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What and Why of Linux?

Linux is a free and open-source operating system, first released in 1991 by Linus Torvalds.

Unlike proprietary operating systems like Windows and macOS, Linux is based on Unix and supports multi-user access and multiprocessing. This means many people can use the system simultaneously without interference, and the OS can handle multiple tasks at the same time.

Why Linux?

• Open-Source : Anyone can modify and distribute their version of the OS.
• Customizable : Its open-source nature allows for extensive customization.
• Widespread Use : Linux powers 90% of the cloud infrastructure, including tech giants like Google and Facebook.
• Security : Its global community contributes to its security, making it less prone to viruses.
• Cost-Efficient : Free to use, with no need for expensive licenses.

Linux Distributions (Distros)

A Linux distribution, or distro, is a version of Linux tailored to specific needs. There are hundreds of distros available, each designed for different uses, from personal computing to enterprise servers.

Popular Distros

• Ubuntu: Known for its user-friendliness, ideal for beginners.
• Fedora: Offers the latest software and is preferred by those who want up-to-date systems.
• Debian: Renowned for its stability and serves as the base for many other distros.
• Red Hat Enterprise Linux (RHEL): Focuses on enterprise use, offering robust stability and support.
• CentOS: A free version of RHEL, popular among professionals for its compatibility.