Do you know what the BBS is?
Sure.
Tell me then.
BBS means Bulletin Board Service.
Oh, I see, but what's it used for?
A lot of things!
Tell me in details.
Okay. BBS, an online service, offers a wide variety of online games, files, one-on-one chat, message areas, private mail, and participate forums.
Oh, that's great. I want to try later.
Why not?