Introduction to Computer Networks Objectives: Define the functions of a computer network. Identify the types fo networks. Compare and contrast between different netowork topologies. **Distinguish between unicast, multicast and broadcast transmissions. What is a Computer Network? A set of computing devices connected using data links which can allow for sharing of resources. Examples: Peer to peer sharing Printer sharing File sharing Web page sharing Types of Networks: PAN Personal Area Network. Short distance within personal workspace. Wired and wireless connections. WAN Wide Area Network. Distance can span large geo distances. Wired and wireless connections LAN Local Area Network Distance can span offices, buildings and neighbouring buildings Wired and wireless connections
