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Type of Computer Network

 

LAN Local Area Network

The computers are geographically close together(that is, in the same building).

 

WAN Wide Area Network

The computers are farther apart and are connected by telephone lines or radio waves.

 

CAN Campus Area Networks

The computers are within a limited geographic area, such as a campus or military base.

 

MAN Metropolitan Area Networks

A data network designed for a town or city.

 

HAN Home Area Networks

A network contained within a user’s home that connects person’s digital devices.

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Type of Network

 

topology

The geometric arrangement of a computer system. Common topologies include a bus, star, and ring.

 

protocol

The protocol defines a common set of rules and signals that computers on the network use to communicate. One of the most popular protocols for LANs is called Ethernet. Another popular LAN protocol for PCs is the IBM token-ring network.

 

architecture

Networks can be broadly classified as using either a peer-to-peer or client/server architecture.

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Type of Network Topology (LAN)

 

Bus topology

All devices are connected to a central cable, called the bus or backbone. Bus networks are relatively inexpensive and easy to install for small networks. Ethernet systems use a bus topology.

 

Ring topolog

All devices are connected to one another in the shape of a closed loop, so that each device is connected directly to two other devices. Ring topologies are relatively expensive and difficult to install, but they offer high bandwidth and can span large distances.

 

Star topology

All devices are connected to a central hub. Star networks are relatively easy to install and manage, but bottlenecks can occur because all data must pass through the hub.

 

Tree topology

A tree topology combines characteristics of linear bus and star topologies. It consists of groups of star-configured workstations connected to a linear bus backbone cable.