Give the function of the following in data communication.
i) Repeater.
ii) Router.
iii) Terminal.
iv) Hub.

i) Repeater.
- This is a device that receives the data signal from one point of a network, cleans it to remove any noise, boots it, and then transmit it over to other points.
ii) Router.
- This is a device that is used to interlink different networks and forwards data packets from one point of a network to another.
iii) Terminal.
- This is the workstation or the computer from where data is sent and received.
iv) Hub.
- It connects computers on a network and transmit signals from one terminal to another on the same network.