ul><li>Main processor, or brain, of computer </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  17. 17. Exploring How Computers Work <ul><li>Memory </li></ul><ul><ul><li>Temporarily holds data waiting to be processed, stored, and output </li></ul></ul><ul><li>Storage </li></ul><ul><ul><li>Holds data permanently </li></ul></ul><ul><ul><li>Not immediately needed for processing </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  18. 18. Exploring How Computers Work <ul><li>File </li></ul><ul><ul><li>Named collection of data on storage medium </li></ul></ul><ul><ul><ul><li>Hard disk, DVD, CD, flash drive </li></ul></ul></ul><ul><li>Filename </li></ul><ul><ul><li>Can give a clue to its contents </li></ul></ul><ul><ul><li>Consists of two parts </li></ul></ul><ul><ul><ul><li>Name left of period </li></ul></ul></ul><ul><ul><ul><li>File extension right of period </li></ul></ul></ul><ul><li>File extension </li></ul><ul><ul><li>Period and letters following </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  19. 19. Exploring How Computers Work <ul><li>Output </li></ul><ul><ul><li>Processed results produced by computer </li></ul></ul><ul><ul><ul><li>Reports, documents, music, graphs, pictures </li></ul></ul></ul><ul><li>Output device displays, prints, or transmits results of processing </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  20. 20. Exploring How Computers Work <ul><li>Basic Computer Functions </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  21. 21. Categorizing Computers <ul><li>Computers are categorized by: </li></ul><ul><ul><li>How used </li></ul></ul><ul><ul><li>Cost </li></ul></ul><ul><ul><li>Size </li></ul></ul><ul><ul><li>Processing capability </li></ul></ul><ul><li>Helps purchasers make decisions </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  22. 22. Categorizing Computers <ul><li>Personal computers (PC) </li></ul><ul><ul><li>Desktop computers, notebooks, tablets </li></ul></ul><ul><ul><li>Designed to meet needs of individuals, schools, home users, small businesses </li></ul></ul><ul><ul><li>Wide variety of software </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  23. 23. Categorizing Computers <ul><li>Desktop </li></ul><ul><ul><li>Fits on or under desk </li></ul></ul><ul><ul><li>Vertical case called Tower </li></ul></ul><ul><ul><li>Easily upgradeable </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  24. 24. Categorizing Computers <ul><li>Notebook </li></ul><ul><ul><li>Move computer from place to place </li></ul></ul><ul><ul><li>Smaller than desktop, same computing power </li></ul></ul><ul><ul><li>Generally cost more than desktops </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  25. 25. Categorizing Computers <ul><li>Tablet </li></ul><ul><ul><li>Portable </li></ul></ul><ul><ul><li>Touch sensitive screen </li></ul></ul><ul><ul><li>Write or draw </li></ul></ul><ul><ul><li>Many applications involved handwritten input </li></ul></ul><ul><ul><li>Used ‘on the go’ </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  26. 26. Categorizing Computers <ul><li>Ultra-mobile </li></ul><ul><ul><li>Small tablet </li></ul></ul><ul><ul><li>Runs most software designed for larger computers </li></ul></ul><ul><ul><li>Many have camera, GPS, games </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  27. 27. Categorizing Computers <ul><li>Handheld computer </li></ul><ul><ul><li>Essentially a personal digital assistant (PDA) enhanced with features </li></ul></ul><ul><ul><ul><li>Removable storage, email, Web access, voice communication, camera, GPS </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  28. 28. Categorizing Computers <ul><li>Workstations </li></ul><ul><ul><li>Powerful desktop computers </li></ul></ul><ul><ul><ul><li>Designed for specialized tasks </li></ul></ul></ul><ul><ul><ul><li>Lots of processing speed </li></ul></ul></ul><ul><ul><ul><li>Medical imaging, full-motion video graphics, design </li></ul></ul></ul><ul><li>Mainframe computer </li></ul><ul><ul><li>Large, expensive computer used to process data from hundreds or thousands of users </li></ul></ul><ul><li>Supercomputer </li></ul><ul><ul><li>One of fastest computers in world when built </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  29. 29. Categorizing Computers <ul><li>Form factor </li></ul><ul><ul><li>Refers to physical attributes and intended use of component </li></ul></ul><ul><li>Server </li></ul><ul><ul><li>Computer hardware or specific software, or a combination, which serves other computers by supplying them with data </li></ul></ul><ul><ul><li>Almost any type of computer can be a server </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  30. 30. Examining Personal Computers <ul><li>Computer system refers to a computer and its attached devices </li></ul><ul><li>PCs vary in size and design, but typically contain similar elements </li></ul><ul><li>System unit </li></ul><ul><ul><li>Case that holds power supply, storage and circuit boards, including “motherboard” </li></ul></ul><ul><li>Display device (monitor) </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  31. 