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Highlight Groups in Address Book

Want to see which groups one or more contacts belong to? Select them and then press the Option key. Address Book highlights the groups of which the selected contacts are members.

 

 

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What 64-bit Support in iPhone 5s Really Means

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Thanks to author and programmer Mike Ash for this developer-focused explanation of Apple’s move to the 64-bit A7 chip in the iPhone 5s. In short, although details will vary by app, 64-bit code that takes advantage of new programming techniques can be faster and use less memory (though 64-bit apps use more memory in general). Plus, old 32-bit code can run on the A7 with no changes or performance penalty.Generic Globefollow link