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Input/Output


     I/O Commands are provided to allow the program to access all
     I/O features of the device.  The supported inputs are:

             . Wand/Laser Scanner Decode

             . Two Communications Ports (Modem & Terminal)

             . Real Time Clock

             . Keyboard

     The supported outputs are:

             . Display

             . Beeper

             . Two Communications Ports

             . A Status Port (LED's)

     Most I/O commands work through a string register (default
     $0). I/O commands in a specific bar code reader are limited
     to those supported by the hardware.