In this article at Macworld, now updated for the third-generation iPad, Dan Frakes runs down all the possibilities for charging an iPad — wall chargers, high-power USB ports, and low-power USB ports. If your iPad takes longer to charge than you think it should, make sure you’re using the right port and giving it sufficient time. follow link
How Loud Are Your Mac's Fans?
When they get hot, Macs turn on various internal fans to keep components cool. The noise can be annoying, but just how loud is it? If you have an iOS device with a built-in microphone, you can download one of many free sound meter apps (search on
decibel in the App Store) and see if you're subjecting your ears to a truly unreasonable noise level.
- ExtraBITS for 2 April 2012 (02 Apr 12)
Dan Frakes Explains iPad Charging Issues at Macworld