Doing the teacher hands a project recently, under the Windows 7 and xp, has been listed by C language can host open service, installation of the software and a recent visit to the document, now according to the information to determine the purpose of the host and the usage of the user, but can't find any clue, the teacher's advice is to first roughly points some classes, such as server, which type of server; Host is boundary (like this name, also didn't understand at the time, with double card or something); Is used mainly for leisure (playing games, watching video); Is mainly used to study, but I really didn't think out what ideas thought for a moment to complete these classifications, so want to ask the great spirit, what method does not solve this problem first? Or is there some open source projects can draw lessons from? thank you