A group of two or more computer systems linked together via communication devices is called: A Network
"giga" is the prefix denoting "billion," so gigahertz means "billion hertz"
Therefore answer is One Billion
which question are u referring too
<span>If a attachment is not reliable to open, terrible effects can happen, peradventure it may have a virus or even malware that can destroy a computers software.
To avoid this and stay on the safe side, try the following:-
- Open it in protected view
- Do not save the attachment on your computer
- Look at the author and read the message carefully to make sure it is not biased.
- Open it on a flash-drive </span>
