A computer is a device whose main function is to process large amounts of information quickly and accurately, and this procedure is done thanks to hardware and software.
Answer:
WAN or wide area network
Explanation:
The Internet is the most basic example of a WAN. It is connecting all computers together around the world.
Answer:
There must be a proxy server that is not allowing access to websites
Explanation:
A wireless network facility provided in colleges, institutions, or libraries is secured with a proxy server to filter websites so that users can use the network facility for a definite purpose. Thus, that proxy server is not allowing access to all of the websites to the user on the internet except for two.
Most cars can go at least 5,000 miles before an oil change. “Change your car's engine oil every three months, or 3,000 miles.
Answer:
200 nm
Explanation:
We need a constructive interference to see the bright reflection
we know that
where m=1 and
is the wavelength of the gasoline
so 
putting the value of m and
in thickness equation

so the thickness of the film will be 200 nm