Learning about Peripherals

-   Peripherals are used for computer input and output
-   Keyboards are input devices because each key pressed reports back to a software program
-   A keyboard also gives commands to the operating system of a computer, such as the Windows Ctrl- Alt-Delete combination, which brings up a task window.
-   Two types of mousses:
             1)USB wireless optical mouse
             2)Trackball mouse
-   Monitors are output devices because the information's answers shows up on it.

-   High-definition monitors have better resolution, which means a clearer picture.
-   A pixel (picture element) is the smallest colored dot that can be displayed on the screen. The more pixels the more detail.
-   Standard resolution: 1280 x 720 pixels (width x height)
   High definition: 1920 x 1080 pixels

-   A printer is an output device because it prints OUT the papers needed.

-   External devices are things such as USB Drives.

-   Towers usually have at least one bay for an optical drive, such as a DVD or Blu-ray drive. Different sizes and types can all be loaded in the same case.