Did a modem installed in the slot on the G3's personality card actually disable the serial port? I had been under the impression that that did not happen on Comm Slot II designs, such as the 6500 and the Beige G3. I can't find anything online saying that it happens, as you can for the 6200 & Co.
This should really probably go on my blog or tumblr, but:
Regarding costs: Apple had made the decision to build multimedia onto the personality card, so that's kind of a sunk cost in designing and building the machine. It's a bit of a shame they didn't do more with it, and it would have been a great extension to the strategy of perhaps building out a 7700/8700/9700 either as dual 604ev and G3 capable systems or a third round of 604 systems with faster chips (it's said all over that the 604ev could have gone a few hundred mhz faster and was still faster than the G3 at certain tasks) and then a 7800/8800/9800 as G3-based systems.
It's probably worth noting that the Beige G3 started for less than what its predecessors cost, for better configurations, and for (usually) a much faster system. Prices on Beige G3s fell quickly and by the time the iMac G3 was released, a G3/266 desktop in 32/4 config was around $1299, a thousand dollars less than what a 7300/180 sold for in 1997. (For fairness: That is after the /300 launched and some prices were re-shuffled. The Beige G3 233/32/4 launched at $2399, itself down from the 7300/200's $2,699. So, it's sort of difficult to believe that the personality card design contributed more than a few pennies to the bill-of-materials cost of the whole machine, once the solution was engineered, probably by putting sound on the PCI bus and then moving it onto the card.
If you still build three different physical designs like that, (regardless of what you name them) then the personality card can make the need to differentiate between the 7300, 7600, 8600, and 9600 for a/v functionality less relevant. Especially if you, say, have a 9600 and want to load it with cards, but not for an Avid setup, but you still want to pull in the occasional VHS tape for a cd-rom video or use video conferencing for collaboration.
I think the theory of the personality card, short lived as it is because the need for analog a/v basically died with the coming of firewire, is that any machine in your professional stack should be eligible for a/v, and perhaps that it should be an installable upgrade.
I think there are a lot of possible reasons sound came with to the card, but ultimately I think it's wrong to suggest
Regarding the Power Macintosh G3 QuarkXPress Edition: It was released on the eve of Mac OS X 10.3. OS X was ready by then and many of the other publishers had already published OS X versions of their software, or patches that made their apps work better in Classic mode. I don't thik Quark was the only vendor that had this problem, but it was certainly one of the highest profile ones. The market quickly shifted to inDesign, which had been ported to OS X at a reasonable time.
Upon the release of 10.0 (March 2001), it would have been unwise to release a machine that could only boot OS X. By late 2002 it's not unreasonable to presume the market should have been ready. -- and this was when OS X releases each lasted 2-3 or more years -- I think it's reasonable to presume the market should have been ready. Certainly by 2003 when the G5 and the XPress G4 were released it should have been.
But, Quark had been doing this stuff for years. They were experts at releasing a new version and then sitting on it for years at a time, with longer intervals between major releases than almost anyone else in the software industry. The only software I can think of that lasted longer is big commercial UNIX releases that come with $100,000 high-performance visualization supercomputers or business transaction processing machines.
Anyway, I don't know if I agree with the idea that the beige G3 represented an abandonment of that market, even though it did represent a shift in strategy for Apple, and companies *cough* Avid *cough* building large boardsets would need to adapt somehow. Jobs definitely wanted Apple to succeed and I think he saw that part of what was losing Apple potential money was the fact that they built so many different machines.
I'm sure Apple could have adapted the Beige G3 design up and down a tier or two. Perhaps a flat 6360-shaped machine with the PERCH slot and one PCI slot both on a riser, and perhaps a 6-slot version that was basically the same as the existing tower but with more slots and bays, and we of course know about the all-in-one version for the education market, but I also think Jobs correctly identified that having too many options, many of which were only ever suitable for a slim portion of the market, was slowly killing Apple.
And, for Apple's customers -- the ones who stuck it out with them -- Apple that sells a machine that only 90% meets their needs is better than an Apple that doesn't exist at all, and doesn't sell any machines.
All of this stuff is cyclical. We're seeing Apple come back to the idea of building a big internally flexible tower computer. It is likely they'll float back and then forth again over the coming years/decades.