Current applications' requirements are always more demanding, especially in terms of network latency. Just think about self-driving cars, VR/AR, or Industry 4.0. The classic Cloud computing approach cannot satisfy this fundamental capability due to the network distance of the data centers from the devices. But what if we could move these data centers nearer? Obviously, we cannot, but we can gather small servers together in a geographic domain to drastically reduce communication latencies. Today, with single board computers (e.g. Raspberry Pi) we can easily construct clusters of Fog nodes and offload there the computation. Fog Computing is a term that comprehends all of these kinds of computation, Edge Computing is very similar but emphasizes more the idea of the computation moved to the Edge network (e.g. routers or antennas).