Mac System Software 6.0.4

Mac System Software 6.0.4 is a version of Mac System Software 6.x which was released in September 1989. It introduces a new Installer application window which was used to insert disks while installing. This is the first version of macOS to support Macintosh Portable and Macintosh IIcx. It introduces a new desk accessory called Battery and a new Control Panel section called Portable.

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Macss60bs.png|Boot screen Macss60trash.png|Trash