The Chooser would let you choose your network (e.g. AppleTalk Network) and also to select a printer. The Chooser faded away at the end of the 1990s. In Mac OS X, the Chooser has become extinct, replaced by OS X's integrated networking features in the Finder. As for the printing functions, they are now found in the separate Print Centre (10.2 and earlier) or Printer Setup Utility (10.3 and later) application.