To set up a router in one room and a desktop in another, first connect the router to your internet source (like a modem) using an Ethernet cable. Then, use another Ethernet cable to connect the router's LAN port to the desktop in the other room. If running a cable is impractical, consider using a wireless connection by connecting the desktop to the router's Wi-Fi network. Finally, make sure to configure the router's settings through its web interface for optimal performance.
Yes
I want to put my xbox360 in my room to play on xbox live. Right now it is in my living room because my t.v needs the router to be connected. So if i got another router and put it in my room can i connect it to my xbox.
One example is that one of my laptops can wirelessly go on the internet through my router in another room. My desktop computer is wired to the router using an ethernet cable - so is not a wireless connection. It two devices can talk to each other, yet there is not a cable connecting them, then that is an example of a wireless (commonly called wifi) connection.
Yes
the router filter & forward the data segment from one lan to another lan
Depends on what is needed to be connected. if you want connection from a computer to a notebook, you should get a router for WiFi. if connection is from one desktop to another, just buy a Ethernet Hub that should do the job.
For such purposes you need at least two subnetworks. One adapter cannot be in the same time in both of them. Thus you cannot do that. If you connect your PC through wireless to another PC, and that PC is connect to the router with a LAN cable that it's doable.
Router.
One can purchase an EDVO router. There are many places that one could buy an EVDO router from. One place that one could purchase one from is Amazon. Another place that one could purchase an router from is Best Buy.
Buy a router and one short Ethernet cable to run from the router to the nearer computer and one long Ethernet cable to run from the router to the farther computer. If both computers have built-in Wi-Fi (wireless), then buy a $40 Wi-Fi router at BestBuy, Amazon.com, Newegg.com, etc., and then you don't need Ethernet cables.
A router
If you have a wireless router it's very easy to do. But you will need one lan cable to connect the desktop to the router. Just connect the desktop to the router using the cable. Connect wirelessly both laptops to the router. Make sure that DHCP server is on. If it's not on you will have set up ip addresses manually. If you have a switch you will need three lan cables (one per each computer). And you will have to set up all ip addresses wirelessly. Without a switch or a router you can do it to but you still need a lan cable. You have to set up ip addresses manually and use the cable to connect one of laptops with the desktop. PS: If you set up ip addresses manually all of them should be from the same subnet. For instance, first laptop has the ip address 192.168.1.1, second one 192.168.1.2, the desktop's ip address is 192.168.1.3