We've taken seven top business PCs and run them through their paces to find out which should be your next upgrade.

The first place to start tweaking is your BIOS. Enter your BIOS by hitting a key combination on system boot (look out for F1, Del etc). A word of warning though, the BIOS is a very powerful tool, but can cause damage if pushed the wrong way.

The notebooks were subjected to several benchmarks to give an objective evaluation of their speeds, performance and applicability.

Just a few years ago, a PC equipped with a 200MHz processor and 64MB of memory would have been considered high end. Even today, it will happily run most apps you care to throw at it. So, when you cons

If you don’t have a car with built-in satellite navigation, the most cost-effective way to add it is by opting for a handheld device with a GPS receiver.

Unlike many of our performance-based Labs, business workstations are a whole different world of PCs, focusing not on the maximum number of frames per second, or how many overall points they can churn out in any given benchmarking utility.

Finding a good PC or notebook for the family is not as hard as you might think. PC Authority  puts the latest models to the test.