POSIX Standard

• Outlines a series of standards that govern various core operating system components and interfaces
• Standardised using UNIX as a starting point
• Systems that are POSIX-Compliant can (with relatively little modification) run programs designed for a different POSIX-Compliant system
  • E.g. BSD and Linux
• Windows NT-based systems are POSIX-Compliant

Key Areas

• Creating and managing Processes
• IPC
• Sending Process Signals
• File Operations
• I/O Operations
• The C Standard Library