Network Topology-ict

Network Topology

Network Topology refer to the layout of the computers and devices in a communication network - Layout of the network

Network Topology • There are 3 common network topologies: 1. Bus Network Topology 2. Star Network Topology 3. Ring Network Topology

BUS NETWORK TOPOLOGY Node (eg: computer)

Cable

Node (eg: printer)

RING NETWORK TOPOLOGY Node(eg:computer)

Cable

Node (eg: printer)

STAR NETWORK TOPOLOGY Node (eg:computer)

HUB

Cable

GROUP ACTIVITY G1:

DESCRIBE THE CHARACTERISTICS OF BUS NETWORK TOPOLOGY

G2:

DESCRIBE THE CHARACTERISTICS OF RING NETWORK TOPOLOGY

G3:

DESCRIBE THE CHARACTERISTICS OF STAR NETWORK TOPOLOGY

BUS NETWORK 1. Consist of a single central cable, to which all computer and other devices connected. 2. The BUS is the physical cable that connected the computers and other devices 3. The bus in a bus network transmit data, instruction and information in both direction. 4. Suitable for office and factory network

RING NETWORK 1. In ring network, each devices is connected to two other devices, forming a ring. 2. There is no central file server of computer 3. Data transmit on a ring network travels from one device to device around entire ring in one direction 4. Data that passed is examined by the node to see if it is the address. if not data passed to the next node until reach its destination

STAR NETWORK 1. All of the computer and devices (nodes) on the network connected to a central devices, thus forming a star 2. The central device that provides a common connection point for nodes on the network often called hub. 3. All data that transfer from one node to another passes through the hub 4. Hub located at the middle of the network

Conclusion

Next Lesson Advantages and disadvantages of the three types of network topology. Differences between the three types of network topology.

Reference Books Discovering Computers 2006, A Gateway to Information. Complete Shelly Cashman series,2005 Computers Tool for an Information Age, 4th Edition Computer Essentials (Complete Edition).

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