I hope you enjoyed Saturday’s Mac Riddles, episode 364. Here are my solutions to them.
1: Border lake brings an end to Integrated Electronics.
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Tahoe
Border lake (Lake Tahoe, on the border of California and Nevada) brings an end to Integrated Electronics (the original name of what is now Intel, as Tahoe is the last version of macOS to run on Intel Macs).
2: What can’t change its spots ended the power of aim.
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Leopard
What can’t change its spots (a leopard) ended the power of aim (it was the last version of Mac OS X to run on PowerPC processors made by the AIM alliance of Apple, IBM and Motorola, with 10.5.8 on 5 August 2009).
3: What brought HFS+ proved the last for the Galvins’ radios.
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Mac OS 8.1
What brought HFS+ (it introduced the HFS+ file system) proved the last for the Galvins’ radios (it was the last version of Classic Mac OS to run on Motorola 68K processors. Motorola was founded by the Galvin brothers to built radios).
The common factor
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They are the last Mac operating systems to run on each of Apple’s discontinued architectures.
I look forward to your putting alternative cases.