Getting System 7.5 natively booting on a G4 Mac is impressive enough…

...but what truly blows my mind is that on the same hardware, the author managed to get System 6.0.8 as far as a Happy Mac, and Systems 7.0/7.1 to a "not supported on this computer" dialog.

The fact that the ROM manages to get that far at all, instead of a black screen or sad mac is bonkers, considering that the processor architecture (and the rest of the hardware) is completely different from anything that would be understood by that era of OS. It's relying on the 68k emulator built-in to the ROM.

Driver support notwithstanding, I wonder how low could you go if you took the resources from the CHRP system enabler and brought them over into the System file directly? Since 6.x and early 7.x didn't support enablers.

#RetroComputing #VintageMac #68K #PowerPC #Apple #Mac #MacOS #ClassicMac https://mstdn.social/@osnews/115637701377779352

OSNews (@osnews@mstdn.social)

System 7 natively boots on the Mac Mini G4 Only a few weeks ago, the CHRP variants of Mac OS 7.6 and 8 were discovered and uploaded to the internet for posterity, but we're already seeing the positive results of this event unfold: Mac OS 7.x can now run on the Mac Mini G4 - natively. The very short of it is as follows. First, the CHRP release of Mac OS 8 contains a ROM file that allows Mac O https://www.osnews.com/story/143926/system-7-natively-boots-on-the-mac-mini-g4/ #macOS

Mastodon 🐘
Folklore.org: Calculator Construction Set

The Mac calculator’s original design came from letting Steve Jobs play with menus for 10 minutes

In 1982, a young Mac developer turned Jobs into a UI designer—and accidentally invented a new technique.

Ars Technica

How is it m68k Macs came to have a reputation for superior stability relative to Windows PC's of the era, despite the limits of classic MacOS's memory manager? How much was clever marketing and how much was reality?

#macos #classicmac #windows #sysadmin #retrocomputing #m68k #m68kmac

It occurs to me that so much of what I know about debugging things comes from troubleshooting INIT/extension conflicts in the '90s.

#Macintosh #MacOS #ClassicMac

Super happy to have my SE/30 back after it having been given the @DosFox treatment. Hugely appreciate the effort and so pleased that it should have another 30+ years in it. It is the best all-in-one classic Mac, after all 😍

#ClassicMac #ClassicApple #MacSE30 #SE30 #AppleMac #AppleMacintosh

GlobalTA/UX’ing tonight!

It's been quite a while since I’ve done something silly with an old Mac so I installed A/UX on my IIfx. It's something I've wanted to do for a while (and tried a few times in the past) but never managed to get it to work until now - turns out A/UX is incompatible with the BMOW ROM-inator - after reinstalling my stock IIfx ROM it works like a charm, even supporting my Interware video card and Asante ethernet card.

Software compatibility is a bit spotty when it comes to network apps - iCab and TurboGopher didn't work, but MacLynx and the Wikipedia app do. And of course #GlobalTalk works like a charm!

Also it's crazy that I can telnet into this thing from my daily driver MacBook Pro 🤣

#RetroComputing #VintageMac #68k #Apple #Mac #MacOS #ClassicMac