What is Linux?
When you drive a car, you can accelerate, you can change the gear or even turn on the AC. But can any of these functionalities work if you do not turn on the engine?
Similarly, you can not use your favourite browser or play a game in your computer system until and unless something called the Operating System is not running.
Linux is a type of Operating System.
Unlike Windows, Linux is free, open-source and considered to be more secure.
Linux is derived from Unix. It is one of the most well-known derivatives of Unix.
What is Linux made of?
Linux has 3 major components.
a) Kernel : It is the heart of Linux OS. The main responsibility of Kernel is to establish communication between hardware and software. For example, whenever a user is trying to install an application, Kernel takes the responsibility to cascade the user request to hardware.
Kernel is also responsible for device management, memory management, process management and handling system related calls.
b) System User Space : To tell you in simple terms, when a user tries to perform a task, it originates in the system user space (we also call it system libraries) and moves to the kernel.
c) Applications : Applications are the programs which usually operate on top of the shell. Some of the applications also interface directly with the kernel. The user has direct interaction with applications.
Tomorrow, I will talk about some basic Linux commands.
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_ Thank you for reading!
_Sudipa