A distribute systems is a piece of software that ensures that, a collection of independent computers that appears to its user as a single coherent systems. It is software systems in which components coordinate their actions by passing messages and located on networked computers communicate. Goal of the distributed system are connecting resources and user, distributed transparency, openness and scalability.
Distributed programming is the process of writing such programs which runs on distributed systems. Many alternatives for the message passing mechanism, and message queues for the distributed system. Components interact with each other in order to achieve a common goal. Computer program that runs on a distributed system is called a distributed program. An important goal and challenge of distributed systems is location transparency. Examples of distributed systems vary from SOA-based systems to massively multiplayer online games to peer-to-peer applications.
Accessibility Of Resources: In this system it must be support user end to remote end such as data files, scanner, printers etc. It is also cost minimizing with expensive sharing resources. It5 can be increase output because of multiple processors and information exchanges.
Transparency in Distribution: : In distribution system software can be hide some important information but main aim is make it user friendly. Must be Users and applications be able to access remote resources like local resources. Transparency is many types such as Location transparency, Access, Failure etc.
Openness: In this type of distributed system services are offer according to some standard rule which explain that the syntax and semantics. It is also called interface description languages which show interface between software components. It is machine independent. It can supports coordination between many OS and programming languages.
Scalability: This term shows about measuring scale and define dimensions with respect to size, area of distributions, and number of administrative organizations. This system gives best result when it scales up along these dimensions. It may be give negative affect when
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