I have wireless router and two computers. One of them has wireless network card, the other doesnt. What I want to know is if I connect these computers to the router (because my router has place for weird connection, too) will I be able to share files on these computers and internet connection.
Of course that you will be able. Only you have to do is connect your computers to router and set parameters on router. After that you can easily share files, devices and internet connection. If you want to share some files or devices you wont need some special steps to share them do what you usually do when you share something. Procedure is the same.