The latest update of the Apple Mac operating system OS X, known as Snow Leopard, goes on sale Friday.

The test firing of the first-stage rocket motor Nasa hopes will one day launch its astronauts is called off just seconds before it was due to take place.

Dell sees another decline in quarterly profits, but says it expects sales to improve for the rest of the year.

Apple approves the Spotify iPhone application, allowing users to stream music to their mobile handsets.

What to expect from Apple's latest operating system

Social networking site Facebook has agreed to change its privacy policy as a result of negotiations with Canada's government.

Do social networks make people self-obsessed?

Your chance to put a question to Intel boss Paul Otellini

Microsoft is to cut the price of its high-end Xbox 360 Elite console to £199.99 but raise that of the entry-level Arcade to £159.99.

Inside the boot camps for Chinese web obsessives