Modern cloud computing is a delivery system for computing services either for free, or on a pay-as-you-go basis. In this system, users utilize the Internet and remote data centers to run applications and store data. Cloud technology can allow more efficient computing by removing most of the upfront costs of setting up an IT infrastructure. It also allows organizations to expand or reduce their computing facilities very quickly. Increasingly, cloud computing is perceived as a big step toward the long-held dream of computing as a managed utility similar to cable TV or electricity.(Buyya et al, 2010) Cloud computing can be defined by certain criteria. These features are what make cloud computing an attractive option for modern organizations. …show more content…
This will ensure applications have the resources necessary with as few resources as possible going unused. The last defining characteristic of cloud computing is measureable service levels. Resource usage can be monitored effectively and billed appropriately based on the level of use. Cloud computing can also be separated into three broad categories of service: software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS). SaaS are applications that are typically run on remote computers that are owned and operated by a third-party; they connect to customers computers via the Internet. Examples would be, accounting software such as QuickBook on the enterprise side and services like Facebook or Google on the consumer side. The second category, PaaS is a platform for developers to design and build their own applications rather than use existing ones. These applications could range from a web site to a custom operating system. An example of a PaaS provider is Windows Azure Cloud Services. The third and final type of cloud offering is IaaS. IaaS is the actual nuts and bolts of computing hardware in virtual form. An IaaS provider such as Amazon Web Services (AWS) can offer their customers access to server farms that otherwise would be beyond their capability to operate.(Juve et al, 2013) Cloud computing, as it has come to be understood, is more than simply storing data remotely. It is instead, the idea of the technology itself
Cloud Computing has specific characteristics that separate it from regular resource and service provisioning environments. Some of them include:
There are three service models for Cloud Computing, SaaS (Software as a Service), Paas (Platform as a Service), IaaS (Infrastructure as a Service). It is important for businesses to fully understand the knowledge about each models before investing on Cloud Computing.
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, in its most basic form, is “using computer services [such as computer and data storage, management and processing] that are delivered over a network” (Kim & Solomon, 2013, p. 189). For example, an organization may require a great deal of storage for their data but may not want to purchase the servers, the physical space for the servers, or the personnel to manage the infrastructure. Instead, they take advantage of the many cloud computing options and outsource their needs, hiring someone to do everything off-site usually with the goal of reducing their overall cost of ownership. As defined by the National Institute of Standards and Technology (NIST), cloud computing has five essential characteristics, three service models, and four deployment models (Mell & Grance, 2011) which will be covered, briefly, in the next few sections.
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).
As with any new trend in the IT world, enterprises must figure out the benefits and risks of cloud computing and the best way to use this technology. The buzz around cloud computing has reached a fever pitch. Some believe it is a disruptive trend representing the next stage in the evolution of
The largest Buzzword in emerging trends for the computer world is “Cloud”. Cloud computing in the future for data, services and platform. The concept of cloud computing is to make whatever aspect it is being used in available at all times and to act as a resource. Turning computing into a utility will transform how the IT industry uses services, designs hardware and uses network infrastructures. The term “Cloud” however has many meanings, but understanding what exactly is meant by cloud computing is the first step to
There are three main categories of cloud computing services. They are SaaS known as software as a service, IaaS known as infrastructure as a service, PaaS known as platform as a service and FaaS known as function as a service.
Cloud computing paved the way to the specific type of service known as Software as a Service (SaaS) in the 1990s, as well as programs like Salesforce, which gave businesses the ability to have better “customer relationship management” (Goodrich 2013). As more SaaS programs became available, it was clear that agencies like The National Institute of Standards and Technology and Legal Cloud
In common usage, the term “the cloud” is essentially a metaphor for the Internet. Marketers have further popularized the phrase “in the cloud” to refer to software, platforms and infrastructure that are sold “as a service”, i.e. remotely through the Internet. The major models of cloud computing service are known as software as a service, platform as a service, and infrastructure as a service. These cloud services may be offered in a public, private or hybrid network
Cloud computing is currently being used by a large number of organizations. Many consider it a major development of the decade in computing. In this article I define cloud computing, various services available on the cloud infrastructure, then discuss the technological trends which have led to its emergence, its advantages and disadvantages, and the applications which are appropriate to outsource to a cloud computing service.
A cloud is a unique information technology (IT) environment which has been designed for the purpose of provisioning, scalable and measured information technology resources remotely. Cloud Computing Service provides IT as a service over the internet on demand basis and the payment is based on usage. Cloud computing services are provided from development platforms and full applications to servers and storage. Cloud computing is a pervasive advancement which gives a beneficiary way to the clients to benefit the cloud applications on interest. It refers to the network service in which services are provided with assured QoS, affordable computing infrastructures with an easy and simple access on demand and is enabled
Many different authors and many different sources have defined cloud computing in diverse words from different perspective as each definition provides a partial view of the cloud attributes and the definitions have been the subject of discussion.
provides different types of services by utilizing pool of resources mainly hardware, software, database, network, in terms of pay-for-use basis as per specific Service label agreement. Cloud Computing is becoming more and more popular at present information technology setup of many large organizations. [2].
Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.[1]