Linked by Thom Holwerda on Sat 9th Feb 2013 18:54 UTC
Windows "The 16-bit Windows kernel was actually three kernels. One if you were using an 8086 processor, another if you were using an 80286 processor, and a third if you were using an 80386 processor. The 8086 kernel was a completely separate beast, but the 80286 and 80386 kernels shared a lot of code in common." As always, Raymond Chen delivers. If you don't yet follow his blog, you should. Right now. Click that bookmark or RSS button.
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RE[4]: On a side note
by siride on Tue 12th Feb 2013 02:32 UTC in reply to "RE[3]: On a side note"
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Keyword "mostly".

And, in any case, it's much better than compared to OS X or, especially, Linux. You have to rewrite programs written for different versions of the same GUI toolkit. The only thing you can really count on is the kernel interface and, to a greater or lesser extent, glibc's interface. Everything else is subject to change (and change it does).

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