An HP 2133 Mini-Note netbook compared in size to a standard pencil (top) and probably an A5 format book (bottom). This particular model has an 8.9 inch screen. Other netbooks are available with 10.1-12 inch screens. Netbooks (sometimes also called mini notebooks or ultraportables) are a branch of subnotebooks, a rapidly evolving category of small, lightweight, and inexpensive laptop computers suited for general computing and accessing Web-based applications; they are often marketed as "companion devices", i.e., to augment a user's other computer access.
