Removing posting information - Joomla! Forum - community, help and support

i new joomla!, plz. dont peeved noob question.
i need remove posting information
e.g.
written administrator   
wednesday, 16 may 2007
test
last updated ( wednesday, 16 may 2007 )

i need remove written by, date , last updated. how do that?
plz. reply.

thanks in advance.
g@k

you can under site -> global configuration -> content
or each content item individually in content editor on right hand side under parameters