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These are the methods in IPC:
Pipes (Same Process) – This allows flow of data in one direction only.
Names Pipes (Different Processes) – This is a pipe with a specific name it can be used in processes that don't have a shared common process origin. ...
Message Queuing –
Semaphores –
Shared memory –
Sockets –
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Shared memory
Shared memory is the fastest form of interprocess communication. The main advantage of shared memory is that the copying of message data is eliminated. The usual mechanism for synchronizing shared memory access is semaphores.