converts digital data (used by computers) into analogue signals (used by telephone line) and back again. This is needed to connect to the internet.
1 of 5
router
connects the network devices to the internet and sends data packets to the computers reading the IP addresses.
2 of 5
switch
connects all the devices together, using Ethernet cables, in a star topology. the switch can identity every connected devices and send out data packet to them using MAC addresses.
3 of 5
hub
can do the work of a switch but does not use addresses it amplifies the signal
4 of 5
network interface controller (NIC)
provides connection in both Ethernet and wireless networks inside all devices. all are assigned unique MAC and IP addresses
5 of 5
Other cards in this set
Card 2
Front
connects the network devices to the internet and sends data packets to the computers reading the IP addresses.
Back
router
Card 3
Front
connects all the devices together, using Ethernet cables, in a star topology. the switch can identity every connected devices and send out data packet to them using MAC addresses.
Back
Card 4
Front
can do the work of a switch but does not use addresses it amplifies the signal
Back
Card 5
Front
provides connection in both Ethernet and wireless networks inside all devices. all are assigned unique MAC and IP addresses
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