Incorporation of Nonstandard Input/Output Devices into FORTRAN Systems A FORTRAN system may readily be modified to handle input/output with nonstandard media on the same basis on which it handles the standard media. This is done by providing a character-handling subroutine suited to the nonstandard medium and arranged to be called by an otherwise unused output statement type or unit number. This method was used to control output of alphanumeric information on a digital graph plotter. CACM May, 1966 Cohn, C. E. CA660505 JB March 3, 1978 10:01 AM 1432 5 1432 1432 5 1432 1432 5 1432