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Note for Cloud Computing - CC By KISHORE KUMAR REDDY

  • Cloud Computing - CC
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  • Computer Science Engineering
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Kishore Kumar Reddy
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Cloud Computing I ntroduction Cloud computing now is everywhere. In many cases, users are using the cloud without knowing they are using it. According to small and medium organizations will move to cloud computing because it will support fast access to their application and reduce the cost of infrastructure. The Cloud computing is not only a technical solution but also a business model that computing power can be sold and rented. Cloud computing is focused on delivering services. Organization data are being hosted in the cloud. The ownership of data is decreasing while agility and responsiveness are increasing. Organizations now are trying to avoid focusing on IT infrastructure. They need to focus on their business process to increase profitability. Therefore, the importance of cloud computing is increasing, becoming a huge market and receiving much attention from the academic and industrial communities. 1|Page Prepared by :Kishore JReddy

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UNIT1 Cloud Computing provides us a means by which we can access the applications as utilities, over the Internet. It allows us to create, configure, and customize applications online. What is Cloud? The term Cloud refers to a Network or Internet. In other words, we can say that Cloud is something, which is present at remote location. Cloud can provide services over network, i.e., on public networks or on private networks, i.e., WAN, LAN or VPN. Applications such as e-mail, web conferencing, customer relationship management (CRM), all run in cloud. What is Cloud Computing? Cloud Computing refers to manipulating, configuring, and accessing the applications online. It offers online data storage, infrastructure and application. We need not to install a piece of software on our local PC and this is how the cloud computing overcomes platform dependency issues. Hence, the Cloud Computing is making our business application mobile and collaborative. Def2: cloud computing is the delivery of computing services—servers, storage, databases, networking, software, analytics and more—over the Internet (―the cloud‖). Companies offering these computing services are called cloud providers 2|Page Prepared by :Kishore JReddy

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and typically charge for cloud computing services based on usage, similar to how you are billed for water or electricity at home. Ex: Yahoo, Gmail, Hotmail etc Cloud computing with an example Whenever you travel through a bus or train, you take a ticket for your destination and hold back to your seat till you reach your destination. Likewise other passengers also takes ticket and travel in the same bus with you and it hardly bothers you where they go. When your stop comes you get off the bus thanking the driver. Cloud computing is just like that bus, carrying data and information for different users and allows to use its service with minimal cost. Why Cloud Computing? With increase in computer and Mobile user‘s, data storage has become a priority in all fields. Large and small scale businesses today thrive on their data & they spent a huge amount of money to maintain this data. It requires a strong IT support and a storage hub. Not all businesses can afford high cost of in-house IT infrastructure and back up support services. For them Cloud Computing is a cheaper solution. Perhaps its efficiency in storing data, computation and less maintenance cost has succeeded to attract even bigger businesses as well. Cloud computing decreases the hardware and software demand from the user‘s side. The only thing that user must be able to run is the cloud computing systems interface software, which can be as simple as Web browser, and the Cloud network takes care of the rest. We all have experienced cloud computing at some instant of time, some of the popular cloud services we have used or we are still using are mail services like gmail, hotmail or yahoo etc. While accessing e-mail service our data is stored on cloud server and not on our computer. The technology and infrastructure behind the cloud is invisible. It is less important whether cloud services are based on HTTP, XML, Ruby, PHP or other specific technologies as far as it is user friendly and functional. An individual user can connect to cloud system from his/her own devices like desktop, laptop or mobile. 3|Page Prepared by :Kishore JReddy

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Cloud computing harnesses small business effectively having limited resources, it gives small businesses access to the technologies that previously were out of their reach. Cloud computing helps small businesses to convert their maintenance cost into profit. Common Location Independent Online Utility that is available Demand Cloud computing components is made of several element such as a) Clients b) Datacenter c) Distributed server Now each element plays a specific role in delivering the cloud function. a) CLIENTS Clients are the device that the end user interact to manage their information on cloud. They generally divide into 3 categories 1.MOBILE 2. THIN 3. THICK 1. MOBILE CLIENTS Mobile device include (PDA, SMARTPHONE, or IPHONE) 4|Page Prepared by :Kishore JReddy

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