How can I tell if my computer has wireless technology?

[Mr Exotic]

Yep, I would like to have wireless myself. I've got my cable line, modem, and router back here in my office area which is in the back of the house, but my Xbox (for xbox live) is in the front living room so I've gotta string a line across the family room, thru the dining room, down a hallway, and into the living room, kinda sucks.