What is Bus Topology in Computer Network? Diagram, Examples, & Uses!

In this blog post, we will explain in detail about what is bus topology and its diagram, examples and uses; involving with advantages and disadvantages of bus topology in networking with ease. This is ultimate article over the internet; make sure that at the end of this post; you will definitely fully aware about what is bus topology without any hassle.

What is Bus Topology?

Definition: A bus topology is also known as “Line Topology“, and it is used in the Local Area Network. In bus topology network all devices (Computers, printers etc) are linked with using one backbone wire like as coaxial cable, RJ-45, STP or UTP.

Bus Topology Diagram

bus topology

In bus topology, data flows with bidirectional (both side). If, sometime backbone wire gets damage then whole network will be halt. It is main drawback of this topology.

Also Read: What is Personal Area Network (PAN)? Diagram, Types, and Examples!!

Bus Topology Tutorial Headlines:

In this section, we will show you all headlines about this entire article; you can check them as your choice; below shown all:

  1. What is Bus Topology?
  2. Bus Topology Diagram
  3. Bus Topology in Computer Network
  4. Advantages of Bus Topology
  5. Disadvantages of Bus Topology
  6. Examples of Bus Topology in Real Life
  7. Uses of Bus Topology
  8. How to Expand Cable
  9. FAQs (Frequently Asked Questions)
  • What is bus topology and its diagram?
  • Why is it called a bus topology?
  • What is bus topology with examples?
  • Who invented bus topology?
  • What is the speed of bus topology?
  • Where bus topology is used in real life?
  • What are the examples of bus topology in daily life?
  • What are features of bus topology?
  • What are the advantages and disadvantages of bus topology?

Let’s Get Started!!

Bus Topology in Computer Network

In computer network, several computers are attached with each other through communication medium (Wired or wireless). These linked computers over the network are called “Nodes”. These computers which are linked in the network can share different resources like as files, printers, FAX machine etc.

Bus Topology is used in the computer networks, in which all computers are linked to each other through one cable. This cable is known as “Backbone of Network”. Mostly Ethernet cable is implemented to connect multiple nodes in the Bus Topology. In Bus Topology, all information passes from first node to last node over the network.

What are the Requirements of Bus Topology?

Here are the key requirements and characteristics of bus topology:

Also Read: What is Tree Topology? Examples, Types, Uses, and Applications!

Broadcasting: All data is sent to all nodes in the network.

Shared Medium: All devices are capable to share the similar resources with regarding a communication like as the bus.

Half-Duplex: Nodes can just receive or transmit data – they are unable to do both simultaneously.

Cost-Effectiveness: Bus topology is relatively inexpensive to implement compared to other topologies, requiring less cabling and infrastructure.

Simple Installation: Bus topology is easy to install and requires less planning and configuration compared to more complex network topologies.

Limited Privacy: As all devices receive the transmitted data, bus topology provides the limited privacy.

Small Networks: Bus topology is well-suited for small networks with a limited number of devices, such as small office networks, classrooms, or home networks.

Cable Length: Bus topology requires less cable length than a star topology.

Ease of Expansion: Bus topology can be easily expanded by joining two cables together.

How Does Bus Topology Work?

Bus topology involves connecting devices to a single communication channel, or “bus,” which serves as the shared pathway for data transmission. Devices are linked to the bus through drop lines or taps. When a device sends data, it travels along the bus, and all connected devices receive the signal. Collision detection mechanisms, like CSMA/CD, manage simultaneous transmissions.

Terminators at both ends prevent signal reflection. While simple to install, bus topology’s scalability is limited, and the failure of the central bus disrupts the entire network. This broadcast communication method is less common in modern networks due to its performance constraints.

Components of Bus Network

The main components of a bus network, as following them:

Also Read: What is Ring Topology? Diagram, Uses, and Examples!

Bus (Communication Channel): The central component of a bus network is the communication channel or bus itself. It is a single cable that runs throughout the network, connecting all devices.

Drop Lines: Drop lines are the connections that branch out from the main bus and lead to individual devices. These lines connect the devices to the central bus, allowing them to send and receive data.

Taps or Connectors: Taps or connectors are used to physically connect devices to the bus. They provide the interface through which devices can access the shared communication medium.

Terminators: Terminators are resistors placed at both ends of the bus to absorb signals and prevent them from bouncing back and causing interference. Proper termination is crucial to maintain signal integrity and prevent signal reflections.

