Development of real-time operating system for “SVK” computing system (1977). Development of real-time operating system for “Sevan” multiprocessor hardware platform (1986). Compatibility of EC1030/1045/1046 with IBM 360 /370. Yerevan developed the support software to run IBM and PDP 11 operating systems, Assembler, Fortran and Cobol applications. eXtendiaIT has benefited from this legacy,