Computers - back to basics

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Computers - back to basics

  1. 1. Computers: Back to Basics Robin Pierman Schoolcraft College CEPD Winter 2014
  2. 2. Elements of a Computer System  DATA is a collection of independent and unorganized facts.  INFORMATION is the processed and organized data presented in a meaningful form.  DATA PROCESSING is the course of doing things in a sequence of steps.
  3. 3. PROCESSING SYSTEM DATA INFORMATION
  4. 4. What is a Computer?  COMPUTER is an electronic machine that follows a set of instructions in order that it may be able to accept and gather data and transform these into information.
  5. 5. Getting to Know Computers
  6. 6. What does a Computer Do? 1. It accepts and gather data. (INPUT) 2. It processes data to become information. (PROCESSING) 3. It stores data and information. (STORE) 4. It presents information. (OUTPUT)
  7. 7. Information Processing Input Processing Output Storage
  8. 8. Components of a Computer System  HARDWARE is the tangible part of a computer system.  SOFTWARE is the non-tangible part that tells the computer how to do its job.  PEOPLEWARE refer to people who use and operate the computer system, write computer programs, and analyze and design the information system.
  9. 9. Computer Sizes  MAINFRAME are large general purpose computers.  MINICOMPUTER perform multi-tasking and allow many terminals to be connected to their services.  MICROCOMPUTER (Personal Computer) is most widely used especially at home because of its affordable price and manageability.
  10. 10. MAINFRAME COMPUTERS MINICOMPUTERS MICROCOMPUTERS/ PERSONAL COMPUTERS
  11. 11. TABLETS SMARTPHONES CUTTING EDGE TECHNOLOGY
  12. 12. The Battle of the Brands
  13. 13. Discussion  What can you do with a computer?  What kind of computer do you use?  What do you want to do with your computer?
  14. 14. Computers: Back to Basics Robin Pierman Schoolcraft College CEPD Winter 2014
  15. 15. Review of Last Week  What is a computer?  How does a computer work?  What are the components of a computer system?
  16. 16. PROCESSING SYSTEM DATA INFORMATION What is a computer?
  17. 17. How does a computer work? Input Processing Output Storage
  18. 18. Computer User
  19. 19. Hardware  Physical parts of the computer, including processor and memory chips, input/output devices, tapes, disks, modems, cable, etc.
  20. 20. Computer Case  Contains the major components of the computer. It helps protect them.
  21. 21. Front of the Computer Case
  22. 22. Monitor  A display screen to provide “output” to the user. It is where you view the information your are working on.
  23. 23. Keyboard  Used to enter information into the computer and for giving commands.
  24. 24. Mouse  An input device operated by rolling its ball across a flat surface. The mouse is used to control the on- screen pointer by pointing and clicking, double-clicking, or dragging objects on the screen.
  25. 25. Touchpad  A pressure-sensitive and motion sensitive device used in place of a mouse.
  26. 26. Printer  An output device that produces a hard copy on paper. It gives information to the user in printed form.
  27. 27. Scanner  A device that allows pictures to be placed into a computer.
  28. 28. Microphone  Allows the user to record sounds as input to their computer.
  29. 29. Inside the Computer Case
  30. 30. Processor  The CPU – The chip or chips that interpret and execute program instructions and manage the functions of input, output, and storage devices.
  31. 31. RAM  Random Access Memory RAM is a computer’s temporary memory, which exists as chips on the motherboard near the CPU. It stores data or programs while they are being used and requires power.
  32. 32. Hard Disk  Magnetic storage device in the computer.
  33. 33. CD Rom Drive  The drive that plays CDs and reads data that has been stored on the CD.
  34. 34. Sound Card  Connects the speakers and microphone to the computer.
  35. 35. Network Card  A circuit board that connects the computer to the rest of the network usually using special cables.
  36. 36. What are the components of a computer system? Peopleware Software Hardware
  37. 37. What is an operating system?  Play Video
  38. 38. The evolution of Windows
  39. 39. What are the components of a computer system? Peopleware Software Hardware
  40. 40. What is utility software?  It is any system software besides the operating system that helps to maintain, manage, and protect computer system resources
  41. 41. Security Software  Search for and remove viruses and spyware from computers, and guard against attacks
  42. 42. Defragmentation and Disk Utilities  Maintain files on disk and arrange them in a manner that allows for fast access
  43. 43. Backup Utilities  Safeguard files by creating backup copies
  44. 44. Spam and Pop-up Blockers  Remove junk mail and ads
  45. 45. Music Libraries  Copy and store files on CDs and DVDs
  46. 46. Computer User
  47. 47. Application Software (apps)  Play Video
  48. 48. WHAT HARDWARE ARE YOU USING?
  49. 49. WHAT OPERATING SYSTEM ARE YOU USING?
  50. 50. WHAT APPLICATIONS ARE YOU USING?

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