chai_yo123
asked on
16bit OS & 32bit OS
What essentially is different between a 16bit OS & 32bit OS.I know one difference as the address
pointing capacity will be more,But what exactly are other major differences that drwas a line of
distinction between 32bit OS & 16bit OS.
Secondly ,can a 64 bit OS run on a 32bit processor ?????
Regards,
Chai-yo
pointing capacity will be more,But what exactly are other major differences that drwas a line of
distinction between 32bit OS & 16bit OS.
Secondly ,can a 64 bit OS run on a 32bit processor ?????
Regards,
Chai-yo
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I really feel the need to reply to Leimy's comments. :)
I think that its important to start by saying that the limitations of a 16 bit OS really come from the underlying hardware.
Since the 16 bit hardware didn't support things like protected mode neither would the OS. So you should look into the difference in the processors. This is in the first chapter of most OS books.
There is also the issue of memory models, not just how much you can access, but how it accessed.
Finally, the logic that since a 16 bit OS can run on a 32 processor then a 64 bit OS could run on a 32 bit processor is flawed. The problems with porting are not really the same at all.
Anyway, you really need to look at the changes in the processor, those changes dictated a lot of the inovations that appeared in PC operating systems.
Artimage.-
I think that its important to start by saying that the limitations of a 16 bit OS really come from the underlying hardware.
Since the 16 bit hardware didn't support things like protected mode neither would the OS. So you should look into the difference in the processors. This is in the first chapter of most OS books.
There is also the issue of memory models, not just how much you can access, but how it accessed.
Finally, the logic that since a 16 bit OS can run on a 32 processor then a 64 bit OS could run on a 32 bit processor is flawed. The problems with porting are not really the same at all.
Anyway, you really need to look at the changes in the processor, those changes dictated a lot of the inovations that appeared in PC operating systems.
Artimage.-
Fixed the -1 problem on this question.
Escrow points corrected.
kb
Community Support Moderator
Experts Exchange
Escrow points corrected.
kb
Community Support Moderator
Experts Exchange
As for your second question, what does the fact that a computer is a turing machine tell you? :) The implication is that a calculator processor can do anything a cray can do given enough memory.
Artimage.-