Operating Systems
Linux
Definition
Linux is a family of open-source Unix-like operating systems based on the Linux kernel. It is typically packaged in a Linux distribution, which includes the kernel and supporting system software and libraries.
Why It Matters
Linux is the dominant operating system on servers, mainframes, and supercomputers. It also powers the Android OS. Its open-source nature, stability, and security make it extremely popular for a wide range of applications.
Contextual Example
Most of the websites you visit are running on web servers powered by a Linux distribution like Ubuntu or CentOS. It is the backbone of the modern internet.
Common Misunderstandings
- Linux itself is just the kernel. A full operating system like "Ubuntu" is a "Linux distribution" that bundles the Linux kernel with other software.
- While dominant in the server world, Linux has a smaller, but passionate, user base on desktop computers.