If you have high speed you don't have a connection like dial-up. Which i have. With high speep your online all the time. A router, i think, is something that sends computer signals. Dunno the details about it thought. You can just check in your programs to see if you have spyware programs. You can tell if its wireless if it doesn't use a phone line i think. I don't know a lot about high speed becasue i dont' have it.