What is and how does wifi work ?

Question

and pros/ cons

Answer 1

It's basically a radio system (transmitter and receiver at each end) that replaces the cable between the router and the computer.

Pros: it's easier than running cables.

Cons: None, if set up correctly.

Answer 2

its like bluetooth

say you have a laptop and you need a internet connection

u turn on ur wi fi and bam u have over the air internet