Do you have a business or are in charge of a business’ tech security? Get some tips from PC Authority’s experts.

Discover how Google Sky, Microsoft's WorldWide Telescope, and dedicated software such as Starry Night or Stellarium allows you to explore the stars and view the planets in stunning detail without even touching a telescope

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

The Internet, and to a degree wireless networking developments, are an attractive source of inspiration for NASA engineers. After all, with budget constraints on everyones minds, if lessons can be lea

The HST (Hubble Space Telescope) was first conceived back in the 1940s, designed and built during the 1970s and 1980s, and finally launched into orbit by the Space Shuttle Discovery on 25 April

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.

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.

Space may be the final frontier, but forget sci-fi for a moment because, as Davey Winder explains, the science fact is far more impressive. If you think youve got it bad trying to keep yo

Find out how Microsoft’s impressive new OS will share and back up all the data on your home PCs, among other tricks.

An old PC is like putty in your hands. Tim Dean looks at how you can shape it into a new system with a few easy upgrades.

We open up Serious Samurize and show you how to create a desktop object that displays free hard drive space.

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.

Microsoft’s radical redesign promises ‘better results, faster’. Be fully prepared for this world-leading productivity software.

What job involves acid baths, robots and space suits? Read about the fascinating world of computer chip fabrication, with PC Authority’s exclusive imagery and insights.

David Fearon introduces 3D models and rendering

Stuart Andrews shows you how to set up and maintain the perfect backup routine.

Microsoft has started from scratch with Vista’s networking features — but are they any better than those found in XP? We log-in and find out.

Here's a handful of the best laptop bags around - perfect for protecting your pride and joy while you're out and about. In addition to the essential protection, these bags also come with oodles of style.

Finally, a few words on image size. The general rule is that a digital image is best with as much of its original resolution as possible. If you crop a digital photo excessively, youre lowering the ov

To help you find the best plan for your needs, we've split up users into the following common profiles and provided recommended plans for each. Note that many ISPs have more plans than we could list in the table. We chose to only include the plans from each ISP that were the most competitive compared to the rest of the industry. This means there might be a more suitable plan for you that we didn't list, so be sure to check out the complete range of plans from an ISP if you don't find a good fit.