My main computer since 2013, has been a rocking MacBook Air. It is the first generation of the system based on the Haswell chipset, and it has been awesome. It came with Mountain Lion (10.8), and has been upgraded thrice now, recently to El Capitan. When I got it, one of the huge benefits was the battery life. The data sheet said 12 hours, and it easily beat that. I often went several days...
Showing its age – or is it
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