UNIT 10 COMMUNICATION TECHNOLOGY
TASK 1
TOPOLOGIES
WAN AND LAN
WAN (WIDE AREA NETWORK)
WAN is also known as wide area network, it covers a large region or country. A wan consist of two or more local area network. Computer are connected to a modem and the rooter is then connected to a telephone connection which is the PSN (PUBLIC SWITCH NETWORK).
LAN (LOCAL AREA NETWORK)
LAN (local area network) allows a computer to connect to a network to gain access to internet. The network can be accessed only within a certain range using a network media. Each computer in a LAN has its own Central processing unit with which it allows programs to run.
TOPOLOGY
A network topology is the order …show more content…
All computers on a bus network are joined to each other allowing them to gain connection but not to share all data as all data are saved on different computers and the computer cannot access the same data from one another but the saved data will only be able to be accessed on the computer used and not any other one on the bus topology.

BUS NETWORK TOPOLOGY

Ring Topology
A ring topology is connected to different computers forming a circle. A ring topology is connected to each computer and allows access of internet and the sending and receiving of files through the ring topology. If a computer on the ring topology fails to work all the computer will not work as the connection works in a circular way if it is not passed none of the computers are able to send or receive files from one another.

Ring topology
Data moves through the nodes in a circular way.

MESH
A mesh topology, where each network is connected to each other, allowing data flow within the topology. If a computer on the topology does not work the other computer on the network will function normally with no problem.
The mesh topology is mostly used for wireless networks. MESH