31. Examining Personal Computers <ul><li>Basic computer system parts </li></ul><ul><ul><li>System unit </li></ul></ul><ul><ul><ul><li>Case that holds power supply, storage and circuit boards, including “motherboard” </li></ul></ul></ul><ul><ul><li>Display device (monitor) </li></ul></ul><ul><ul><li>Keyboard and mouse – input devices </li></ul></ul><ul><ul><li>Storage devices </li></ul></ul><ul><ul><ul><li>Hard disk, disk drives, USB flash drives </li></ul></ul></ul><ul><ul><ul><li>Data is read from and written to storage devices </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  32. 32. Examining Personal Computers <ul><li>Basic computer system parts (cont’d.) </li></ul><ul><ul><li>Speakers and sound cards </li></ul></ul><ul><ul><li>Printer – output device </li></ul></ul><ul><ul><li>Modem and network cards </li></ul></ul><ul><ul><ul><li>Establish Internet/network connection </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  33. 33. Examining Personal Computers <ul><li>Computer network </li></ul><ul><ul><li>Two or more computers and other devices connected for purpose of sharing data and programs </li></ul></ul><ul><li>LAN (Local Area Network) </li></ul><ul><ul><li>Network located within limited geographical area </li></ul></ul><ul><li>Internet </li></ul><ul><ul><li>Largest network in world </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  34. 34. Introducing Software <ul><li>Computers need software to operate </li></ul><ul><li>Application software help user carry out tasks </li></ul><ul><ul><li>Word processing, spreadsheets, etc. </li></ul></ul><ul><li>Windows software designed for Windows operating system </li></ul><ul><li>Operating system software </li></ul><ul><ul><li>Master controller of all computer activities </li></ul></ul><ul><ul><li>Classified as system software </li></ul></ul><ul><ul><ul><li>Helps computer monitor itself to function efficiently </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  35. 35. Introducing Software <ul><li>Platform </li></ul><ul><ul><li>Underlying hardware and software of computer system </li></ul></ul><ul><ul><li>Defined by processor and OS </li></ul></ul><ul><li>Most OSs use graphical user interface (GUI) </li></ul><ul><ul><li>Manipulated by mouse </li></ul></ul><ul><ul><li>Icons, menus, buttons </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  36. 36. Introducing Software Elements of a GUI Computer Concepts – Illustrated Introductory, Seventh Edition
  37. 37. Introducing Software <ul><li>Sharing files depends on system compatibility </li></ul><ul><li>Windows and Mac platforms originally not compatible </li></ul><ul><li>Some application software created version for Windows and Mac </li></ul><ul><li>Can share files if both computers use same software </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  38. 38. Introducing the Internet and the Web <ul><li>Internet offers abundant resources </li></ul><ul><ul><li>Information </li></ul></ul><ul><ul><li>Communication </li></ul></ul><ul><ul><li>Commerce </li></ul></ul><ul><ul><li>Entertainment </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  39. 39. Introducing the Internet and the Web <ul><li>Communication </li></ul><ul><ul><li>Email (electronic mail) </li></ul></ul><ul><ul><ul><li>One of most popular ways to communicate </li></ul></ul></ul><ul><ul><li>Chat groups </li></ul></ul><ul><ul><ul><li>Several people communicating in real time by typing comments to each other </li></ul></ul></ul><ul><ul><li>Internet telephony </li></ul></ul><ul><ul><ul><li>Allows voice conversations to travel over Internet </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  40. 40. Introducing the Internet and the Web <ul><li>Instant Messaging (IM) </li></ul><ul><ul><li>Private version of chat </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  41. 41. Introducing the Internet and the Web <ul><li>Social networks </li></ul><ul><ul><li>MySpace, Facebook </li></ul></ul><ul><ul><ul><li>Used to stay in touch with friends, family, and other members of same social network </li></ul></ul></ul><ul><li>Blog </li></ul><ul><ul><li>Written personal journal posted on Web with free access by general public </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  42. 42. Introducing the Internet and the Web <ul><li>The Web </li></ul><ul><ul><li>Collection of linked documents graphics, and sound accessed over Internet </li></ul></ul><ul><li>Web pages </li></ul><ul><ul><li>Part of Internet used most often </li></ul></ul><ul><ul><li>Connected through use of hypertext or links </li></ul></ul><ul><ul><li>Can include text, photos, video, sound, animation </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  43. 43. Introducing the Internet and the Web <ul><li>Browser </li></ul><ul><ul><li>Program that allows you to view Web pages on computer </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  44. 