New ask Hacker News story: Contribution of OS to slim nature and passive fanless cooling of MacBook Airs

Contribution of OS to slim nature and passive fanless cooling of MacBook Airs
3 by donboscow | 4 comments on Hacker News.
If you recall Jobs' iPhone keynote in 2007 - he quoted Alan Kay saying that companies who are serious about software should make their own hardware. As we see MacBooks today are slim, fanless, passively cooled. That is indeed an engineering feat. Question - how much of it is due to innovations in the OS - like optimizing code, multithreading architecture novelties, etc., and how much of it is pure hardware engineering like shoehorning lots of components in cramped space? Does the passive cooling without fan dependent on the OS in any way - that it runs in such a way that the machine is never heated above a certain threshold and hence fan is not required? MacBook folks often say that Apple devices are col because the hardware and software are "intertwined". How exactly?

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