I went ahead and marked this as solved since you deleted the content. For anyone else that is wondering though, a router is basically a device that can intelligently decide where traffic goes across multiple subnets, where as a switch and hub both just route traffic based on it's final destination address to a local port based on ARP information.
The difference between a switch and a hub, is that a hub will send the data to every port on the device, where as a switch, will have an ARP table with the mac-addresses and only send the traffic to the port that matches the destination address.
i am a student of diploma in electronics and telecomm
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electrical and electronics