Computer Networks Damian Gordon. When we hook up computers together using data communication facilities, we call this a computer network. Computer Networks.

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Presentation transcript:

Computer Networks Damian Gordon

When we hook up computers together using data communication facilities, we call this a computer network. Computer Networks

When we hook up computers together using data communication facilities, we call this a computer network. Computer Networks

When we hook up computers together using data communication facilities, we call this a computer network. Computer Networks

When we hook up computers together using data communication facilities, we call this a computer network. Computer Networks

When we hook up computers together using data communication facilities, we call this a computer network. Computer Networks

We can classify networks by the geographical distance they cover: – Local Area Network (LAN) – Metropolitan Area Network (MAN) – Wide Area Network (WAN) – Wireless Local Area Network (WLAN) Network Types

A Local Area Network (LAN) is a network within a single building or campus, e.g. an office, a college, or a warehouse. It is typically owned and used by a single organisation. Typically it’s a cluster of PCs or workstations. A LAN can be linked to larger networks via a bridge or gateway. Network Types

A Metropolitan Area Network (MAN) is a network that covers a full street, a neighbourhood, or even a city, as long as it doesn’t exceed a circumference of 100 kilometres. The MAN is often owned and run as a public utility, and are typically configured as a Ring Topology. Network Types

A Wide Area Network (WAN) is a network that a country, or connects countries. The WAN is often owned and run as a public utility, but telephone companies have WANs also. WANs can use anything for satellites to microwaves transmissions. The most common example of a WAN is the Internet, but there are other commercial WANs. Network Types

A Wireless Local Area Network (WLAN) is a wireless LAN. It works exactly the same as a normal LAN, but the technology means that the network uses a wireless protocol such as IEEE a, IEEE b, IEEE g, or IEEE n. Additionally (the mobile WiMAX standard) is available. Network Types

etc.