>PMI,
>
>But wasn't an MMU required for the 68000?
No, it is optional. 68030 and up have MMU built into the chip.

I had a 68000 coprocessor board for my Apple ][ and I seem to recall an MMU chip.
>
>
>>Thanks for the clarification.
>>
>>>Your observation is correct, but your terminology is incorrect. Intel x86 memory is segmented (note that starting with 80386 processors, the protected mode segment size is increased to the full 4 gigabyte address range -- ie. linear addressing). Paged refers to the facilities of the MMU (Memory Management Unit) which later versions of both Intel and Motorola processors support. You are right to question the graphics based comment, the is no graphics advantage in the 68K CPU family.
>>>
>>>>Christopher,
>>>>
>>>>>Tom,
>>>>>
>>>>>Forgive me for butting in with my first Universal Thread message from nowhere, but was it the 68000 that was graphic based? I thought that the Mac's advantages lay in the machine architecture and not the processor chip. True, the 68000 was had none of the archaeological features of the 80x86 but it still died first, from a design accident - its op code structure made pipelining impossible. So Apple went to RISC. From what I have read of the Crusoe, maybe the end is nigh for the Intel family?
>>>>>
>>>>>I hope that I am not in breach of etiquette
>>>>
>>>>Actually, the primary difference I've always understood was that the 68000 series chip managed memory in a linear fashion while the 80X86 chip family managed memory in a paged fashion.
>>>>
>>>>I think that the Crusoe chip might well give Intel fits - along with AMD. <g>