Computer Network notes, Lecture notes of Computer science

An introduction to computer networks and their types. It explains the different types of networks such as LAN, MAN, and WAN, and their characteristics. It also covers the types of transmission and communication protocols used in computer networks. the importance of data transmission and the need for protection of data during transmission. It also explains the different types of communication channels and their characteristics. The document concludes with a discussion on the standards followed in communication networks.