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Mac System Software 3.x
| Version of Mac System Software | |
 | |
 | |
| Version | 3.x |
|---|---|
| Architecture | 68k |
| Release date | 1986-01 |
| Support end | 1987-01-01 |
Mac System Software 3.0 is a version of the Mac System Software released by Apple in January 1986. The Hierarchical File System is fully implemented, allowing the use of directories and hard drives on the system.
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