System 2.0 Finder 4.1:
System Disk
Backup Disk (MacWrite 4.5, MacPaint 1.5)
System 3.2 Finder 5.3:
System Installation (single-sided update disk)
Printer Installation (single-sided update disk)
System Tools (double-sided, with Installer and scripts for the Macintosh Plus and 512Ke)
System 4.1 Finder 5.5:
System Tools (double-sided, with Installer and scripts for the Macintosh Plus, 512Ke, SE, and II)
Utilities (Disk 1)
Utilities (Disk 2)
More info:
Macintosh system software history.- Updated!
Using older disk images.- Updated!
Apple Downloads
Disk Copy
Disk Copy is available at the Apple Support Area:
Disk Copy 4.2 (Read Me)
Disk Copy 6.3.3 (Requires System 7.0.1 or later)
System 6.0.x
For information about hardware compatibility with System 6.0.x, see Apple Knowledge Base article 18046.
System 6.0.x software is available at the Apple Support Area:
Macintosh System Software 6.0.3 (Read Me)
Macintosh System Software 6.0.5 (Read Me)
Macintosh System Software 6.0.8 (Read Me)
TrueType 1.0 (Read Me)
System 7.0.x
For information about hardware compatibility with System 7.0.x, see Apple Knowledge Base article 18046.
System 7.0.x software is available at the Apple Support Area:
Macintosh System Software 7.0 (800K disk images)
Macintosh System Software 7.0.1 (1440K disk images)
System 7 Tune-up (Read Me)
System 7.1
For information about hardware compatibility with System 7.1, see Apple Knowledge Base article 8970.
System 7.1 software is not available as a free download. Updates for System 7.1 are available at the Apple Support Area:
System Update 3.0 (800K disk images)
System Update 3.0 (1440K disk images)
System 7.5.x
For information about hardware compatibility with System 7.5.x, see Apple Knowledge Base article 8970.
System 7.5.x software is available at the Apple Support Area (1440K disk images):
Macintosh System 7.5.3 Revision 2 (Read Me) [2 images]
System 7.5 Update 2.0 (Read Me) [14 images]
Macintosh System Software 7.5.3 (Read Me) [19 images]
System 7.5.5 Update (Read Me) [3 images]
System Enablers
For information about hardware compatibility with system enablers for System 7.1 to 7.5.2, see Apple Knowledge Base article 8970.
System enablers are available at the Apple Support Area.