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Home Forums 68kMLA Difference Between Apple /// & IIGS? — #16
Post #16 by Mac128
Source Forum68kMLA
CategorySoftware
Post DateWed, 9 Sep 2009 - 04:23
Original URLhttps://68kmla.org/bb/threads/difference-between-apple-amp-iigs.18456/
Post
An Apple III had built-in II Plus emulation and that was with 40 columns and only 48k RAM. Not having a language card, how do you load integer basic programs or run Pascal. So technically you couldn't get it to run a huge amount of pre 1980 software? Also some Applesoft programs needed 64k
Again the solution seems to be in that the Apple III was built around Apple II Hardware. According to the Apple III FAQ:

Titan made a ///+// card for the /// - it increased memory up to 128K in //+ emulation and offered a RAM disk in native mode. The "Titan ///+//e" - a set of two-cards that really turns your /// into a 128k //e. You'll want to add a 65c802 CPU (in place of the 6502) toensure compatibility with newer Apple // programs (it has no effect on native mode applications). The cards

offer a RAM disk in native mode as well.
So it seems pretty clear that third party cards could make the Apple III just as capable as similar cards required to make the II Plus as powerful.

Now that I am clear on exactly what the 65c816 was doing vis-a-vis hardware, I'd have to say that the III had as much right to be called a II as the IIGS. The only difference being that the III did everything it could to cripple support for the Apple II mode out of the factory and the IIGS did everything it could to facilitate it. Nevertheless, with the same kinds of add-on cards required to provide the same functionality on an actual II Plus, the III was a perfectly capable II Plus (indeed even a IIe), with the same processor running at its core. Had the Apple III stuck around longer, I wonder if more developers would have attempted to circumvent Apple's debilitating efforts. In researching this it seems the main reason for the III's failure was a complete lack of advance developer support (a problem Jobs astutely avoided with the Macintosh). Even if the hardware had been trouble free, the lack of available software and lower price would have likely kept the Apple II alive for many more years anyway. Who knows, eventually Apple might have merged them into the IIGS anyway, as Apple realized the folly of trying to separate the two systems.

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