Distributed Computing

National Institute Of Science & Technology

DISTRIBUTED COMPUTING DISTRIBUTED COMPUTING

Under the guidance of Mr. Indraneel Mukhopadhyaya By Subrata kumar Jena Subrata Kumar Jena

IT200118226 [1]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING INTRODUCTION Distributed computing involves computing performed among multiple network-connected computers.

Distributed system is a collection of individual computers

Subrata Kumar Jena

[2]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING WHY DISTRIBUTED COMPUTING? Economics- distributed systems allow the pooling of resources. Reliability- distributed system allow replication of resources .

The Internet has become a universal platform for distributed computing.

Subrata Kumar Jena

[3]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING INTER PROCESS COMMUNICATION In distributed computing two or more process engage in IPC. Different IPC program Interface • • •

Connect Send Disconnect -

Subrata Kumar Jena

(Sender address, receiver address) (receiver , message) (Connection identifier,for connection-oriented protocols)

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National Institute Of Science & Technology

DISTRIBUTED COMPUTING DISTRIBUTED COMPUTING PARADIGMS Paradigm means a pattern, example, or model.

Paradigms for distributed applications Message passing : Appropriate paradigm for network services. Client server : Provides an efficient abstraction for the delivery of network services. Peer to peer :The participating processes play equal roles with equivalent capabilities and responsibilities Subrata Kumar Jena

[5]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING INTERNET APPLICATIONS

The world wide web (www) Hypertext mark up language(html) The extensible mark up laguage(xml) Hyper text transfer protocol(http) Common gate way interface(cgi)

Subrata Kumar Jena

[6]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING CORBA A standard architecture for a distributed object system. Allow distributed objects to interoperate in a heterogeneous environment. A rich set of protocols.

Subrata Kumar Jena

[7]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING CORBA OBJECT SERVICE Naming service - (Maintains a database of names) Time service - (A service for time related events) Event service - (For event synchronization) Logging service - (For event logging) Security service - (For security management)

Subrata Kumar Jena

[8]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING RMI Object oriented implementation of the remote procedure. API for java programs. Java RMI architecture-

• •

client side architecture server side architecture

Subrata Kumar Jena

[9]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING INTERNET APPLICATIONS Servlet-A server side program. Applets-A java program loaded by a browser. Simple object access protocol-A protocol that incorporates the Distributed objects paradigm.

Subrata Kumar Jena

[10]

National Institute Of Science & Technology

DISTRIBUTED COMPUTING

THANK YOU

Subrata Kumar Jena

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