I live in a hostel, where many of us have computers. How can we connect these computers together as a network so that we can play multiplayer games, send files over the network, etc? Do we need a central server for that stuff, or are our pcs enough for the purpose? Please tell me what all hardwares are required for the purpose of connecting them up. and what the cost of connecting them will be. There are about 5 to 6 comps in one block. Please help!!!