Ok, I'll be up front and say right off the bat "old person who knows nothing about computers." We (wife and I) are replacing our very old desktop. Originial idea was to replace with another desktop, which led to me asking several questions on this site (thanks for the help!). After all that research and questions we went back to square one and decided to go with a laptop. So we are thinking of going with a Dell Ispiron 17 Core i3-330M 2.13GHz Dell Wireless 1520 802.11n My question is : does wireless mean wi-fi? Is wi-fi built into evey laptop these days? Will want to set up a wireless router so we can move it around. I assume that is just an easy plug and go thing. Thanks again for the help.