- - Open-source operating system with a penguin mascot
- - bell finally redesigned unix operating system
- - Computer operating system with a penguin mascot
- - Operating system with a penguin logo
- - Operating system with a penguin mascot
- - Open-source operating system
- - Operating system whose logo features a penguin
- - Computer operating system
- - Operating system choice
- - PC operating system
- - Name of an operating system
- - OS represented by a penguin
- - Company with a penguin mascot
- - Open-source OS
- - Willie who made "The Catch" in the 1954 World Series
- - Windows alternative
- - MS-DOS alternative
- - Company with penguin mascot named Tux
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