• सुखार्थी त्यजते विद्यं विध्यार्थी त्यजते सुखम्सु sखर्थीन: कुतॊ विद्या कुतॊ विध्यार्थीन: सुखम् ||
  • “Luxury people leave knowledge, but a student leaves Luxury No knowledge for one who seeks Luxury, No luxury for student”
  • न चोर हार्यं न च राज हार्यं न भात्रू भाज्यं न च भारकारि |व्ययं कृते वर्धत एव नित्यं विद्याधनं सर्वधनप्रधानम ||
  • Cannot be snatched away by thief, cannot be snatched away by king, Cannot be divided among brothers, Not heavy either If spent daily, it always keeps growing. The wealth of knowledge is the precious of wealth of all”

Star Topology

Star Topology

In  a star topology, each device has a dedicated point-to-point link with only to a central controller called hub or switch.

The devices are not linked to one another. Star topology does not allow direct traffic between devices the devices.

The controller (switch or hub)  acts as an exchange: If one device wants to send data to another, it is sent through the controller.

The star topology is used to create local-area networks (LANs), and High-speed LANs 

Advantages of star topology

A star topology is less expensive than a mesh topology.

As each device needs only one link and one I/O port to connect it to any number of other devices

 Easy to install and reconfigure.

Less cabling needs to be housed,

Additions, deletions or moves  involve only one connection, between that device and the hub.

Robust as If one link fails, only that link is affected. All other links remain active.

Easy fault identification.

Disadvantages of Star topology

One big disadvantage of a star topology is the dependency of the whole topology on one single point, the hub. If the hub goes down, the whole system is dead.

 Although a star requires far less cable than a mesh, each node must be linked to a central hub. Often more cabling is required in a star than in some other topologies such as ring or bus.

Related Question:

Question:    Explain the working of star topology. Explain its advantages and disadvantages.   [5 marks]