Devices (Nodes): Devices in a bus network can be computers, printers, servers, or any other networked equipment. These devices are connected to the bus through drop lines and taps.

Passive Devices: Most devices in a bus network are passive, meaning they don’t participate in the network’s management or control. They simply send and receive data.

Active Devices: Active devices, such as repeaters or hubs, may be used to extend the length of the bus or boost signal strength. These devices play a more active role in maintaining the network.

Collision Detection Mechanism: Bus networks often use collision detection mechanisms, such as CSMA/CD (Carrier Sense Multiple Access with Collision Detection), to manage simultaneous data transmissions and avoid collisions.

Examples of Bus Topology in Real Life

Bus topology is used in different applications in real life such as –

Applications & Uses of Bus Topology are :-

Share landline telephone connection

Let’s example, you have three story building and you need to make landline connection on each floor. Then you have two options, first is apply three landline connections. But this way is more expensive because in which to need separate configuration setup for every landline connection.

Second way is to use bus topology system; it means each floor’s telephone is connected to main landline cable through telephone sockets. 

Ethernet Networks

Ethernet network is best alternative to LAN network, and it has high speed (10 million bits per second) to transmit and receive data compare to Local Area Network (LAN).

Sharing Resources

Various I/O devices such as printers, FAX machine, scanner etc can be attached in office with using of bus topology network.

How to Expand Cable

With the help of “Barrel of Tip” connector, can be connected two small part of cable, and expand the cable.

“Repeater” device also helps to connect two cables, and it increases the signal to reach its target node.

Alternatives to Bus Topology

Here are some common alternatives to bus topology:

Star Topology: In a star topology, each device is connected to a central hub, enabling easy management and troubleshooting. It is commonly used in modern Ethernet networks.

Ring Topology: In a ring topology, each device is connected to two other devices, forming a circular network. Data travels in one direction, and it is often used in local area networks (LANs).

Mesh Topology: In a mesh topology, every device is connected to every other device, providing redundant paths for data transmission. It is commonly found in wireless networks and large-scale industrial applications.

Tree Topology: A tree topology is a hierarchical version of bus and star topologies, often used in university campuses, laboratories, and organizations. It consists of several star topologies connected by a bus backbone.

FAQs (Frequently Asked Questions)

What is bus topology and its diagram?

A bus topology is going to use for ‘Local Area Network’ whereas all nodes are linked along with a single cable, and this cable is known as the ‘Backbone’ because if it cable is broken then entire network will be failed. You can check bus topology diagram above in this article.

Why is it called a bus topology?

Bus topology is a LAN network topology where all devices (Computers, printers etc.) are attached to main cable or link as bus form, so it is called the bus topology.

What is bus topology with examples?

A bus topology is also known as ‘Line Topology’ because here all devices are attached by one central RJ-45 network cable or coaxial cable over the network. For example is to connect two floors via single line.

Who invented bus topology?

Bus topology is invented by Robert Metcalfe and his associates in 1972.

What is the speed of bus topology?

The information flows via the cable in both directions at an approximate speed of 10/100 Mbps.

Where bus topology is used in real life?

The bus topology is going to use in a LAN network to make connection with different kinds of nodes to a specific cable like as coaxial cable/RJ-45 cable. A bus topology can be used in a small office to attach various I/O devices such as printers, FAX machine, scanner etc. with a single cable; then anyone can get access them on their workstation.

What are the examples of bus topology in daily life?

In this article, already we have been shown many examples of bus topology; and where you can use it, you can check them.

What are features of bus topology?

  • You can easily to make connection with other devices of network such as hub, switch, router etc.
  • Easy to scale up
  • It is more comfortable for a small region
  • It has no limitation to connect number of nodes to the network, but increased number of linked nodes can degrade the performance of the network.

What are the advantages and disadvantages of bus topology?

A bus topology has many pros and cons, and they are already covered in this post; you can follow it.

Final Remarks

Now, i hope that you have been fully educated about what is bus topology and its diagram, examples and uses; involving with advantages and disadvantages of bus topology in networking with ease. If this article is valuable for you, then please share it along with your friends, family members or relatives over social media platforms like as Facebook, Instagram, Linked In, Twitter, and more.

Also Read: Application Layer in OSI Model: Functions, Protocols, Examples, and Services!!

If you have any experience, tips, tricks, or query regarding this issue? You can drop a comment!

Happy Learning!!

Leave a Reply

Your email address will not be published. Required fields are marked *