Repórter Retro 116 - Retrópolis

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i860 Intel took a RISC: it did not end well

https://makertube.net/w/3SrVbYaGA4Yj4EJYCgmh31

i860 Intel took a RISC: it did not end well

PeerTube

Did you know that the 'NT' in Windows NT stood for "Nine Ten"?

The intended core platform for the OS was the then-expected Intel i910 RISC processor, which was to be the rebranded moniker for the i860 that can be found in the wild. *

It never came to be due to the i860s terrible handling of context switching -- a capability that a CPU for a multitasking, multiuser workstation OS must be able to do _very_efficiently_. The i860 wasn't.

https://www.youtube.com/watch?v=WTkFGZqVCM8&t=459s

*** EDIT: Several have pointed to sources indicating differently that NT stood for N10, which was the codename for the i860, so -- N10, N-Ten > NT.

#TIL #WindowsNT #Windows #Intel #i860 #i910 #vintagecomputing #retrocomputing #OS #techhistory #RISC #x86 #processors #computers #computinghistory #Microsoft

i860 Intel took a RISC: it did not end well

YouTube

https://www.theregister.com/2023/10/30/arm_intel_comment/

[Windows] NT was initially developed not on x86 chips but a new Intel architecture called the i860 – codenamed N-Ten or NT for short....As Cutler and his team discovered, though, while the #i860 could be a fast and efficient graphics processor, it was a three-legged dog for multitasking operating systems like NT. #Intel expected its dominance to see a bad system through enough iterations for the market to both help to fix things in software and be won over....#Microsoft dutifully ported its core #Windows #NT server code to #Itanium to find it too was a three-legged dog, only perhaps with not quite so many legs and laughable backwards compatibility. Never mind, thought Intel, the market will wait for a few iterations, help build the code base, and be won over.
Meanwhile, AMD sidled up to Microsoft and asked if it was interested in 64-bit extensions to IA-32. Ones with a full complement in the legs department and total compatibility. Cutler and co. signed up on the spot. The result was so successful that Intel was forced to adopt its rival's innovation and let Itanium sink without trace.
A great concise blow-by-blow of how Intel's lack of vision and failure to successfully innovate caused it to lose its dominance in the PC market.

Intel's PC chip ship is sinking with Arm-ada on the horizon

That's what happens when you completely misread the market

The Register