1. If it is a hotel restaurant management system, you need a server, and then it is the bar of the PC, out of the single machine, as well as the kitchen out of the single machine, which should be made into a local area network (LAN), and is strictly prohibited and connected to the extranet. Management system software is much to go, like the United States Ping, Xi'an, full of red this I have used, the overall feeling can be and so on. 2. If it is a hotel room, you also need one or more ordinary PC as a cashier and the hotel's management to form a local area network (LAN) to facilitate the leadership of the checking account and view the room occupancy. Room cashier software as above; if it is to provide guest room Internet service, this and the formation of an Internet cafe is the same, one or two servers, a game used to do a used to do a movie if the hotel is not very large, then a server configuration of the high point is also OK 3. Room Internet service LAN and cashier system network must be separated, so as not to cause irreversible consequences. 4. computer system, not to mention it, XP .... WIN7 is very good but not yet popularized. A lot of other but you have to consider the public taste ah!