A cloudlet is a mobility-enhanced small-scale cloud datacenter that is located at the edge of the Internet. Cloudlets represent the middle tier of a 3-tier hierarchy: mobile device - cloudlet - cloud. Cloudlets aim to support mobile applications that are both resource-intensive and interactive. As a result, it is primarily used as a key element in technologies which require extensive transmission of digital information, electric digital data processing, pictorial communication, etc. The application areas include augmented reality systems, cloud games, automobiles, safety devices, animations, etc.