CAT Toets 1

• A printer is used to print documents.
• Two types of Printers:

  Laser printer

  Inkjet printer
• Inkjet Printer:

  • Sprays small dots onto paper
  • Cheap to buy
  • Good quality photo's
  • Slowwer than laser printer
• Laser Printer:

  • Uses toner not ink
  • More expensive than inkjet
  • Cheaper to run
  • Way faster than inkjet
• Information Processing Cycle:

  1. Input ( Keyboard )
  2. Processing ( CPU )
  3. Output ( Monitor )
  4. Storage ( Hard drive )
• Audio files:

  • Any media player program such as Windows Media Player.
  • File extension - mp3
• The first part of a file is the filename the second part is the extension.
• Input and output

  • The most common input is mouse,keyboard or touch screen
  • The type of hardware that is both input and output is touch screen
• Flash drive

  • These are relatively cheap storage devices that uses electronic memory to store their data
• Repetitive strain injury

  • RSI is injuries resulting from fast, repetitive work.
  • Prevent: Good posture, ergonomically designed equipment.
• AutoCAD - computer aided design

  • It is software used for precise 2D and 3D drafting.
• Shortcuts

  • Can be created to point to any file,folder or other resource.
  • A shortcut only points to the original item.
• Optical mouse

  • Uses laser to move curser on screen.
• Program control

  1. Left-click: Select something
  2. Right-click: Gives options
  3. Dubble-click: Opens file or folder
  4. Drag: Move or resize
• Computer Specification

  • Space
  • Speed of CPU
  • Amount of RAM - Random Access Memory
• The screen size measurements of a monitor is done diagnoly and in inches
• Disadvantages of a wireless mouse

  1. More expensive
  2. More pround to get stolen or lost
  3. Pround to interferiance
  4. It has battery's that need to be changed
• Connecting wireless keyboard

  • Bluetooth
• Data Backup

  • Using external hard drive to backup
  • Use cloud storage
• Function of ''screen print''

  • It takes a screenshot of your screen
• Data and Information

  • Data: Unprocessed items
  • Information: Processed data
• Input and Output

  • Input: It's the data and instructions given to a computer.
  • Output: It's what you get out of the computer.
• Plug - and - play

  • It is essentails that can be used imidiatly when plugged in.
• Printer Queue

  • Go to the printer settings to find.
• Ergonomics

  • The study and design of the workplace for the comfort and safety of people in the work enviroments