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#retromac

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A media archaeologist a couple of years back stumbled upon an older Macintosh running a prototype operating system that never saw commercial release: System 7.7 was subsumed by MacOS 8 a few months later. But the early-alpha version of 7.7 still exists, and thank goodness someone with the appropriate skill set found and archived this precious and rare slice of computing history.

I love that the Special menu was renamed "Speedy" but in all other ways, this feels very much like one of the older Mac System 7 setups...with a few interesting internal testing tools and some unexpected hints about who was using the device in the artefacts left behind on the drive image.

I plan to install this on real Mac hardware soon, but it does work great right now using SheepShaver, the emulator.

macintoshgarden.org/apps/macos

Question for my #RetroMac #Mac friends/acquaintances.

Back in the late 80s/early 90s, I can recall playing a game on a monochrome (probably Mac Plus) machine that was a kind of "evil god" game. Though it wasn't much of a game, more like a sim

The gameplay was that you were looking down on a small land filled with tiny stick figure people, and you (playing as a vengeful god) would send down curses to smite the people on the ground. Lightning storms. Floods. Tornadoes. Giant feet stomping on the ground. That sort of thing.

I have been looking for the game but I can't for the life of me remember what it was called. I can definitively say it was *not* the game Black & White, which came out much later and was, actually, a game.

Does anyone have a recollection of this really old freeware/shareware joke of a game?

Anyone around Seattle into old Macs? Not that old but still up there. I cannot remember what it is but family is about to chuck it. #retromac

I’m 90% sure it can dual boot os9 and osx

*EDIT* and it's spoken for, thank you everyone who piped up and shared this around

Continued thread

I have continued futzing around with the #Apple #Macintosh #PowerBook 145B. My weekend project was to remove the ancient, decrepit SCSI hard drive (functional, but loud as heck) and replace it with the #Androda #BlueSCSI, a custom PCB with a Raspberry Pi Pico W attached to it. (The Pi Pico W also gives the PowerBook an internal WiFi connection, something the original never had.)

Fortunately I already have some experience working with .hda disk image files from last year's #PiSCSI project, so I had some ready-made virtual hard disks loaded with software I've barely touched.

Today at @mediaarchaeologylab I found a floppy disk for the 1995 Norton Disk Editor, a low-level diagnostic tool that I can't imagine there was much consumer demand for. The disk editor contains some hidden gems of MacIntosh lore I was previously unaware of.

The UI says "The Disk Type bytes identify the type of Macintosh file system in use on the volume. If the bytes are $D2D7 (or 'RW' - standing for Randy Wigginton) then the volume is an MFS volume. If the Disk Type bytes are $4244 (standing for 'BD' or "Big Disk") then the volume is an HFS volume."

(Edit: I don't know if Apple had its own version of ASCII, but while in traditional ASCII hex 0x4244 = "BD," ASCII hex values for "RW" would be 0x5257, not 0xD2D7, so that's...weird)

Randy was employee number 6 at Apple, and a neighbor of Woz. Turning your initials into magic bytes buried in the filesystem you designed seems just so...early Apple.

The PowerBook is now completely silent when it runs. It doesn't have an internal fan. The hard drive motor was the only thing that made any noise (aside from the speaker, of course).

And the BlueSCSI? With a 128GB MicroSD card, it has about 1600 times as much storage as that old 80MB hard drive.

Continued thread

The recap operation took four hours, mainly because I had never done it before and I was being extremely careful.

It involves using a pliers to grab and delicately twist and wiggle each bad cap until its pins snapped off, then using a lot of flux and a soldering iron to clean off the pads. And alcohol, and q-tips. Lots and lots of q-tips.

Once clean, I put a dab of solder on each trace on the new replacement Tantalum caps, fluxed the pads again, and soldered the new caps to the pads.

It was definitely the most complex repair I've undertaken on a retrocomputer but it was a total success...for the monitor. The display is nice and bright and no longer has a grey halo around the border.

But it didn't change the boot problems. The Mac now boots up with a happy sound and just sits there not showing the Welcome To Macintosh image, or the pointer. Just a freshly brightened blank screen. 😓