I use IRC; it is good. I also use NNTP is also good. There are other protocols can be good too. They can be good for different purposes. There is also I can st

I use IRC; it is good. I also use NNTP is also good. There are other protocols can be good too. They can be good for different purposes. There is also I can store all of the files on my own computer. I don't need to store them elsewhere, except to make backups. I use DVDs for local private backups. For public files, I also store them on DVDs, but also on other internet services (such as chiselapp), too. There are many computer games that don't need internet connection. Some of them, but not all of them, are designed for older computer systems such as NES/Famicom, which can be emulated on many computers, so it doesn't matter what operating system you are on, it will likely work. Better documentation is helpful. Describe the program, the protocols, file formats, etc. This is how to learn working with computer. Other programs doing same kind of things can differ in many more ways other than only the branding though; some have different features, source code availability, etc.