21 magnets discovered inside the iPad 2 Smart Cover

By George Wong on 03/14/2011 09:41 PDT

Smart Cover magnets

If you’ve purchased an iPad 2 last week, you probably would’ve gotten a Smart Cover for the device as well. If I’m not mistaken when you played around with the cover, you’ve probably wondered – why is the Smart Cover is so smart? The folks at iFixit gave it a well-deserved teardown and discovered why it works so well. The Smart Cover packs a whopping total of 21 magnets within its folds. These magnets allow you to easily fold the cover into a stable triangle as well as affix sturdily to your iPad 2. In addition to being a mount/case for your iPad, the magnets are used to trigger sensors on the iPad 2 to activate/deactivate sleep mode. Head here to check out the Smart Cover teardown if you don’t dare to put your own Smart Cover under the knife.

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iOS was once upon a time called iPhone OS, or "operating system", which is the software that provides all the basic device functionality and is the interface between the hardware and applications. iOS was introduced with the iPhone on January 9 2007, and it was originally not intended to be programmable by third parties. Steve Jobs had envisioned that developers could create Web Apps that would run in the browser. This changed less than one year after when the iPhone SDK (software development kit) was introduced in October 2007. Today, hundreds of thousands of apps have been created for this platform. iPhone OS became iOS on June 2010. Interestingly, both iPhone and iOS were former trademarks of Cisco, that Apple now uses under a license.

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