(第5空)Fog computing is a mid-layer between cloud, data centers and IoT devices/sensors. It provides services of ( 71 ) along with storage and networking at the proximity of the IoT devices/sensors. The fog computing concept is derived from ( ) computing. Edge computing promises to bring data computation closer to the data-origin. Edge devices, in Edge computing, aren’t able to support ( 73 ) applications in IoT because of their limited resources, resulting in rcsource-contention and increased ( ). It assimilates edge devices and cloud resciurces to overcome ( ) associated with Edge computing.