Tandy 1000 Basic Reference Manual page 348

ChaBter
10 I
BASIC Kevwords
The coordinates can be pictured for commands that use world
coordinates:
If you give the command:
W I N D O W S C R E E N ( 1 9 8 4 , 1 0 0 0 0 0 ) - ( 1 9 8 7 , 3 0 0 0 0 0 )
the coordinates can be pictured as follows for commands that use
world coordinates:
Note: RUN, SCREEN and WINDOW statements,
without parameters, define the entire screen as the
window.
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