The blurry, transparent background in Notification Center, Control Center, Spotlight and other more options menus on iOS 7 device can make reading experience rather unpleasant.
In this day of age, it's very practical to have a Windows 7 installation on your USB key, for many netbooks and devices don't come with CD/DVD drives anymore.
If there is no WiFi hotspot available and you still want to surf the web with your mobile device, you need to have your mobile provider's APN settings entered and this is where you find them.
A really useful feature in case you want to receive a warning notification before you use all of the mobile data available according to your mobile provider contract. It's a great way to avoid additional charges.
Select database queries with Inner, Left and Right Join represent an important part of SQL syntax and come in very handy when you want to make more advanced queries.