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Article #623246Re: Tahoe and Alpha Architectures
From: Peter Flass
Date: Wed, 25 Apr 2018 14:01
Date: Wed, 25 Apr 2018 14:01
37 lines
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3315 bytes
J. Clarke <jclarke...@gmail.com> wrote: > On Tue, 24 Apr 2018 21:27:28 -0600, Grant Taylor > <gta...@tnetconsulting.net> wrote: > >> On 04/24/2018 07:53 PM, J. Clarke wrote: >>> It does but not the way you mean. Windows NT runs on Alpha, i860, >>> MIPS R4000, PowerPC, Itanium, and SPARC. >> >> Windows NT is from Microsoft, not Intel. >> >> You also missed x86 and x86_64 (or x64 if you prefer). > > They are assumed. > >> Note: Intel makes three of those architectures: x86 (x64), i860 >> (i960), and Itanium. > > And of those the only one that sells is x86. So come up with a > convincing argument that some other architecture will actually sell > enough units to be worth the cost of development. > Chicken-and-egg problem. No matter how excellent the architecture it isn't going to sell unless the software is there for it. Conversely, no one is going to develop the software for something that people aren't going to buy. Linux short-circuits this; as mentioned, just re-compile your programs for the new architecture (and hope for no compatibility problems) The other problem is that the architecture is only part of the chip. Microcode does lots of things behind the scenes to make the chips faster, less power-hungry, etc., and lots of effort goes into this. Apple said as much when they switched from PPC to Intel (a mistake in MO, but what do I know). They couldn't see getting the performance improvements they wanted out of the PPC over time. -- Pete
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