Output

• What is the primary function of a computer display monitor?

  It displays information in visual form, using text and graphics.
• What is the portion of the monitor that displays information called?

  The screen or video display terminal.
• What are the three main types of monitors mentioned?

  • CRT Monitors
  • LCD Monitors
  • LED Monitors
• What does CRT stand for in CRT monitors?

  Cathode Ray Tubes.
• What are the physical characteristics of CRT monitors?

  They are relatively big (14" to 16" deep) and heavy (over 15 lbs).
• What technology has been used in laptops for some time and is now available for desktop PCs?

  Liquid Crystal Display (LCD) technology.
• What is the function of LED monitors?


  They are used as a display and lighting technology in various electronic products.
• How do LCD projectors work?

  They utilize two sheets of polarizing material with a liquid crystal solution between them, aligning crystals to control light passage.
• What is a Smart Board?

  A type of display screen with a touch-sensitive transparent panel covering it.
• Printer

  To print text or illustrations on paper.
• What are the types of printers mentioned?

  • Ink-Jet or Bubble-Jet Printer
  • Laser Printer
  • LCD and LED Printer
  • Line Printer
  • Thermal Printer
• Ink-Jet or Bubble-Jet Printer - It sprays ink at a sheet of paper to produce high-quality text and graphics.
• Laser Printer


  It uses the same technology as copy machines to produce high-quality text and graphics.
• LCD and LED Printer


  It uses liquid crystals or light-emitting diodes rather than a laser to produce an image.
• Line Printer - It contains a chain of characters or pins that print an entire line at one time, being very fast but producing low-quality print.
• Thermal Printer work?


  It pushes heated pins against heat-sensitive paper to print.
• Speakers


  To play sound.