We've searched every corner of the web for the most useful (and useless) sites you've never seen. Download free movies and music, find the cheapest shopping sites, get a degree, make money, walk on Mars and much more.

PC Authority takes a trip down computer memory lane and discovers just how PC technology has evolved... and how Microsoft and IBM nearly destroyed each other.

Climb the steps all the way to Windows guru status with our invaluable selection of tips and shortcuts for XP and Vista.

Traditionally firewalls were the bastion of large, publicly accessible networks to keep hackers out. But in a world connected by the Internet, every machine hooked up to it becomes publicly accessible, and so it's vital that every machine is equipped to protect itself, and the network it may serve, from attack.

A few weeks ago we asked for your eBay stories, and we’ve received a lot of responses about bad sellers, demanding buyers and more.

We provide the commentary on a bruising eight-round battle between Vista and Tiger.

Machines approach Turing Test threshold.

Krome is busy putting finishing touches on Star Wars: The Force Unleashed. We spoke to them about the game, Krome's new Merkury3 engine and more.

Apple’s ads may be funny, but they’re woefully inaccurate. Here we reveal dozens of reasons why the PC outclasses the Mac.

Run Windows apps on Linux by running Windows itself. Leigh Dyer shows you how.

Don't be confused; this XP has little to do with Microsoft. It's what happened when software developers pushed the best practices of programming to the edge, to the extreme.

The Internet is booming again, but this time it’s very different. PC Authority brings you up to speed with the global Web 2.0 phenomenon.

These days, when I need to send someone a document, I use email. Just save it as a Word.

With the increasing size of operating systems, games and the broadband smorgasbord of music and movies, it's just a matter of time before that dreaded message box pops up to tell you just how little space you have left.

Your photos, music and data are just a virus or hard disk failure away from oblivion. Build a triple-layer defence using PC Authority's practical guide.

PC Authority takes a stroll through 2,500 years of computing history. Next month, we look at the future. Whether you work directly in IT, or even just about anywhere in todays soci

Probably the best place to start with the notion of artificially intelligent machines, is to get some perspective on exactly what comprises intelligence, or other similar concepts like awareness or se

1918 Enigma The German Enigma is surely the best-known mechanical cipher machine. Invented in 1918, it was developed as a commercial and military encipherment system. Enigma

It's always a bonus to uncover a shortcut or program enhancement, and here we bring you 100 tips and tricks that we hope will make your computing experience quicker, simpler or more rewarding. Server Tips.

The first time PC Authority got to take a look at a Twinhead notebook system (the Slimnote VX, Labs tested issue 20, p59) was back in July's test of budget notebook computers.