System Software (0-6) System 5.x

In 1984 Apple Computers unveiled their Macintosh computer. It included a new user interface that revolutionized the way people though about computer interaction. Originally referred to as simply "Macintosh System", the underlying OS was a single-tasking disk system for the Motorola 68K CPU. Significant changes were made in MacOS 7.x.

Emulation note: For MacOS 0.x-6.x we recommend the vMac Mini emulator.

It is possible to write Macintosh 400k/800k images to a real disk using a Kryoflux.

Note: Wikipedia's/Apple's Developer CD Classic Mac OS "System Software" numbering scheme is GARBAGE and should NOT be used.

System 4.2, Finder 6.0 (System Software 5.0) Starting with this release, Apple attempts to unify all pieces of the software product under one version numbering system. Version "5.0" is predominatly printed on the boxes and the disks. Yet for some reason Apple did not bump the System file version number - which is now shown in the About Finder dialog! Adds more color support, adds multitasking and application switching via MultiFinder.

System 4.3, Finder 6.0 (System Software 5.1) - minor update.

Product type
OS
Vendor
Apple
Release date
1987
Minimum CPU
m68k
User interface
GUI
Platform
MacOS

Downloads

Download Name Version Language CPU File type File size
Apple Mac OS (System 4.2 Finder 6.0) (System Software 5.0) (Oct 1987) (3.5-800k) 5.0 English m68k 3½ Floppy 1.08MB
Apple Mac OS (System 4.2 Finder 6.0) (System Software X-5.0) (Dec 1987) [Australian] (3.5-800k) 5.0 Australian m68k 3½ Floppy 585.41KB
Apple Mac OS (System 4.3 Finder 6.0) (System Software 5.1) (Nov 1987) (3.5-800k) 5.1 English m68k 3½ Floppy 585.74KB
Apple Mac OS (System 4.3 Finder 6.0) (System Software 5.1) (Nov 1987) [French] (3.5-800k) 5.1 French m68k 3½ Floppy 573.37KB
Apple Mac OS (System 4.3 Finder 6.0) (System Software D-5.1) (Feb 1988) [German] (3.5-800k) 5.1 German m68k 3½ Floppy 407.72KB
Apple Mac OS (System 4.3 Finder 6.0) (System Software FN-5.0) (Dec 1987) [Flemish] (3.5-800k) 5.1 Flemish m68k 3½ Floppy 578.99KB
Apple Mac OS (System 4.3 Finder 6.0) (System Software SK-5.0) (Feb 1988) [Icelandic] (3.5-800k) 5.1 Icelandic m68k 3½ Floppy 523.22KB

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