People were willing to buy this processor to be future-proof and once enough people had AMD64 CPUs it became interesting to sell 64 bit software, solving the chicken-and-egg problem. This processor could run all existing 32 bit software. Then AMD introduced their own 64 bit instruction set, to be used by their 64 bit processor. Nobody wanted the processor because there was no software to run on it and nobody made the software because nobody owned the processor. However, the Intel 64 bit processor could not run 32 bit software and as most proprietary software was only released in 32 bits this software couldn't run on the Intel 64 bit processor. Then Intel came with the Intel 64 bit instruction set, used by the Intel 64 bit processor. Once there was just 32 bit (and 16 bit before that, and some exotic systems used 18 bit or whatever). Or are they both 64 bit backward compatible to 32 bit? Maybe it is confusing or maybe I'm still confused, but now I know that we are talking about instruction sets and not processors per se. Correct? If so, why doesn't the xubuntu site (or anybody else) just use the AMD instruction set? Any why does the xubuntu site not state whether the Intel OS selection is 32 or 64 bit. It seems that you are saying that the AMD64 64 bit instruction set is backward compatible to 32 bit, so one could not go wrong making this selection. Nowadays both Intel and AMD CPUs use the same AMD64 instruction set. Intel had introduced its own 64 bit CPU before, using a different instruction set, but the AMD64 was compatible with 32 bit software. This 64 bit instruction set was introduced by AMD, so it's knows as the AMD64 instruction set. This 32 bit instruction set was introduced by Intel, so it's know as the Intel 32 bit instruction set. It doesn't mean one is for Intel processors and the other for AMD processors.
0 Comments
Leave a Reply. |