User Interface Features

• Simple, direct access to operating system functions such as file and device I/O through the VOS command language
• Display form function that gives users a form for every command by displaying command arguments and a range of allowed values
• A command macro facility that offers a command programming capability for creating time-saving tools for system and application tasks
• International Character Set Support (ICSS) for European and Asian language and date formats
• Online help facility
• National Computer Security Center (NCSC) C2-type security
• StrataDOC: VOS documentation and manuals on a convenient CD-ROM

Advanced Development Tools

• POSIX.1 compliance
• Programmability in high-level languages such as C++, C, COBOL, FORTRAN, Pascal, and PL/I
• Powerful symbolic debugger
• Protected and simplified data management through the Transaction Protection Facility (TPF)
• CORBA compliance

Communications Protocols

• TCP/IP
• X.25
• SNA
• SDLC/QLLC
• Async
• Bisync
• LAPB
• Poll/Select
• RJE/HASP
• ALC/SLC
• Visa, S.W.I.F.T., NASDAQ, FAS, CHIPS, AMEX
• MQ Series

Hardware Interfaces

• Ethernet (IEEE 802.3)
• Token Ring (IEEE 802.5)
• RS-232
• RS-422
• RS-423
• V.35
• Multiplexed Host Interface