Difference between Network OS and Distributed OS

In this topic we shall see the difference between Network Operating System and Distributed Operating System. The main difference between these two operating systems (Network Operating System and Distributed Operating System) is that in network operating system each node or system can have its own operating system on the other hand in distribute operating system each node or system have same operating system which is opposite to the network operating system. The difference Between Network Operating System and Distributed Operating System are given below: 

What is Network OS?

A Network Operating System (NOS) is an operating system that is expected to support networking functionalities. This enables to connect several computers and to share many resources, for instance, files, applications, and printers. Although each computer works self-contained is can communicate with other users in the network through the NOS.

Advantages of Network OS:

• Resource Sharing: Allows for file, application, & device ‘texting’ among the multiple devices that are connected in the network.
• Centralized Control: It has the capacity to control and manage all user accounts, data and security in that central point making it easier to enforce certain policies.
• Scalability: Network OS is also scalable that means it can support as many devices as possible with connection in the network without causing the disruption in the services.
• Security: Brings about better security as there shall be user management and right access all in one place.

Disadvantages of Network OS:

• Cost: Operating and maintaining a network OS is costly and this is usually felt by small businesses.
• Complex Setup: Handling and defining the network services may be a challenging task and therefore it may need technical persons.
• Dependency on Central Server: The biggest disadvantage is that if something happens to the central server then the whole network goes down.

What is Distributed OS?

A Distributed Operating System (DOS) can thus be defined as an operating system that is responsible for coordinating the computers or nodes that are connected and operates in cooperation like a single large machine. Being different from a network OS, where every connected computer operates as an individual OS, a distributed OS unifies all computers and they work together.

Advantages of Distributed OS:

• Resource Utilization: Ensures resource utilization at the various nodes is made in an optimal manner thus enhancing its performance.
• Transparency: Offers centralized access, that is the users are not aware that resources are physically located on different machines.
• Fault Tolerance: In the case of one node not functioning, it relegates its tasks to other active nodes, hence providing a solution to the system’s issues.The approach minimizes the risk of facing too many problems at once since the failed node has its tasks taken over by other working nodes.
• Scalability: High system scalability because nodes can easily be integrated into the said system.

Disadvantages of Distributed OS:

• Complexity: Managing and coordinating many nodes can be quite cumbersome and this may need the use of many algorithms.
• Network Dependency: Architecture Provides the following Two significant characteristics A dependent on a reliable network; Many problems with the network can lead to system failure.
• Debugging and Testing: Such problems or concerns can be a little complex when viewed from the perspective of distributed resources and processes.

Conclusion

To sum up, while deciding between Network Operating Systems and Distributed Operating Systems, one has to know that both these operating systems are used for managing network resources, but their purpose is diverse. A Network OS centers its operations on the specific devices of the network and sharing of resources while a Distributed OS coordinates the whole network as a single, cohesive entity that is more transparent and efficient in resource use. Generally, the choice is between the two depends on the need of the organization in terms of scalability, fault tolerance and resource sharing among others.