Open source freedom
Anyone can view, modify, and redistribute the source code. That means the community can find security or functional flaws and fix them quickly.
[Linux, explained plainly]
Powerful, secure, and free. Welcome to the world of Linux.
A clear, practical guide to the open source operating system that runs phones, servers, supercomputers, and everything in between.
- 1991Created by Linus Torvalds
- FreeOpen source at its core
- One kernelMany distributions
[01 / Foundations]
What is Linux
A free, open source operating system with one kernel at its core and many distributions built on top.
Linux is a free and open source operating system created from Unix by Linus Torvalds in 1991. Since its debut, millions of devices worldwide have run Linux every day: desktop PCs, smartphones, servers, and supercomputers all depend on it.
The Linux kernel sits at the heart of the system. It manages the computer's central processing unit and its hardware resources efficiently and economically. Thanks to its modularity and configurability, it keeps resource use low while supporting maximum productivity. Linux provides a stable, secure, and customizable platform for running enterprise software.
Linux provides users with numerous distros, or versions, developed and maintained by different groups and communities. Ubuntu, Red Hat, Debian, and CentOS are four widely used versions. They differ in features, applications, and updates, yet all rest on one kernel base: they belong to one species known as Linux.
Open source by design
Linux stands out as an open source operating system: its source code may be seen, modified, and redistributed freely by anyone. That openness makes collaboration simpler for developers, who can combine their efforts to strengthen the system while safeguarding its reliability and safety.
Built for many interfaces
Linux is versatile enough to suit any desktop environment or interface preference. Users may choose between a minimal interface and a robust, highly customizable one, depending on their requirements and personal taste.
Stable under pressure
Linux is an efficient and trustworthy choice because of its dependability and stability. Its modular structure and open development make bugs easier to identify and resolve, so it is safe for both home and commercial use.
Efficient on modest hardware
Linux has earned acclaim for its efficiency and speed, particularly among mobile device and server manufacturers. Its compact size and modest system requirements let it run on a wide range of devices, and its scalability carries it from phones to servers.
An evolving ecosystem
Linux gives its users a reliable, flexible, and powerful environment that is both adaptable and pervasive. That combination keeps its community adding new functionality and improving the experience. It is one of the primary platforms for development and technological innovation worldwide.
[02 / Where it runs]
What Linux is used for
Linux is not one kind of machine. It is the quiet layer beneath servers, classrooms, research labs, games, and the phone in your pocket.
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Servers and enterprise
For server and corporate applications, Linux is often chosen for its reliable, secure, and low cost nature. Web servers, email servers, and database servers all run on it, which is why major sites such as Google, Facebook, and Amazon rely on Linux.
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Desktop computing
Modern Linux offers a rich, intuitive desktop. Distributions such as Ubuntu, Fedora, and Linux Mint package office suites, media players, and productivity tools, so a Linux desktop can handle everyday work.
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Embedded systems and IoT
Linux is the go to platform for embedded systems and IoT devices, including smartphones, routers, smart TVs, and home automation hardware. Its lightweight, adaptable nature suits small devices as well as large ones.
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Education
Schools use Linux to teach open source software and to give students practical experience with operating systems. Students learn how the systems they use every day actually work.
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Research and academia
Linux is a favorite among scientists and academics for simulations, data analysis, and research projects that handle large volumes of data. Its reliability, security, and capacity for heavy workloads make it a natural fit.
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Gaming and entertainment
Steam's growing compatibility with engines such as Unity and Unreal Engine has encouraged developers to build games for Linux. Media players and streaming services are widely available too, which makes Linux a credible entertainment platform.
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Mobile devices
The Linux kernel provides the foundation for several modern mobile operating systems, which offer more personalization, safety, and reliability on portable devices. That foundation leaves room for customization without sacrificing safety.
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Cybersecurity
Linux security features and flexible software make it a strong fit for firewalls, intrusion detection systems, and penetration testing. Teams also use Linux to manage vulnerabilities and meet compliance requirements.
[03 / Why it lasts]
Features and benefits
Linux is easy to customize while remaining secure and reliable, which makes it popular with programmers, companies, and everyday users alike. Built on Unix, it keeps improving through an active community of developers and users. These are the features that set it apart.
Made to fit
Because the source is public, users can adjust Linux to meet their own requirements and even release their own distributions. That freedom suits server administration, gaming, and multimedia editing.
Security by community
Linux has a strong security reputation compared with rival systems such as Windows. Open development lets contributors address vulnerabilities quickly, and attackers tend to focus less on Linux than on more widely used systems.
Stable by structure
The modular design supports easy upgrades and regular maintenance without interrupting other parts of the system. Users see fewer crashes and better overall performance.
Works with others
Open source communities have built compatible drivers and programs, so Linux interoperates with many systems, applications, and file types. That can make a move to Linux simpler for enterprises.
No licensing fees
Linux does not charge licensing or operational fees when you set up a system. For organizations looking for a low cost alternative, that can mean meaningful savings.
A clear file system
Linux uses a hierarchical file system, with files and directories organized in folders. The tree structure makes files easy to find and leaves room to expand or contract.
Simple software management
Built in package management makes installing new versions or removing old programs straightforward. It also helps ensure that necessary patches are applied at the right time.
[04 / Two systems]
Linux vs Windows
Are you questioning the advantage of Linux over Windows? Your choice depends on your own criteria. Each operating system offers advantages and drawbacks.
[Linux]
Linux is widely respected as more secure and dependable than Windows, thanks to its open source nature and a strong community of developers. Users can inspect and customize its code to suit their own requirements, which makes Linux highly flexible.
- Security and dependability
- Open code and deep customization
- No licensing fees
- Stable under heavy use
[Windows]
Windows commands more of the market share and is used by more people, so its software and hardware compatibility has expanded accordingly. That can make it easier for people who are less comfortable with technology, thanks to a friendlier user experience.
- Larger market share
- Broader software and hardware compatibility
- A friendlier fit for less technical users
Whether Linux or Windows is the better fit comes down to individual preference and the needs of the person or organization.
[Keep exploring]
Choose by fit, not by habit.
Both systems are capable. The right answer depends on your criteria, the software you need, and the people who will use the machine.