Mobility is a term used in computer networking to describe the scalability and exchangeability of a device or service within a given context. It refers to being able to use existing or new technology and services with minimal additional effort or disruption. In the context of mobile computing, this includes being able to quickly and securely switch between different types of physical wireless networks (such as WiFi, Cellular, Bluetooth, etc.), connect securely with varying service providers, and having access to cloud-based services.