Grid” computing has emerged as an important new field, distinguished from conventional distributed computing by its focus on large-scale resource sharing, innovative applications, and, in some cases, high-performance orientation . Today’s science and engineering are as much based on computation, data analysis and collaborations on the efforts of individual researches .But even with improving computing power, data storage and communication, computational resources are unable to keep up with the demands. With the computer network becoming cheaper and more powerful, a new computing paradigm, term ‘grid’ is poised to meet the challenging demands of the 21st century science. The attraction of grid computing is that it provides the opportunity to access greater computing power at a fraction of the current cost of technology.

INTRODUCTION

Over last ten years the web has dramatically changed how people and companies work. Today, the internet itself is changing to become a computing plat form called ‘the Grid’. It means that, when we boot up our PCs or some other internet enabled devices, you will have access to not just our desktop resources but also to a much more powerful virtual computer, which is an aggregation of computing power, storage, application, data , I/O devices and so on, distributed all over the Internet. The attraction of grid computing is that it provides the opportunity to access greater computing power at a fraction of the current cost of technology.

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