Your hughs modem only has 1 output....so if your only hooking up 1 computer then that is a true statement...
However if you are planning to use 2 or more computers...then each computer must have a wireless adapter plugged into it and then they need diffrent addresses to talk to the router.
I have 4 computers hooked to my 6000....3 are in the same room and run through a switch....and 1 is upstairs and runs through a wireless router....my 12 yr old hooked that one up..so it can't be too tough...lol
The router you buy will have simple instructions with it...but usually only comes with a single adapter for 1 computer...so you'll either need another adapter ..or a switch and cable...
