fullscreen
FULLSCREEN
FS
rearranges the size and position of windows to maximize the space
available in the graphics window. The details differ among machines.
Compare SPLITSCREEN and TEXTSCREEN.
Since there must be a text window to allow printing (including the
printing of the Logo prompt), Logo automatically switches from
fullscreen to splitscreen whenever anything is printed.
In the DOS version, switching from fullscreen to splitscreen loses the
part of the picture that's hidden by the text window. [This design
decision follows from the scarcity of memory, so that the extra memory
to remember an invisible part of a drawing seems too expensive.]