How does the PlayStation work?

I am not sure of what you are asking. But the PSP has firmware (the stuff that makes the PSP have access to the internet, play videos, etc.). The discs to the PSP are called UMD discs. Pop those into the back and you can play movies and games that are on that disc. The Internet Browser is basic, but what do you expect? It is a gaming "console". Hope this clarifies things for you.