[en] The method of program compilation from the FORTRAN-1900 language by means of ILC-1900 standard compiler according to special program, monitoring addresses to external devices and ensuring link-up of the compiler with operating and file systems of the ''Odrenok'' microcomputer is described. Changes in the compiler, library ensuring link-up of input/output operators of compiled program with the existing systems, as well as the PIGS graphic pachage adaptation, permitting to use it in programs written in the FORTRAN-1900 language, are considered. In the supplement a description of separation with monitoring program for users is described, the FORTRAN-1900 language and certain peculiarities of inpu/outpit operations related to the change in the corresponding subprograms are briefly outlined