Question
ompare a Distributed Operating System and a Network Operating System with respect to:
Resource sharing
Transparency
Scalability
Fault tolerance
Suggest the most suitable operating system model for this organization with proper justification.
Answer :
Word Count : 1518
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Skip in 10
A Distributed Operating System (DOS) and a Network Operating System (NOS) are two important operating system models used to manage computers, users, applications, and resources in a networked environment. Both models enable computers to communicate and share resources, but they differ significantly in their architecture, degree of integration, transparency, scalability, and handling of failures. The choice between them depends on the requirements, size, structure, security needs, and resource-sharing characteristics of an organization. A Distributed Operating System is designed to manage a collection of independent computers and make them appear to users as a single integrated computing system. The individual computers may have their own processors and memory, but the operating system coordinates their activities and manages distributed resources collectively. Examples of concepts associated with distributed operating systems include distributed process management, distributed file systems, load balancing, and transparent access to remote resources. The main objective is to provide a unified environment in which users do not need to know where a particular resource or process is physically located. A Network Operating System, on the other hand, is designed to provide services and facilitate communication among computers connected through a network. Each computer generally retains its own operating system and identity. Users are aware that they are accessing resources located on different machines. Common examples include Windows Server, Linux server systems, and UNIX-based network servers. In an NOS environment, servers provide services such as file sharing, printer sharing, authentication, application hosting, backup, and network management, while client computers access these services through the network. With respect to resource sharing, a Distributed Operating System provides a high degree of integrated resource sharing. Resources such as files, storage, processing power, printers, and applications can be distributed among different machines. The operating system coordinates these resources and attempts to make them available as though they belong to one system. For example, if a process requires additional processing capacity, the distributed system may execute part of the workload on another computer. Similarly, a distributed file system can allow files stored on different machines to be accessed through a common interface. Resource allocation can therefore
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