Linux.com

Technically, a UMPC (Ultra-Mobile PC), as oriignally defined by Microsoft and other vendors, must have touch screen and tablet capabilities, so none of the above computers qualify. Microsoft defined the term ULCPC (Ultra Low-Cost PC) ex post facto to cover the class of small notebook computers you describe above, although the terminology predates Microsoft and not all small notebooks meet Microsoft's definition. Then we have "sub-notebook", "ultraportable computer", "mininotebook", and "netbook", not to confused with a MID (Mobile Internet Device). Of course, even where vendors have formal specifications for a given category, those specifications evolve over time.

Hope that clarifies things.

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