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In Depth When Apple opened up the iOS platform to developers, it turned the company's portable devices from useful devices into essential ones.

Tutorial Changes introduced in OS X Lion weren't to everyone's taste. Luckily, there are plenty of tweaks you can make.

Tutorial You don't need to invest in monitors, mounts and cards to add extra displays.

Tutorial Access your PC, see security footage from home and print from your handset.

Explained New PC? Here's our comprehensive guide to everything you need to know about Windows 7.

Tutorial The home server is nothing new, but it's time we started taking the idea seriously, and part of that is knowing how to build and configure one.

Tutorial Make the most of iPhoto's powerful photo handling on both your Mac and your iPad.

Tutorial Text Effects transitions in Keynote make it possible to move between text-heavy slides in a visually engaging way.

In Depth Use the keyboard to get full access to the parts of Windows 8 that won't be obvious at first glance.

Tutorial The Android-x86 project provides versions of Android that can be used on a variety of hardware - we show how you can install Android on an x86 PC.