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Not sure why Microsoft is writing about PowerPC 600 now, other than some technical insights, anything else interesting? I feel PowerPC is gone, along with UltraSPARC, HP, SGI, etc chips.

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PowerPC as a trademark is, but given that modern Power ISA implements almost all of it and then some, the architecture is hardly "gone."

There's still a lot of Power chips in the embedded space and high end server hardware, and there are also boutique systems like the modern Amiga (mostly embedded chips) and the Talos II (POWER9).

This is Raymond Chen’s blog, who has been writing interesting technical articles, including multiple detailed introductions of past and present architectures, for more than a decade (maybe even longer). Some of the covered architectures are gone entirely, some have changed since their presented form. That’s a big part of what makes them so interesting.

Raymond celebrated 15 years of blogging about Windows history and related topics recently (July 20)

https://blogs.msdn.microsoft.com/oldnewthing/20180720-00/?p=...

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