What is Linux ?
Just like Windows, iOS, and Mac OS, Linux is an operating system. In fact, one of the most popular platforms on the planet, Android, is powered by the Linux operating system. An operating system is software that manages all of the hardware resources associated with your desktop or laptop. To put it simply, the operating system manages the communication between your software and your hardware. Without the operating system (OS), the software wouldn’t function.
- Linux is a free and open-source operating system.
- Created for personal computer, Later on used in Servers, Supercomputers etc. Android is based on the Linux kernel.
- Popular distributions: CentOS, Ubuntu, Fedora, Debian, Linux mint,etc
Why Linux ?
- It support CLI and GUI modes.
- It’s also become the largest open source software project in the world. So any one can study, run, share and modify the software.
- The modified code can also be redistributed and even sold but must be done under same license.
- Linux Runs almost every computing platform available : mobile, tablets, server, desktops, laptops etc.
Linux Features
- Multi user : allows multiple user to login and use the resources at a time
- Multi processing and multi tasking : Allows to perform multiple processes as well as multiple application at same time
- Portability : can be installed on any hardware architecture.
- Reliability : large servers have been successfully being running without a single second of down time. Security : inbuilt fire wall
- Open source & free : Software along with source code and documentation
Architecture of Linux
Hardware : consist of all peripheral devices
(RAM/HDD/CPU) etc.
Kernel – Core component of the OS. Interact directly
with the hardware.
Shell – Interface to kernel. Takes commands from the
user and performs the kernel functions.
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