A Pocket PC is a small, handheld device that combines the features of a personal computer with the portability of a mobile phone. It typically runs a version of the Windows Mobile operating system, allowing users to access applications, manage contacts, and browse the internet. Pocket PCs often include touch screens and stylus pens for easy navigation. These devices were popular in the early 2000s, serving as a bridge between smartphones and traditional PDAs. While they have largely been replaced by modern smartphones, the concept of a compact, multifunctional device continues to influence today's mobile technology.