skos:altLabel | - Classic
- system
- 2.1
- 3.2
- Mac
- 3.3
- 3.0
- System 3
- 4.3
- 4.1
- System
- 1.1
- 4.0
- Macintosh
- 2.0
- 1.0
- Apple Macintosh
- Mac OS
- MacOS
- Macintosh system software
- Macintosh operating system
- \"Classic\" Mac OS
- Macintosh System Software
- 4.2
- 3.4
- Apple Macintosh operating system
- Apple's classic Mac OS
- Classic Mac OS#System 1, 2, 3, and 4
- Classic Mac OS#System 2
- Classic Mac OS#System 2.1
- Classic Mac OS#System 3
- Classic Mac OS#System 4
- Classic Mac OS#System 4.1
- Classic Mac OS#System Software 5
- Classic Macintosh OS
- Classic Macintosh Operating System
- Classic<br />Mac OS
- Classic<br>Mac OS
- Classic_Mac_OS
- Mac (Classic)
- Mac OS 7.6
- Mac OS 9
- Mac operating system
- MacOS Classic
- Macintosh GUI
- Macintosh Operating System
- Macintosh System
- Macintosh systems
- PCE.js
- System 1, 2, 3, 4, 5
- System 1, 2, 3, and 4
- System 2.1
- System 3.0
- System 3.2
- System 4
- System 4.0
- System 4.1
- System 5
- System Software 2, 3, and 4
- System Software 5
- \"classic\" Mac OS
- \"classic\" Mac OS
- \"classic\" Macintosh operating system
- classic Mac OS
- classic Mac Operating System
- classic Macintosh operating systems
- classic Mac OS
- earlier versions of the Mac operating system
- early versions of the basic system software
- original Mac OS
- previous Macintosh operating systems
- the Mac OS
- the operating system
- “classic” Mac
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