System 9 or System IX may refer to:
Computing edit
- IBM System z9, the mainframe line
- Plan 9 from Bell Labs, the operating system
- Mac OS 9, latest release of Classic Mac OS operating system
- OS-9, the Unix-like real time operating system
- SYSTEM POWER 9, line of power supplies by be quiet!
Other edit
- STS-9 (Space Transportation System-9), the Space Shuttle mission
See also edit
This disambiguation page lists articles associated with the title System 9.
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