02.00 Understand Computer Fundamentals.

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02.00 Understand Computer Fundamentals.

• Unit Objective
• 02.02

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Computer Workstation
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Maintain Your Computer System

• Read your manual before operating your computer
• Make sure all plug-ins are secure at all times
• Keep the surrounding area dirt and dust free
• Keep eraser gum, food, and liquids away from the
  keyboard
• Do not stick pens or pencils into the drives on
  the CPU
• Keep your fingers and hands free of oily
  products, like lotion,
• and some hair products
• Clean the monitor with electronic wipes and do
  not touch it with your fingers

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What Are Peripherals?

• A peripheral device is one that is attached to a
  computer in order to expand its ability to
  perform more tasks
• Are generally external
• Some of the more common devices are printers,
  disk drives, scanners, microphones, speakers, and
  cameras
• The devices can be input and output devices
• Some input devices are mouse, joystick,
  keyboard
• Some output devices are monitor, projector,
  speakers
• Some devices function as input and output are
  media card readers, digital camcorders, digital
  mixers, and touch screens

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Peripheral Devices

• Printer provides a hard copy of a document
• Digital Pen captures and saves handwriting to
  the computer as you write on special digital
  paper.

• Scanner allows the user to computer to make
  copies of photos and other documents
• Tablet small, light pcs that function like
  portable writing tablets

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Peripheral Devices (Contd.)

• Joystick a handheld device that is often used
  with games
• Headset designed to fit around the head to
  listen to spoken or recorded sounds.

• Digital Camera captures and stores still images
  as digital data

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Types of Printers

• Dot Matrix
• Uses a pattern of dots to form images on
  paper
• Less expensive and images not as clear
• Inkjet
• Better quality of printed document
• Uses ink cartridge
• Less expensive than laser

• Laser
• Best quality of printed document
• Uses laser beam and toner
• to produce images
• Most expensive
• Quick