quote:Originally posted by _Joy_:
The IP address ... would be different for my home computer and my laptop, right?
Correct, and it gets even better. If you're using a router that uses a program called DHCP to assign computers IP addresses, the IP address of your laptop might one day get reassigned to your desktop or vice versa.
Now a computer can be isolated using it's network card's MAC address. MAC addresses are unique numbers assigned to the specific device that connects a computer to a network, like an Ethernet card or wireless card for laptops. Whether the forum admins could make use of something like that, I'm not sure. I'm giving a presentation on web design and web development education today, so I'll have more time to figure something out tomorrow.