Peek, Poke, Get and Put are implemented in QBasic. See the really big help-file which is included in QBasic for further info.
Graphic commands are very limited.
But using some libraries you can find on the net, you can do a lot more. The commands you named are unknown to me. There's just PSET, Circle, Line and things like that. Peek, Poke, Get and Put are implemented in QBasic. See the really big help-file which is included in QBasic for further info.