Anatomy of a computer

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Across
  1. 3. I activate when you turn on a computer or per
  2. 4. my keyboard port is purple and my mouse is green
  3. 5. I can transfer your data as fast as 400Mbps
  4. 6. card I often have integrated sound chips
  5. 7. when I have reached my full capacity, the processor redirects the excess data to your hard drive
  6. 8. I house your graphics card, which supplies the image to your monitor
  7. 10. port you can attach older key board, mice and modems to me
  8. 11. I am the brain that carries out your computers instructions
Down
  1. 1. many devices like mp3 players, modern printers, and PDA's need my connections
  2. 2. my most popular sizes are ATX and microATX
  3. 4. you can add certain devices like modems or sound cards into my slot
  4. 5. systems checks before starting your main OS
  5. 9. I am an ugly component with colourful cables
  6. 12. port when buying me you want to make sure you have a USB cable