The next step up, and the operating system included with most home computers, is Vista Home Premium. This includes everything found in Home Basic, and more besides. Unlike Basic, Home Premium can burn DVD discs and play DVD movies without the aid of any additional software. A boxed copy of Vista Home Premium can be found online for around approximately Rs. 10070.

It's hard not to notice Windows Aero, which gives windows a semi-transparent look and enables the snazzy Flip 3D browser. Two new features that you might not spot, though, are the enhanced backup tool, which can be set to back up files according to a schedule, and the support for touchscreen control. If you are lucky enough to have a tablet PC, a touch-sensitive display or a graphics tablet, Home Premium can make the most of it.

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Another obvious addition to Home Premium is Windows Media Center. This provides a simplified way to browse through and play music, videos and digital photos, and connects neatly to Windows Media Player. It also has a number of handy hidden features. The best, is undoubtedly its electronic programme guide (EPG). Add a TV tuner to your PC, and Media Center will convert it into an all-singing, all-dancing personal video recorder (PVR) that can watch, record and time-slip TV programmes. You can also buy a remote control and receiver to operate it from a distance - ideal if you can connect the computer to a high-definition TV. What's more, if you have an Xbox 360 games console, it can be used as a Media Center Extender. If you have a home network, this can give access to all your music, video and TV in another room.