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Do anyone here have a picture of a *2E71M/MC* mask socketed 68LC040? Look in the logic boards of the last 68LC040 desktop Macs made in late 1995 or later.

Anyway, the key change in 7.6 is that it backports large volume support to older 68040 and PowerPC Macs that do not have it in ROM.

In fact, it is the same as the 5500. You distinguish between the 5500 and the TAM from software by using the 'bxid' Gestalt selector.

Well, it may not be the seller's fault, look at the bidding logs.

Well, you see, the SE/30 and the System 6.0.3 was released January 20, 1989, which is why one set of disks was copyrighted 1988: http://groups.google.com/group/comp.sys.mac/browse_frm/thread/93d14d2a5b4a213a/a0c6dadddc09a2f2

Yea, Gassee was famous for that strategy, and that was part of why he was forced out. After that, the October 1990 round of Macs (which not only include the Classic, but also the LC and IIsi) began development, and these machines was developed in realisation that this strategy was a mistake.

Yea, it would be better if they bought the 2/40 config with both already installed in the first place, but I bet the $999 price was tempting.

Actually 7.1 was the first release where Apple actually began charging for system software. With 7.0 the system software was still free, but the upgrade kits had the manuals too.

Yep, the 64K and 128K ROMs are completely different code and require different ROM patches, and what probably is happening is that System 4.2 have deleted the 64K ROM patches from the System file. Similarly one reason System 7.6 won't run on a Mac older than the IIci is that Apple has again...

I think it ran at the same speed at the SE, which was slightly faster than the Plus, owning to changes in the video and RAM refresh.

Yea, I did say that the Mac Plus "was the last Mac still produced that still use the 800K floppy and the old keyboard/mouse interface dating back to the Mac 128K". In fact, I think that the Mac Plus was the biggest barrier to the death of the 800K GCR floppy for years.

Yea, that entry level config also didn't have any hard drive built-in and was simply to replace the Plus period at a lower price, which I am sure tempted many buyers. Because of the lack of these two things, it was not ready for System 7 out of the box which was released 6 months after the...

And on the original Classic, it was to finally replace the Plus from 1986, which was the last Mac still produced that still use the 800K floppy and the old keyboard/mouse interface dating back to the Mac 128K. While the Mac Classic is indeed less expandable than the SE, it still include many of...

The Universal Headers has a list of the documented ones in Traps.h. You can look in other header files for the prototypes of the calls.

I think they use the same DMG/UDIF format in the OS X versions. But version 6.x on Mac OS 9 used a different IMG/NDIF format.

Actually not directly. You can think of it like this: The Classic II was based on the 68030-based LC II that was designed to fit in a Classic case. The SE/30 was based on the 68030-based IIx (actually more like the IIcx) that was designed to fit in a SE case. The LC II was a 68030-based...

Note however that the $0178 ROMs used in the II, IIx, IIcx, and SE/30 cannot boot into 32-bit addressing mode, as the memory manager in these ROMs is 24-bit only and the memory manager is initialised very early in the boot process. By the time the System file is opened, code like disk drivers...

It is often mentioned in articles that describe how to directly access the VRAM (indeed, such articles are the first hits for "swapmmumode quickdraw" in Google), because in that case the apps have to do the SwapMMUMode themselves, unlike when they use QuickDraw routines like CopyBits where...

Nope, did you know that the original release of System 6 released back in April 1988 was buggy? 6.0.1 fixed a lot of bugs and was originally what was supposed to ship with the IIx (and of course the II FDHD) which required it, but then another bug was discovered at the last-minute that led to 6.0.2.

Luckily, Apple derived a solution to this when it created 32-bit QuickDraw, and it is quite simple. Every time 32-bit QuickDraw access VRAM in the slot space, it uses a trap (SwapMMUMode) to temporarily switch the MMU into 32-bit mode, and when they are done, they use the same trap to switch...