A network topology is the physical and logical arrangement of nodes and connection in a network Physical topology describes the layout of devices and cables, and logical topology describes the way in which date is transmitted within the network Regardless of the physical layout.

1. DHAKA INTERNATIONAL UNIVERSITY
Department OF ENGLISH
Course Name: Fundamental of Computer
Course No: 0611-1105
Batch No: 54th Semester: 1st
01
Submitted To
Suman Ahmed Saikan
Lecturer
Department of CSE
Dhaka International University-DIU
Title : Computer Network Topology
Created By : Team CSK

2. Medha Sultana
Roll: 23
Team Captain
Of CSK
Jim
Roll: 01
Writing of assistant
Mostakim Nishat
Roll: 19
Assistant
Refatul
Roll: 24
Designer

3. Outline
1
Introduction
2
Topology Types
3
2P2 Topology
4
Start Topology
5
Ring Topology
6
Bus Topology
7
Tree Topology
8
9
Mesh Topology
Reference 02

4. INTRODUCITON
A network topology is the physical and logical arrangement of nodes and connection in a
network
Physical topology describes the layout of devices and cables, and logical topology describes
the way in which date is transmitted within the network
Regardless of the physical layout.
03
Fig 1: Network Topology

5. Topology Types
04
Fig 2: Computer Topology Types

6. Point to Point Topology
 Point-to-Point Topology is a type of topology that works on the functionality of the
sender and receiver. It is the simplest communication between two nodes, in which one
is the sender and the other one is the receiver. Point-to-Point provides high bandwidth
Sender Receiver
Fig 3: P2P Topology 05

7. Star Topology
 Star topology is a network topology in which each network component is physically connected to a
central node such as a router, hub or switch. In a star topology, the central hub acts like a server and
the connecting nodes act like clients.
Fig 4: Star Topology
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8. Star Topology Cont.…
Advantage:
1. Less expensive.
2. Easy to install and reconfiguration.
3. Robustness
Disadvantage:
1. Failure of central hub will effect the entire network.
2. Performance is based on the single concentrator i.e. hub.
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9. Ring Topology
A ring network is a network topology in which each node connects to exactly two other nodes,
forming a single continuous pathway for signals through each node – a ring.
Fig 5: Ring Topology 08

10. Ring Topology Cont.…
Advantage:
1. The data transmission is high-speed.
2. The possibility of collision is minimum in this type of topology.
3. Cheap to install and expand.
4. It is less costly than a star topology.
Disadvantage:
1. The failure of a single node in the network can cause the entire network to fail.
2. Troubleshooting is difficult in this topology.
3. Less secure.
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11. Bus Topology
Bus topology is a type of network topology in which all devices are connected to a single cable
called a "bus." This cable serves as a shared communication medium, allowing all devices on the
network to receive the same signal simultaneously.
Device 1 Device 2 Device 3
Device 4 Device 5
Fig 6: Bus Topology 10

12. BUS TOPOLOGY CONT…
Advantage:
1. Coaxial or twisted pair cables are mainly used.
2. The cost of the cable is less compared to other topologies.
3. Bus topology is familiar technology as installation and troubleshooting techniques are well known.
Disadvantage:
1. If the common cable fails, then the whole system will crash down.
2. Adding new devices to the network would slow down networks.
3. Security is very low.
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13. TREE TOPOLOGY
In a tree topology, there is one central node (the “trunk”), and each node is connected to the central
node through a single path. Nodes can be thought of as branches coming off of the trunk.
Fig 7: Tree Topology 12

14. TREE TOPOLOGY CONT…
Advantage:
1. It allows more devices to be attached to a single central hub thus it decreases the distance that is
traveled by the signal to come to the devices.
2. We can add new devices to the existing network.
3. Error detection and error correction are very easy in a tree topology.
Disadvantage:
1. If the central hub gets fails the entire system fails.
2. The cost is high because of the cabling.
3. If new devices are added, it becomes difficult to reconfigure.
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15. MESH TOPOLOGY
The mesh topology is a type of topology in which every device or computer is connected to every
other device. Each device not only sends its signals but also receives signals from other devices.
Fig 8: Mesh Topology
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16. MESH TOPOLOGY CONT…
Advantage:
1. Dedicated link ensure that each connection carry its own data load, eliminating the traffic problem.
2. Mesh topology is robust.
3. Provides privacy & security.
4. Fault identification and isolation is easy.
Disadvantage:
1. Huge amount of cabling and I/O ports required.
2. Installation and reconnection is difficult.
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17. REFERENCES
 https://www.computerhope.com/jargon/b/bustopol.htm
 https://www.geeksforgeeks.org/types-of-network-topology/
 https://www.pngwing.com/
 https://www.techtarget.com/searchnetworking/definition/network-topology
 https://www.javatpoint.com/computer-network-topologies
 https://www.tutorialspoint.com/data_communication_computer_network/
 https://www.canva.com/
 https://www.shiksha.com/online-courses/different-types-of-network-topology/
 https://www.dnsstuff.com/what-is-network-topology
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18. Thanks