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What is all this "in the first ROM slot" talk? The four chips on the C2 motherboard are each 8 bits wide, and the CPU reads 32 bits at a time. The four chips collectively act as one wider blob of memory in the system. Put another way, under 24-bit addressing (…for example, and simply because I...

Um. That first tape measure reads 8-11/16", not 8-3/16". 221 mm is right, though.

I vaguely recall there having been an FKEY or the like that switched screen resolutions, but even if I am remembering correctly that it even existed, I never actually used it. My family’s earliest Mac, purchased in 1993, was set to 256 colours nearly all the time because none of us ever did much...

I think my favourite one is the T1 warranty guaranteer (I think they label it a V.35 killer or some such). “They claim it’s not their equipment at fault? Not after this.”

Unless you use a third-party virtual memory utility, the required disk space is the same size as the total amount of virtual memory to be made available. The System 7 built-in virtual memory controller can’t work with smaller files.

Wasn't NT4 one of the few Windowses that could support the optional "services for Mac OS" built-in AppleShare implementation? I know the last released version of that came with Win2k3 Server, but I'm also certain it existed prior to that release.

You are of course 100% correct. Don’t know what I was thinking to overlook something so fundamental to our hobby! :o)

It would indeed be a nifty hack, as far as that goes, but I cannot envision any circumstance where an actual user of the machine would WANT to use the lower resolution. Those machines use main memory for video, not some limiting block of separate VRAM, correct? So in theory they should be just...

Relax, the File Sharing requirement was not mentioned in earlier posts—you didn’t miss that part.

Ethernet ports? What? If both machines have Ethernet, use that, don’t faff around with LocalTalk. Even crufty old 10-megabit Ethernet runs at around 4x the inherent speed of LocalTalk. If you do need to use serial-port networking… As has been stated here repeatedly, the correct flavour of 8-pin...

The original WindowShade control panel had a feature where, when activated, your windows were reduced to a short title bar in the corner of the screen. Different modifier keys would do this for the current window, all windows in the current app, or all windows period. This was a very useful...

There's also a sample-code system extension from Apple developer support, circa 1990, that does exactly what you describe, and in the prescribed correct way. It was called ShowInitIcon. It was revised a couple of times over the years; when you're rooting around in it, make sure you have the...

Wait… what system version are you using? I am 90% sure that at some point in the System 7 days, write support for MFS was removed. That might be the missing file that -43 error is in reference to, for all I know.

I, wow, that's worse than I thought it would be. I suspect you have more than one failure going on at the same time there. Swapping major system elements like hard drives and the like tends to make stuff that was just-barely-sorta working, i.e. marginal, reveal itself for the kludgy mess that it...

Wow, sounds like the SE/30 has even more in common with a IIx than we thought! Makes sense though. As I recall, the nomenclature of the day (suffix the model name with an x if the design features the snazzy new 68030) would have had it called the SEx if that didn’t spell what it does...

I will be interested to see if that works. I know 400KiB Lisa disks used 536-byte sectors, with 24 invisible “tag” bytes used by the OS per sector, and that versions of Disk Copy after 4.2 silently discard that extra information, but I have no idea whether MFS (the original flat Macintosh File...

Hmm, reading that last post makes me wonder if your power supply is becoming marginal with age. Those old 40 meg drives suck huge amounts of power whenever they do, well, pretty much anything involving mechanical action, whereas a modern device like a SCSI2SD, with its more efficient electronics...

Well, it was pointed out to me in a thread about something else on the Mac68k forums and I have no idea how complete it is, but the link is http://www.toddp.com/classic/Software%20Install/Apple%20Source%20Code/System%207.1%20Source/ .

I, like many nuts-n-bolts computer/retrocomputer hobbyists, have a long list of projects I occasionally devote brain space to. Some of them are conceivably attainable; many more would theoretically be possible, but only if there were a few hundred of me and an unlimited budget. Among the latter...

What he said. It’s pretty much a no-brainer. You WILL need to recap it at some point, most likely quite soon, and better to do so while it is still intact. I did this proactive maintenance for my Quadra 840av, and was astonished to find that several caps actually HAD leaked, damaging the pads...