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Interprocess Communication

Interprocess communication(IPC) are required since processes are seperated different virtual address space. There are multiple IPC mechanism in modern Unix systems:

• Pipe.
• FIFO or named pipe.
• Message Queue.
• Signal.
• Semaphore.
• Shared Memory.
• Socket. Socket interface can be used to both local machine IPC and network IPC. Socket interface is a general-purpose interface which provides multiple transportation-level protocols support.