What is wifi and how do I know if my house has it?

[casinocats]

Hello,
We do have cable and tv that is built into our sales contrtact for these condos.
Does this mean I am pay ing aol and Verizon dsl for nothing? A friend says I ju st need a router with antenna. I know very little re tech bu t am wondering as I spend a lot of money on aol and verizon dsl.

 

[Dark Lord of Tech]

http://en.wikipedia.org/wiki/Wi-Fi

http://computer.howstuffworks.com/wireless-network1.htm