Phone unlocking is a process whereby you make it possible to use any SIM rather than just the one you received from your mobile provider.
Many people think iPhone unlocking is difficult, or illegal, and the suspect-looking shops that specialise in SIM card unlocking don't do much to suggest that iPhone unlocking is a legitimate practice. But you can get free iPhone unlock codes from your mobile phone operator.
Apple user's dictionary of tech jargon: V-Z
What is Wi-Fi?
Wireless technology used to transmit data from a router to a mobile device (such as a laptop, smartphone or tablet).
What is WWDC? (What does WWDC stand for?)
WWDC stands for Worldwide Developer Conference, and is the annual get-together where Apple reveals its major operating system updates to app developers (and to the watching media, of course) and then runs lots of workshops and tutorials.
What is Xcode?
Mac OS X software development environment. A program distributed for free by Apple that enables users to create Mac OS X and iOS software.
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