44. Introducing the Internet and the Web <ul><li>Web site </li></ul><ul><ul><li>Web pages on related topic that are grouped together </li></ul></ul><ul><li>Home page </li></ul><ul><ul><li>Main page of Web site </li></ul></ul><ul><ul><li>Acts as doorway to rest of site </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  45. 45. Introducing the Internet and the Web <ul><li>Finding information on Web </li></ul><ul><ul><li>Search engine </li></ul></ul><ul><ul><ul><li>Web site providing variety of tools to help find information </li></ul></ul></ul><ul><ul><li>Keyword </li></ul></ul><ul><ul><ul><li>Word or phrase to describe information you are trying to find </li></ul></ul></ul><ul><ul><ul><li>Search engine will provide links to pages that match keyword </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  46. 46. <ul><li>Uniform Resource Locator (URL) </li></ul><ul><ul><li>Unique address for Web page </li></ul></ul><ul><ul><li>Indicates: </li></ul></ul><ul><ul><ul><li>computer on which page is stored </li></ul></ul></ul><ul><ul><ul><li>location on Web server </li></ul></ul></ul><ul><ul><ul><li>folder name or names in which it is stored </li></ul></ul></ul><ul><ul><ul><li>Filename and file extension </li></ul></ul></ul><ul><li>Hypertext Transfer Protocol (HTTP) </li></ul><ul><ul><li>Communications standard used to transfer information over Internet </li></ul></ul>Introducing the Internet and the Web Computer Concepts – Illustrated Introductory, Seventh Edition
  47. 47. Understanding Email Basics <ul><li>Email accounts available through email providers </li></ul><ul><ul><li>Universities, Gmail, EarthLink </li></ul></ul><ul><li>Accounts include storage area called mailbox </li></ul><ul><li>Email address </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  48. 48. Understanding Email Basics <ul><li>In order to send and receive email </li></ul><ul><ul><li>Computer must be hooked up to Internet </li></ul></ul><ul><ul><li>Must have email software installed </li></ul></ul><ul><li>Email message parts </li></ul><ul><ul><li>Message header </li></ul></ul><ul><ul><ul><li>Address of receiver(s), message subtext, names of any attachments </li></ul></ul></ul><ul><ul><li>Body </li></ul></ul><ul><ul><ul><li>Actual message </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  49. 49. Understanding Email Basics <ul><li>Email message parts </li></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  50. 50. Understanding Email Basics Email Features Computer Concepts – Illustrated Introductory, Seventh Edition
  51. 51. Understanding Email Basics <ul><li>Store-and-forward technology </li></ul><ul><ul><li>Communications method in which data can be stored until transmission is possible </li></ul></ul><ul><li>Email attachments </li></ul><ul><ul><li>In addition to body of message, you can attach </li></ul></ul><ul><ul><ul><li>Documents, spreadsheets, photos, video, sounds </li></ul></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  52. 52. Understanding Email Basics <ul><li>Netiquette (Internet etiquette) </li></ul><ul><ul><li>Guidelines for maintaining civilized and effective communication in online discussions and email exchanges </li></ul></ul><ul><ul><ul><li>All caps considered SHOUTING AND RUDE </li></ul></ul></ul><ul><li>Never write anything personal or damaging in an email </li></ul><ul><ul><li>Nonprivate form of communication </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  53. 53. Talking Points: WHO IS READING YOUR EMAIL? <ul><li>Who is Reading your Email? </li></ul><ul><li>Electronic Communications Privacy Act of 2000 </li></ul><ul><ul><li>Prohibits use of email as evidence unless judge approves search warrant </li></ul></ul><ul><ul><li>No such protection offered in workplace </li></ul></ul><ul><ul><li>Many businesses monitor email </li></ul></ul><ul><li>Patriot Act </li></ul><ul><ul><li>Relaxes rules for obtaining and implementing search warrant </li></ul></ul><ul><ul><li>Easier to get email logs and addresses from email provider </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  54. 54. Talking Points: WHO IS READING YOUR EMAIL? <ul><li>Your email might become public </li></ul><ul><ul><li>Forwarding </li></ul></ul><ul><ul><li>Technicians might see it during routine maintenance </li></ul></ul><ul><ul><li>Email exchanges, including those you delete, can be stored as backup on server </li></ul></ul><ul><li>Some Web-based providers monitor how often you log in </li></ul><ul><ul><li>May monitor keystrokes to map which links you click </li></ul></ul>Computer Concepts – Illustrated Introductory, Seventh Edition
  55. 55. Talking Points: WHO IS READING YOUR EMAIL? Computer Concepts – Illustrated Introductory, Seventh Edition <ul><li>Think of email as postcard, rather than letter </li></ul><ul><li>Save your controversial comments for face-to-face conversations </li></ul>

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