Main Page | See live article | Alphabetical index Sub-notebook is an ambiguous term for some kind of laptop computer that is smaller than a notebook, usually smaller than a DIN A4 Page of Paper. It could be either a common laptop or something more like a personal digital assistant. Computers larger than PDAs but smaller than notebooks are also sometimes called "Palmtops". This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.