Unit 1 Types of Network Learning Objectives: 5.1.1 Understand why computers are connected in a network 5.1.2 Understand the different types of networks.

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Unit 1 Types of Network Learning Objectives: Understand why computers are connected in a network Understand the different types of networks Understand characteristics of network topologies

What is a Computer Network? As a class come up with a list of activities that computer networks make possible. A network is a group of computers and other devices connected together. Activities: Now complete slide 2 of your Networks workbook.

Types of Network Computer networks are categorised according to their geographic coverage. Type of NetworkDescriptionExample Local Area Network (LAN) Connect computers over a building or a site. School network Wide Area Network (WAN) Connect computers over a larger area such as a town, city or country. The internet (a global computer network) Personal Area Network (PAN) Connect the computers or devices used by one person. Bluetooth headset connected to a mobile phone Now complete slide 3 of your Networks workbook.

Network Topologies Now complete slides 4-7 of your Networks workbook.

Network Topologies The term topology refers to the way in which devices are connected to a network. The table below summarises the different network topologies. Now complete slide 3 of your Networks workbook. TopologyDescription Bus Single main cable to which computers are connected. RingAll computers are connected in a circle. Star All computers have their own link to a central computer. Mesh Where each computer can connect to other computers.