Samsung is claiming a 10-hour battery life for its new N120 netbook. What's more, the N120 is actually a proper-sized laptop with a 10in screen. Powered by a 1.6GHz Intel Atom N270 processor and with the usual 160GB hard disk, onboard Intel GMA 950 graphics and 1GB of RAM.

It will weigh 1.28kg and will cram in a 1.3Mp webcam and 1.5 Watt speakers. Pricing has yet to be announced ahead of its May launch, but online reports suggest its likely to have a heftier than usual price tag than most netbooks.

Samsung also announced two more laptops this week - the Q320 and the R522. These are in addition to the N310 unveiled on Monday.

An ultraportable laptop weighing around 1.3kg, the Samsung N310 looks like a worthy alternative to the Apple MacBook Air and its recent Windows-based lightweight alternatives. One of the most compelling features will be its keyboard that is 93 percent of the size of a standard desktop PC's.

The Samsung R522 is a 15.6in entertainment-centric laptop with proportions geared up for Blu-ray and HD video playback. Based around an Intel Centrino 2 processor.

The Samsung Q320, meanwhile, is an unusual 13.4in laptop with an 'edge-to-edge' screen, meaning it has no bevel around it. Capable of running for around four-and-a-half hours before needing a recharge, it offers full HD media playback in a 16:9 aspect ratio and is primed with dedicated nVidia GeForce G105M graphics. This chip supports 3D image processing.

Samsung N120 netbook