Direct communicatio., Operating System

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Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to
Identify what type of IPC is this?
Write the send and receive primitives for stated processes.
Identify at least three properties of communication channel or link in this scheme

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Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to I

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