So to the big question: why upgrade to 64-bit at all? Simply put, a 64-bit operating system offers three inherent benefits.

How important is RAM size to the way we use 64-bit Windows? And are there other ways to get around the problem? We offer a couple of tips to get you through your 64-bit RAM blues.

Are 64-bit operating systems compatible with your computer and existing software releases? Is it really worth the hassle

With Windows 7 arriving soon, is now the time to upgrade to 64-bit? Here's the first part of our guide to everything you need to know

Run Windows or another OS on your Mac

It is starting to look like things are going to heat up on the GPU front as Nvidia and AMD go head-to-head in the next month or so.

Microsoft is offering substantial discount deals on Windows 7 Home Premium packs for families (up to 3 licences) for under $250.

The Green Goblin has been showing off its Fermi architecture at its GPU Technology Conference in San Francisco.

Microsoft has admitted that Windows Vista is shipping with a bug that was first discovered in Windows machines in 1999.

The Commonwealth Scientific and Industrial Research Organisation (CSIRO) has put together a supercomputer that's based around a cluster of graphics processing units (GPUs)

Give your PC additional protection with this free security suite

Backup or restore your hard drive

It’s missing a couple of key features, but nevertheless, Vegas Pro is highly sophisticated and quick to use for serious video editors.

We've tested a massive 25 netbooks to provide a list of the best and worst mini laptops, with one surprise winner. Also, see our big TV set top box guide, in the new issue of PC Authority

Watch satellite TV on your PC

Parallels is making Windows applications on the Mac an even more seamless experience with the release of Desktop 5 for Mac, which adds support for Windows 7 and a new Crystal view mode that gives Windows applications a more Mac-like appearance.

It’s not cheap, but it’s powerful and cleverly constructed to make the most of the components.

Prophecy is a hazardous art when it comes to computers. We do know what's coming to the PC in the near future however, so read on to see the year ahead

The HP Pavilion s5180a punches above its weight and provides a welcoming entry point for a starter or low-end upgrade system.