HARDWARE.
 ·They are all the components that are outside the computer.
-Keyboard.
It is a component that is used to type, it's based on the writing machines.
 

 
 
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-Mouse.
It is a component uses to select things over the screen. It has two buttons and a little wheel. It's connected through a wire.
 

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-Screen.
It is a component where we can see the information, by visual contact.

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-Router.
It is  component that connects a computer to the internet . It translates information to or from the internet. It packs or unpacks the information, and it writes or read tags on the information packs.

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-Speakers.
It converts electrical signals into sound. 

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-USB ( Universal Serial Bus).
It is a component that has data storage device that includes flash memory.