View Full Version : Macintosh 128K

August 17th, 2006, 08:54 AM
What MacOS versions will run on a 128K? I tried System 6, didn't work, but the disk might be bad.

And yes, I found a Macintosh 128K on a pallet today. It's in very good condition. I had a mouse, just need a stupid RJ11 keyboard!

August 17th, 2006, 10:01 AM
I thought you could run OS6 on it, but there may be memory issues at 128K. It will be slow, but that's true of the machine anyway.

I know I've run OS6 on 512 and 1MB versions.

August 17th, 2006, 10:32 AM
Well, when I insert the disk, I get the Happy Mac for about a second and then it spits it out. Might be an 800K diskette or just bad. I haven't had the opportunity to test it in another Mac yet.

August 17th, 2006, 10:57 AM
Aren't all MacOS versions 7 & below public domain? If so, couldn't you just write new diskettes?

Terry Yager
August 17th, 2006, 11:08 AM
It does sound like a problem with the disk, not the machine. Apple's website should have the info & software ya need. Ya might also try:



August 17th, 2006, 11:20 AM
mac 128ks can only use mac os1 to 2 apparently...

August 17th, 2006, 12:21 PM
That's interesting, do you have a source or do you know this from experience?

August 17th, 2006, 12:42 PM
macmothership.com. Loads of links to boot...er no pun intended...

August 18th, 2006, 01:17 AM
That's interesting, do you have a source or do you know this from experience?
i have lots of mac experience.. yes, and of course i read a lot about macs, ive got the definitive macintosh user guide which says that they can only run os1 to 2:biggrin:

September 16th, 2006, 08:12 PM
I belive mac 128k's have 400kb disks (as opposed to 800k), that might be your problem.

September 23rd, 2006, 08:48 AM
Yep, the Lisa 2, 128k, and 512k all have the single sided, 400k disk drives. The 512k ED and the Plus have double sided, 800k drives.


October 8th, 2006, 12:18 AM
systems for the macintosh, that started it all : (400k disk)

Macintosh Guided tour :
system 0.85, finder 1.0
the guide tour system file was never meant to run anything else than the tour
to get familiair with the new feature of the macintosh - the mouse -
system 0.97 fixed a bug of the tour
the tour alsoo had a Macintosh Guided Tour tape

original Mac OS : system file 1.0, finder 1.0
Maximum Mac OS : system file 3.2, finder 5.3

more :