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In Depth AI that solves single problems would have been the subject of SF novels just a few years ago. What new AI awaits us in the next five years?

Tutorial Get more speed from your processor for free

In Depth Some pundits believe 10 petaflops is the processing power of the human brain - so on that basis, the K Computer will outperform the human brain within months.

Opinion The battery life claimed for laptops is often a sublime fiction

Tutorial Hacking classic networks using simulated hosts

In Depth Increasing the dynamic range of your photographs

Tutorial How to make a photo look like a tiny fantasy world

Tutorial Little-known tweaks and tips to improve Windows

In Depth Electronic payments are everywhere. Is it time for cash to take a hike?

Tutorial Get more from PayPal by exploring advanced options

Tutorial Keep tabs on your lost device, and the person who has it

Opinion Let's rethink software delivery without a gatekeeper

In Depth How algorithmic trading has reshaped the stock market

Opinion A 120Hz monitor is a lovely thing

In Depth Tips to help you get more from WordPress

In Depth Your data is valuable to marketers and miscreants alike

Tutorial Install Google Chrome OS on a netbook in a few easy steps

Opinion Technology is locked down and experimentation is discouraged

Tutorial Make sure you never lose an important message again

Opinion A world where we have full control over the devices we pay for