I/O Mode Selection                 {$B+}                             pp 314

 Default:   Active

 Scope:     Global

 Active:    {$B+}  CON: device is assigned to the standard files:
                   INPUT and OUTPUT.

 Inactive:  {$B-}  TRM: device is assigned to these files.
                   I/O is not buffered.


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 Notes:     This directive must be placed before the declarations.
            It cannot be redefined during program execution.

            When active, a Read without a file variable will default to
            the console Input file.