(a) Write a brief history of the internet. How to access to the internet? (b) Define computer network. State some merits and demerits of a computer…

(a) Write a brief history of the internet. How to access to the internet?

(b) Define computer network. State some merits and demerits of a computer network.

(c) Briefly describe three devices using which different LANs can be connected.

(d) List some various types of Topologies. What are the factors to choose a topology?