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Mac System 4.x

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[www].se [ftp].se [mirror].us [mirror].de
System_4.x.sit (3.07 MB)
MD5: f02dbcd0046efd05a43f0e8e778999dc
Emulation
This app works with: Mini vMac

System 4 was a minor upgrade from System 3 in terms of features. Essentially, it was the same feature set, but with support for the new Mac II, and its 68020 processor. AppleShare is finally fully realized with an addition to the Control Panel. System 4.1 was released just a month after the initial version of System 4.

Mac system software, from the very beginning, suffered version confusion. There were different version numbers for the System file, the Finder and even a mysterious "System Software Release" version that took more than two years to get to 1.0.

A fairly linear measure is to use the version of the System file, as long as you ignore the mess at System 2.0. That is, until you get to System 4.2 and 4.3. These two systems have "System Software Release" versions of 5.0 and 5.1 respectively, and are sometimes referred to as System 5.0 and System 5.1.

In this archive, those two releases are referred to by their 4.x numbers.

Archive includes:
System 4.0 (1 x 400K disk image)
System 4.1 (3 x 800K disk images: System Tools, Utilities 1, Utilities 2)
System 4.2 (4 x 800K disk images: System Tools 1, System Tools 2, Utilities 1, Utilities 2)
System 4.3 (2 x 800K disk images: System Tools 1, System Tools 2)

Compatibility
Architecture: 68k

Comments

MacTouch's picture
by MacTouch - 2017, November 21 - 12:33pm

Hi there,

I have the German System 4.0 (boot) & a complete French System 4.3 (4 x 800K disk images). Should I upload them here ? I have also Systems 0.85 & 0.97 if interested. Could I create a page for these ones ? The links on the bottom of this page seems to be deads, so, they should be removed.

MikeTomTom's picture
by MikeTomTom - 2014, December 5 - 12:09am

  I'm particularly looking for Arabic System 4.0.

The best I can do is Arabic System Software 6.0.1, if its of any use to you.

The description of System Software on this page is inaccurate. This page should be re-done. - While there were version 4.x System Files - There were no System Software 4.x version releases.

If you need an Arabic System 4.0, then you may have some luck searching for an "Arabic System Software 2.0" release.

Macintosh System Software version releases jumped from 2 to 5, missing out 3 & 4.

System Software 2.0 contained System file version 4.0
System Software 2.0.1 contained System file version 4.1
System Software 5.0 contained System file version 4.2
System Software 5.1 contained System file version 4.3

Not until System Software 6.0, did SSW version releases including the System File and Finder versions coincide.

techana's picture
by techana - 2014, December 1 - 6:04pm

Links for the international versions on mediafire.com are broken. Could you please update them? I'm particularly looking for Arabic System 4.0.

Thank you.

MikeTomTom's picture
by MikeTomTom - 2014, August 15 - 1:33am

nevertheless the images in the folders are suspect.

Thanks mrdav, I hadn't looked too closely at the archive, spotting the two broken images was enough...

Not finding a 4.x source may have something to do with Apple's weird System naming schemes back in the day. Kind of alluded to in the description field above "...are sometimes referred to as System 5.0 and System 5.1.", I have seen Apple archives that went 2 then 5 but no version 3 or 4 to be seen.

According to this Wikipedia page, System 4.1 (file) is included in "System Software Release 2.0.1" and System 4.2 (file) is included in "System Software Release 5.0" - and both were released in the same year (1987).

I'll take a look at what I have squirreled away, anyway.

mrdav's picture
by mrdav - 2014, August 14 - 1:52pm

@MikeTomTom: I have had a look at the images. All the images mount OK in Mini vmac but nevertheless the images in the folders are suspect.(The two free standing images in the archive are OK). Not only are the two images with the broken Stuffit icon a worry, but these and all the other images in the two folders show checksum errors with both Disk Copy 4.2 and DiskDup. I can get good copies of the three images for System 4.1 but I cannot find a source for the four images for System 4.2. I believe this is because Apple required sites that provided pre-System 6 systems for download to remove those files. (Only heaven knows why). If you can find good images of the four System 4.2 discs then we can recreate a good archive here between us.

MikeTomTom's picture
by MikeTomTom - 2014, August 14 - 10:28am

@mrdav: Could you test your archive you upped? There are 2 broken disk images in the 4.1 folder, yet the archive itself appears to be OK.

I suspect the archive was not tested by the original uploader.

MikeTomTom's picture
by MikeTomTom - 2014, August 13 - 11:23pm

Thanks mrdav, I might be able to locate some of the international versions...

mrdav's picture
by mrdav - 2014, August 13 - 11:14am

I have re-uploaded the file on the internal server. Unfortunately, I never took copies of the international versions.

MikeTomTom's picture
by MikeTomTom - 2014, August 13 - 2:33am

It appears that the internal link and all external links on this page are currently broken.

Re-upload please if you had DL'd from this page previously.

GeeYouEye's picture
by GeeYouEye - 2009, August 18 - 8:13pm

I too am absolutely astounded to find that out.

grawlix.computing's picture
by grawlix.computing - 2009, August 17 - 11:21pm

That's astounding. Thanks for learnin' me my new fact of the day.

Daxeria's picture
by Daxeria - 2009, August 17 - 11:10pm

You really could boot the Classic into a specially prepared 6.0.3 by holding down Command-Option-X-O. However, since it was a barebones copy of an outdated system on a locked volume, even those who knew about it were unlikely to use it on a daily basis.

grawlix.computing's picture
by grawlix.computing - 2009, August 17 - 9:45pm

I guessing that Flight Trainer is saying that System 4.0 came with the Macintosh SE, in spite of the actual words he or she has used.

I don't know of any Mac that had an onboard OS, including the Mac Classic. My roommate had one of those, and you definitely had to have a system disk to boot it up. EveryMac.com indicates, although they may be wrong, that 6.0.7 is the minimum supported system for the Mac Classic.

Daxeria's picture
by Daxeria - 2009, August 17 - 9:36pm

As far as I know, the only model ever to have a built-in OS was the Mac Classic, with System 6.0.3.

Flight Trainer's picture
by Flight Trainer - 2009, August 17 - 7:15pm

System 4 was included in the ROM of the Macintosh SE in 1986.