Bell Labs invention

• Programmer's language
• OS that uses emacs, sudo and chmod commands
• Operating system that doesn't do Windows?
• Widely used computer operating system
• Operating system since the 1970s
• OS X basis
• Operating system from Bell Labs
• Linux alternative
• Widely used operating system

Wikipedia Word definitions in Wikipedia
Unix (; trademarked as UNIX ) is a family of multitasking , multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center by Ken Thompson , Dennis Ritchie , and others. Initially intended ...