It has 128 meg of ROM which is used to store the OS and any files you install or copy to it. Then it has 64meg of RAM which is used to run programs.

When you get it, there's about 60-70meg of ROM free to install stuff but that includes an 8meg video and a couple of MP3s. Remove that stuff and I think you'll have about 80meg to play with.

Does that answer your question?