Chapter 4 essentials

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Chapter 4 essentials
2014-02-25 17:17:01
ch4 bb zz
CompTIA Strata study guide
the few question at the end of the chapter
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  1. Demonstrate the proper use of various computer types.
    Desktop PCs are the most comfortable to use, but they take up the most space and are the least portable.

    Notebooks are more portable but can still be cumbersome to carry around.

    Netbooks are even more portable, but the small keyboard and screen size may be uncomfortable to use for extended sessions.

    Tablets and smartphones provide the ultimate in portability but at the expense of visibility and ease of use.
  2. Understand the differences between cases.
    Nonportable (desktop) A case that sits tall on its smallest side is called a tower. A case that sits flat on its side is called a desktop. (Note that the term desktop has two different meanings here.)
  3. Verify voltage and power requirements.
    A PC is designed to run on AC current, either 110v or 230v, depending on the country and region. Desktop PCs sometimes have a switch on the power supply that determines which voltage it accepts. Laptop PCs typically have different power cords for one voltage or the other. ItÂ’s important to verify the voltage a system needs against the voltage your wall outlet provides.
  4. Understand the common ports.
    Look on the back of a desktop PC, or along the sides of a notebook, and check the ports available there. You should be able to identify what each of these ports is used for. Some of the most common ones include USB, VGA, FireWire (IEEE1394), Ethernet (RJ-45), and 3.5 mm (audio).
  5. Keyboard
  6. Mouse
  7. game port
  8. RJ-45
  9. Printer
  10. Serial port(dial-up modem)
  11. Sound
  12. DVI interface
  13. USB
  14. firewire