Operating Systems
Unix
Definition
Unix is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center. It is characterized by a philosophy of "small, sharp tools" that can be piped together.
Why It Matters
Unix has been one of the most influential operating systems in history. Its design principles, hierarchical file system, command-line interface, and concepts like pipes have shaped nearly all modern operating systems, including Linux, macOS, Android, and iOS.
Contextual Example
The command-line tools and file system structure of macOS and Linux are direct descendants of the original Unix system.
Common Misunderstandings
- Linux is not Unix, but it is a "Unix-like" operating system that was designed to be compatible with it.
- macOS is a certified Unix operating system.