A Pocket PC is a class of personal digital assistant (PDA) that runs the Windows Mobile operating system, which is based on Windows CE/Windows Embedded Compact, and that has some of the abilities of modern desktop PCs. The name was introduced by Microsoft in 2000 as a rebranding of the Palm-size PC category and was marketed until 2008. Some of these devices were smartphones, which were known as Pocket PC Phone Edition. The Windows Smartphone is another Windows CE based platform for non-touch, smaller and non-PDA devices.