according to google gemini
so according to chatgpt
it would be possible to build a functioning x86 cpu
with those expired patents
but the patents for avx and other functionality has not expired
according to google gemini
and according to chatgpt there are some projects
like vortex86 and opensoc86
patents in usa usually expire after 20 years
so chinese companies could develop and produce a x86 cpu
and sell it on the international markets
completely legal
but that cpu could possibly have limited functionality
unless the companies involved
develop or buy their own technology
to give the cpu more functionality
microsoft windows is made from technology consisting of many patents
and as the product is continually developed, more patents are added
but as patents in usa expire after 20 years
it's interesting to note that
windows 1.0 was released 1985
and windows 95 was released 1995
and windows xp was released 2001
according to wikipedia
but it would probably take a lot of reverse engineering
for another company to make a windows product that works
but there is the reactos project
both private and business customers
probably prefer to buy x86 cpu from intel and amd
and windows from microsoft
but since those customers have invested a lot of money
into software and hardware in the x86 windows ecosystem
and a lot of time and effort into training
then those customers
would probably like if there were functioning open source alternatives
to both x86 hardware and windows software
so that those customers had alternatives
if intel, amd or mictosoft discontinued their x86 windows products
or even worse if intel, amd or microsoft went bankrupt
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