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Best answer I could find by googling or even wikipedia got some great answers
Repeater is a network device which is use to regenerate packet(data) out of 100m distance of server.
Bridge: it is also a network device which is use to connect multiple Pc in the network. it is use in small or LANs Network. It work on Layer 2 or 3(some times)of OSI Model.it is connect pc through HUB.
Router: Router is electronic machine and network device which is work as gateway.Router connect multiple Network or wireless network between two office.it base on Layer 3 of OSI Model.
Posted by vernon
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