Inter Process Communication in Operating System (OS)

January 20, 2023

Inter Process Communication in OS

On this page we will learn about inter process communication in OS . There are two types of process – Independent processes and cooperating processes . Let’s just directly jump – in.

There are 2 types of process –

- Independent Processes – Processes that do not share data with other processes.
- Cooperating Processes – Processes that shares data with other processes.

The cooperating process requires Interprocess communication (IPC) mechanism.

Inter-Process Communication is the mechanism by which cooperating process share data and information.

The mechanism that will allow them to exchange data and information are the following:–

- Shared memory
- Message Passing

Priority Scheduling

CPU Scheduling

FCFS Scheduling

Preemptive Scheduling

Types

Let’s look at few of the important points of each .

Shared Memory

A particular region of memory is shared between cooperating process.
Cooperating process can exchange information by reading and writing data to this shared region.
It’s faster than Memory Parsing, as Kernel is required only once, that is, setting up a shared memory . After That, kernel assistance is not required.

Message Parsing

Communication takes place by exchanging messages directly between cooperating process.
Easy to implement
Useful for small amount of data.
Implemented using System Calls, so takes more time than Shared Memory.

NOTE: There is too much and extra information given on various websites, that is not necessary. What we have given is more than necessary for Inter Process Communication.

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