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

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

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

After a few months of BETA testing, Microsoft has finally released the next official first aid kit for Windows Vista - Service Pack 2.

Can't handle gaming and beaten by cheaper media cards too.

The Sony bandwagon rolls on; this is another simple to use set that produces brilliant big-screen images

It's a shame this isn't cheaper: a fine projector if you're prepared to pay a premium for Full HD

Another cracking Panasonic flatscreen, which impresses with both its integrated TV tuners and external sources

Apart form your credit card's cries of anxiety, you'll love the flexibility and performance of this TV

Award-winning TV with exceptional picture quality, although it has now been replaced by Panasonic's 2008 range

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

Emerging entrepreneurs offered affordable online presence.

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

Download the bookmarks to the 50 Web Secrets websites feature from PC Authority September 2007.

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.

Harvard welcomes the world's richest college drop-out.

Look before you link.

A group of Victorian ICT and computer games companies have headed to Japan on a trade mission.

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.

Amazon.com on 27 December reported its busiest holiday shopping season ever.