15.64.18  DEVICE 

This  selects the unified graphics device and sets options back to default
values.  This is equivalent to starting a new plot on another device.
SET DEVICE [name] ["option_string"]
     [SIDEWAYS|ROTATED|ORIENTATION=n]
     [LANDSCAPE|PORTRAIT]
     [COlOR[=ON|OFF]
     [FILE|OUTPUT|DDNAME=filename|CHANNEL=dev:]
     [INTERACTIVE|SEQUENTIAL|SLAVE]
     [ADD|UNIT=n]
     [IDENT=aaaa] [NUMBER=nnnn] [PERMANENT] [WIDTH=n] [HEIGHT=n] [REVERSE]
This selects the device name.  It is modified by  the  option_string.   If
omitted the default is used.  See:PERMANENT.

(Interactive Default:TEK)

(Batch Default:PS)