Overview of Cloud Computing

In today's business applications, management has to embrace cloud computing for them to succeed in the highly competitive world. Cloud computing is the latest technology that allows provision and use of IT infrastructure, and applications which are readily available on the Internet. Cloud computing provides information over the web thus businesses will have no need for hardware or software on the consumer side. Cloud services are hosted on the Internet and businesses can pay to lease them according to the businesses usage. Cloud resources are a virtual form of storage, meaning companies comfortably use them without the trouble of systemic dependencies or constraints. Businesses are finding that cloud computing can be scaled dynamically

With each successive generation of computing technologies, the balance of computing power and economics shifts farther to the side of the line-of-business user, away from the centralized Information Technologies (IT) systems departments that have ruled companies for decades. IT Departments and those who lead them, the Chief Information Officers (CIOs) who have had exceptional power of the demand and supply of IT resources, are actively being challenged today by the shift towards abundant supply of computing power cloud computing makes available (Middleton, 2012).

Cloud computing has drastically reordered the economics of how every size and type of business uses software. For the large enterprise there is no longer the need to go through an extensive capital expense (CAPEX) budgeting process, often involving the board of directors of a business (Aljabre, 2012). Cloud computing software is often pad for through operating expense (OPEX) budgets, which shifts the control of its budgeting to the line-of-business managers or those managers and executives responsible for a given business unit. This dynamic alone has completely reordered the enterprise software market, as cloud-based applications can often be modified significantly faster than on-premise applications (Lin, Chen, 2012). As a result of this flexibility, enterprises, medium-size and small businesses are all relying on cloud-based applications to automate those process areas that had been expensive and

The topic of the cloud computing industry and security is broad with far reaching intricacies. Therefore, to narrow the subject, the definition of cloud computing as defined by the National Institute of Standards and Technology (NIST) (NIST Special Publication 800-145, 2011) will be used as the foundation for this study. The NIST adopted the (Mell & Grance, 2010) cloud computing definition in 2011. (Mell & Grance, (2010)) defined cloud computing as a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service-provider interaction (Mell & Grance, (2010)).

This report will be exploring what cloud computing is, the usages of cloud computing, a comparison of organisations that offer cloud services and their architectures, an explanation on how a typical software company may benefit from having a cloud implementation, a description of a challenge that cloud computing has in research and a description of a challenge in a commercial adaptation in connection to cloud computing.

Information Technologies (IT) have become an integral part of the organizational infrastructure of most knowledge-intensive organisations in any sectors and countries. Traditionally, IT resources are internally hosted and maintained by user organizations. However, accompanied with continuous business and technology evolution, modern organizations are supported by an increasing number of IT applications and an ever sophisticated IT infrastructure. This increasing amount of internal IT facilities and resources has now become very costly and time-consuming for companies to maintain. Consequently, and also owing to the global economic crisis started in 2008, organizations nowadays are often facing the dilemma to remain high usage of advanced IT applications to sustain competitiveness on the one hand, and to substantially reduce their IT operation and maintenance costs on the other hand. With the development of new IT and web technologies, cloud computing emerges in recent years as a solution to this IT dilemma.

Cloud computing is one of the newest major evolutions in the technology industry. It is a paradigm where computing resources become available at any time, from anywhere just having an Internet connection. The cloud eliminates the need to be physically close to the hardware containing the data user wants to obtain. It can own both hardware and software necessary to run business applications. Cloud service also reduces costs for a company, by excluding the need to buy additional servers and memory storages. Furthermore, because this method of computing uses the pay-as-you-go payment method, it charges organisation based on the usage. This means that business can purchase more space or reduce their subscription as it is required

Cloud computing is a general term that describes a type of computing that provides services over internet. The roots of cloud computing starts from a concept formulated by J.McCarthy in the 1960, the utility computing or the idea that computing could be organised as a public utility such as water or gas. This concept with many others such as network-centric-architecture and grid-computing can be found under the umbrella of cloud computing (Marinescu, 2013).

Cloud computing has become a compelling paradigm for delivering and managing services over the internet. Although it might be difficult to define cloud computing, one simple definition of the term is virtualized third-party hosting. In simple terms, instead of renting the entire or actual physical server, one rents a certain proportion of server resources. The client’s server runs within a virtual container that may be moved from a physical server to another without service interruption. Cloud computing has changed the entire landscape of Information Technology, and it is finally actualizing the long-standing promise of utility computing. This paper serves as a comprehensive overview of the cloud computing technology; definition,

Cloud computing is a topic of which much is assumed. The average person recognizes the term “cloud computing” as having to do with their storage from their iPad or iPhone on the online storage area which syncs their Apple devices to their computer. This common cloud is called the iCloud. That is where common knowledge ends about this topic. However, upon further exploration, a deeper understanding is gained with greater explanation, and it is realized that cloud computing is something that is used all of the time on many levels of everyday technology. While the terminology remains cryptic to the mind of most people, the concepts behind the practical uses of cloud computing become quite clear. It is relatable and understandable. Upon this revelation, the iCloud is recognized as the tip of the preverbal iceberg when speaking about cloud computing. It is important to discuss and further understand the many types of cloud computing as well as the various applications to life through technology. This affects how information is stored online, computers are protected, information is secured, emails are processed, and many other factors that are taken for granted in the world of technology. Cloud computing is a general term used to describe how information is stored, utilized, and accessed over the internet. There is no cloud, but the word cloud gives the connotation of an abstract place which is known to exist but is too vast to touch or contain (Griffith,

Measureable Service & Reduce Spending Money: This service is pay as you go, it may depends on your usage, Storage, no. of users or hourly rate. Even you don’t have to buy costly IT infrastructure.

With a significant development of the era of internet information, numerous data from vary field like science, engineer and business need to be handled quickly and accurately, which means the demand of computing power is far more than the ability of current technology. In order to enhance the computing system and save cost, ‘Cloud computing’ was emerged. People use cloud computing commonly in storage, which allow consumers use internet to share or store resources and information. The concept of this technology was proposed initially by John McCarthy in 1960s, while he predicted, computing will become a part of infrastructure instruction like gas, water and electricity everyone can get and use it easily and cheaply. The

The previous chapter demonstrated the key fundamentals of the research and an introduction to the concept of Cloud Computing. Even though a lot of research work has been done on the subject of cloud computing, the field is still a relatively new academic field. The National Institute of standards has established the standards related to Cloud computing and the research into the subject continues, especially with new tools and technology infrastructure that continues to evolve at a very fast pace.

Cloud Computing is one of the emerging technologies which now represent a reality and a low-cost computing power resource which has gained popularity among all business categories, especially medium and small size, governmental or medical organizations, as more people are realizing the power and benefits of cloud environments. Cloud computing involves deploying groups of remote servers and software networks that allow different kinds of data sources be uploaded for real time processing to generate computing results without the need to store processed data on the cloud. Clouds can be classified as public, private or hybrid

With the rapid change in processing and storage technologies and the success in the communication network such as Internet, lessen cost of computing resources, more powerful and more ubiquitously available than ever before. This technological change has enabled the development of a new computing paradigm called cloud computing, in which resources are shared by multiple system over the communication network. Cloud computing is a set of IT services that are provided to a business organizations or customers over a network on a leased basis and with the ability to scale up or down their service requirements. Cloud computing services are delivered by a third party provider who owns the infrastructure. Cloud computing has turned up as a new model for hosting and delivering services over the internet. Cloud computing becomes an attraction in the business world as it does not require plan for provision and business can be set up with a small amount.