On Thu, Oct 27, 2005 at 09:39:27AM -0500, Nord, Al wrote: > From what I have seen with the Apple //e revision C logic board Apple > could have adopted a faster CPU speed but chose to keep the 1 mhz.
They were probably conscious of compatibility issues. Don't forget that most Apple II software was designed for a 1 MHz CPU and relied heavily upon direct access to the hardware; tweak one or the other, and you would have a lot of trouble. (Keep in mind that both the IIc+ and the IIgs would revert to 1 MHz if needed.) I hate to put it this way, but the Apple II was a pretty poorly designed system in an industry which had a fairly rapid upgrade cycle. But that's not Apple's fault. If you told Woz in 1977 where computers would be today, he probably wouldn't believe you. > The Apple //Gs was crippled because Apple was trying to sell the > Macintosh LC computers to the schools. The Macintosh LC was released nearly half a decade after the IIgs. > This bad marketing plan also put the 68040 without the co processor Yes. And this was the norm in most low end Intel based systems. Math coprocessors didn't come as standard equipment until the mid-1990s, when they were cheap enough to integrate into pretty much every CPU (and there was enough software using it to justify it). > That was a good indication of the problems IBM had with their Dos 3.3. > This was funny as the Apple was also using Apple Dos 3.3. These were completely different products. And it was unlikely that the problems you saw on PCs were the product of DOS 3.3 alone. IIRC, the 6502 could execute many instructions in one or two clock cycles, while the 80x86 required several clock cycles. But my memory is vague. Byron. -- Apple2list is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> Apple2list info: <http://lowendmac.com/lists/apple2.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/apple2list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
