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About OAR

On-Line Applications Research (OAR) Corporation was founded in 1978 to research, develop, and implement practical solutions to computer science and engineering problems in commercial and military marketplaces. Our emphasis is in the following application areas:

  • Real-time systems
  • Embedded systems
  • Software Architectures
  • Object Oriented Design
  • Fire Control Software
  • Weapon Systems
  • Open Source
  • Operating Systems
  • Interoperability & Integration
  • System Architectures
  • MBSE
  • Verification & Validation
  • Open Standards
  • System of Systems Engineering

Also, OAR is the developer of a real-time operating system (RTOS) called RTEMS, which stands for Real-Time Executive for Multiprocessor Systems. We provide a unique set of services for RTEMS including support, training, and custom development. RTEMS is available free of charge with full source code provided. No royalties are required for applications that use RTEMS.