Cloud Computing

2010 1st International Conference on Parallel, Distributed and Grid Computing (PDGC - 2010)

Cloud Computing: New challenge to the entire computer industry
Peeyush Mathur Assistant Professor, Department of Computer Engineering Sobhasaria Engineering College, Sikar peeyush14_mathur@yahoo.com Nikhil Nishchal Sobhasaria Engineering College, Sikar nikhil.nishchal007@gmail.com

Abstract
Cloudcomputing is a way of computing, via the Internet, that broadly shares computer resources instead of using software or storage on a local PC. Cloud computing is an outgrowth of the ease-ofaccess to remote computing sites provided by the Internet. Instead of installing a suite of software for each computer, we'd only have to load one application. That application would allow workers to log into aWeb-based service which hosts all the programs the user would need for his or her job. Remote machines owned by another company would run everything from e-mail to word processing to complex data analysis programs. It's called cloud computing, and it could change the entire computer industry. In a cloud computing system, there's a significant workload shift. Local computers no longer have to do allthe heavy lifting when it comes to running applications. The network of computers that make up the cloud handles them instead. Hardware and software demands on the user's side decrease. The only thing the user's computer needs to be able to run is the cloud computing systems interface software, which can be as simple as a Web browser, and the cloud's network takes care of the rest.

CLOUD: Theterm cloud is used as
a metaphor for the Internet, based on how the Internet is depicted in computer network diagrams and is an abstraction for the complex infrastructure it conceals.

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COMPUTING: The broader term of
“Computing” encompasses: Computation Coordination logic Storage

Figure. 1. Cloud Computing The term Cloud Computing means that you receive IT processing as a service ratherthan as a product or software. The easiest way to visualize this is to compare to electricity: local computing is comparable to everyone owning a mechanical generator to produce their own electricity. Cloud computing is about centralizing the computing activity, similar to producing electricity in power plants and distributing it via grids. Cloud computing is broken down into three segments:"Applications" , "Platforms," and "Infrastructure". Each segment serves a different purpose and offers different products for businesses and individuals around the world. A central server administers the system, monitoring traffic and client demands to ensure everything runs smoothly. It follows a set of rules called protocols and uses a special kind of software called middleware.

1. Introduction Andevolution
Cloud computing is an emerging computing technology that uses the internet and central remote servers to maintain data and applications. This technology allows for much more efficient computing by centralizing storage, memory, processing and bandwidth.

Proceedings of the 1st International Conference on Parallel, Distributed and Grid Computing (PDGC-2010) 978-1-4244-7674-9/10/$26.00©2010 IEEE

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and simplifying maintenance and support. Key e characteristics include:[7] Netw work-based access to, and management of, commer rcially available (i.e., not custom) software Activiti that are managed ies from central locations rather th at each customer's han site, enabling customers to access applications remotely via the Web t • Application delivery that typically is closer toa one-to-many mo odel (single instance, multi-tenant architectu than to a one-toure) one model, including architecture, pricing, partnering, and d management characteristics. • Centralized feature updating, which obviates the need for downloadable patches d and upgrades.[1] Figure. 2. Evolution Cloud Com mputing 2.1.3 Platform

2. Architecture of cloud comp puting
2.1 Cloud Computing Layers...