Microsoft defines the Pocket PC as a handheld device that allows users to view and store email, organize contacts and appointments, play multimedia files and games, exchange text messages, and do various other tasks. Technically, the Pocket PC is a specification for a handheld computer that runs the Microsoft Windows Mobile operating system. Presented in this category are sites that provide information, resources, reviews, opinions, and updates about the Pocket PC or other handheld devices that bear the "Pocket PC" label.