Performance a particular application is run on a

Performance criteria in Distributed operating system
If we use distributed operating systems, its performance should be identical to the centralized system. When a particular application is run on a distributed system, its overall performance should be better than or equal to running the same application on a single processor system. Design fundamentals to enhance performance: batch if possible, cache whenever possible, minimize copying of data and minimize network traffic.Heterogeneity in distributed operating system
environmentDistributed operating systems with odd assets have distinct sets of hardware and software connected to each other. Heterogeneous distributed systems provide the flexibility to their users of different computer platform. Some types of data translation are crucial for interaction between two incompatible nodes in a heterogeneous distributed system. Data translation can be done on behalf of the sender or on the receiver side.Security issues in Distributed operating
system environment

Many of the information and resources that are
made available and maintained in distributed systems have a higher internal
value for their users. Therefore their security is the most important issue in
the distributed operating system. Security is self-confidence that the integrity
of a system and its data will be preserved. Different resources of computer
systems must be protected from destruction and unauthorized access. Protection
refers to a mechanism for controlling the access of programs, processes or
users to the resources. Distributed system environment should give users the
privilege. A privilege is the right to access the resources in distributed
environment. Privileges can be granted
(given) to the user when mandatory and can be revoked (taken back). Different
resources in the distributed system can be used by different users with
different privileges, which are read, written and executed. These privileges
can be given in a single or group, such as

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