Inter Process Communication in Operating System (OS)

April 30, 2021

Inter Process Communication in OS

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

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.

1. Process Synchronization
2. Critical Section
3. Inter-Process Communication
4. UEFI(Unified Extensible Firmware Interface) and how is it different from BIOS
5. Mutex
6. Semaphore
7. Mutex vs. Semaphore
8. Atomic Operations in OS
9. Peterson’s Algorithm for Mutual Exclusion (Only important for Cisco and Arista Networs)
  Java
  C
  Python
10. Peterson’s Algorithm for Critical Section Problem (Only important for Cisco and Arista Networs)
11. Readers-Writers Problem

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