this post was submitted on 20 Aug 2023
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Mac OS was running on RISC processors back in the 90s, and Steve Jobs used them in his NeXT computers which used a variation of BSD, which was the basis for OS X which could run on PowerPC.
Apple’s had a ton of experience with RISC so it makes sense they’d do it well.
NeXT computers were based on Motorola 680x0 processors that were actually CISC ( not RISC ). Steve Jobs did run MacOS on RISC in the 90s though as that is what PowerPC was.
Modern Apple silicon is of course ARM64 so not the same architecture as PowerPC at all.
NeXTStep ran on multiple architectures, some oft them RISC. They did some work on a PPC build too