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#system7

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@kalleboo @me_ What always made me wonder (not having programmed System 6/7 back in the days): There _were_ applications that handled memory allocation dynamically (e.g. some versions of Graphicconverter), and some text editors where I forgot the names, where it was _not_ necessary to adjust the memory allocation for an program in the Finder manually.

This dynamic memory API/functionality capability seemed to be added to System 7 back then. It always occured to me that RAM Doubler was a cure for programs that didn’t use newer APIs but the “old” pre System7 way of allocating memory fixed through settings in the Finder.

But, this is obsevation is deduction and guessing. Would be great to read here from someone with actual knowledge of the memory manager of System 7.

Perhaps @Cdespinosa can help or reach out?

#retrocomputing question: I'm trying to boot my #macintosh #powerbook 170 from #floppy . So i used a #linux machine with #dd to write a known good #system7 disk image onto a known good #floppydisk .
But dd exits reporting an i/o error while writing. Note that I can create working #msdos floppy with the same drive and same floppy. Also tried other floppies, same error and every time at the same place (44kb from the start).
As expected, the mac won't boot, but for a little while I see the happy mac icon, so it seems the first part of the disk is correct.
Is there any mac-specific parameter to pass to dd? Any other hints?

One of the joys of being an old analogue fuddyduddy is re-reading personnel rosters/ credit notes that you won’t readily get when streaming. I already knew Steve Hillage ( #Gong #System7 #MirrorSystem ) had produced a couple of #SimpleMinds albums….what didn’t register until today when whipping out the 1991 System 7 debut and seeing the name-checks….Mick Macneil….on accordion….shoulder to shoulder with a veritable who’s-who of #EDM #Ambient music at the time