ASUS has unveiled a prototype of its latest all-in-one PC at Computex 2012. The Transformer AiO is the first desktop targeted device designed to run both Android 4.0 and the upcoming Windows 8 OS, and while an all-in-one case design isn't new, the difference here is that the 18.4-inch multi-touch display can be completely detached to function as a (very large) tablet.

The AiO lives up to its Transformer name thanks to its desktop and tablet configurations, but unlike previous ASUS Transformer devices, it can hardly be called portable.

When you remove the 10-point multi-touch LED-backlit display from its base, the AiO instantly switches from Windows 8 to Android 4.0, giving access to applications that better fit the tablet configuration. In tablet mode all processing is handled at the desktop dock, which requires a constant power supply.

As ASUS has only shown off an early AiO prototype that's said to use an Intel Ivy Bridge processor, but there's currently no further details on specs (battery life will be an interesting figure given the size of the tablet), pricing or a release date.

Source: ASUS via: The Verge