Differentiate between switch and router

Switch:

1. The switch can not send data out out to internet, or across a WAN. 
2. Switch can handle only similar type of network or toplogy. 
3. Switch has simple software to handle network activities. 
4. The switch learns the MAC address of each computer. 
5. Switch just used in LANs. 

Router:

1. The router is a device which is smart enough to route data from the LAN to the internet, or to your ISP, or to your WAN or even to another LAN. 
2. Router can manage several network or topologies. 
3. A router has additional smart software with security features. 
4. Router concerned with IP address instead of MAC address. 
5. High speed routers can serve as a part of internet of back bon.