Chapter 1: Introduction Cloud computing is one of the most popular and emerging technological advancements in the world f mobile computing, which has change the way people compute in great ways. It offers many opportunities and challenges. This chapter introduces the topic and provides a background overview of the research subject. Introductory Overview of the Topic In the last few decades, the increased capability and accessibility of Internet had resulted in many benefits to the world of computing. One of the most prominent contribution t to power cloud computing. Cloud computing, a relatively new technology, has experienced tremendous growth since its inception, with organizations and individual finding it beneficial, due to its convenience and ability to deliver computing resources at cost effective terms. The cloud offers on-demand cloud computing resources, eliminating the need for organizations to purchase, install, store and maintain costly computing infrastructure. It also offers reliability and flexibility in terms of computing. With the cloud model, users can have services in three paradigms. First, cloud as an infrastructure offers the users on-demand computing infrastructure, including acquiring and managing the underpinning hardware and software, which they then rent out to the users. With IaaS, users can get the same processing power and speed, as well as have access to unlimited storage space. In addition, the cloud as service provides platform as a
Cloud computing can be understood as a multifaceted infrastructure of hardware, software, storage and processing available to be used as a service. With the use of cloud computing, without even knowing how it works, one can access a large number of the most sophisticated supercomputers of the world and their respective processing powers without being overwhelmed with space or information. Cloud computing allows access to computer networks located at various places in the world and thus offers the speed of
Cloud Computing is a wide term that defines an extended kind of services. In order to actually comprehend how the Cloud can be of worth to an association, it is the first significant to understand what the Cloud truly is and its diverse mechanisms. The different categories of Cloud Computing services normally mentioned to as
Cloud computing combines several computing concepts, all geared towards provisioning of hosted services over an internet connection. By leveraging this technology, organizations have been relieved of the challenging, complex and often
Cloud computing is a new paradigm in the computer virtualization. It has transformed the technology and business and its use is growing rapidly. Unlike traditional system, where services are hosted at physical location, cloud computing offers a virtualized shared machine in a web based environment. Cloud computing has three types of service models and four
Recently, Cloud technology has turn out to be a huge buzzword, and with good reason. The cloud already creates remarkable value for clients and businesses by making the digital world simpler, faster, more powerful, and more efficient. In addition to bringing valued Internet-based services and applications, the cloud can provide a more
Cloud Computing is one of the most popular computing technology. It allows organizations to use resources like hardware, software and IT applications as a service through the internet or web without physically holding these resources internally. So, organization need not worry about the maintenance of these resources. These cloud applications and services can be accessed not only by PCs but also using mobile devices, such as smart phones and tablets (Dutta, Peng, & Choudhary, 2013). Furthermore, this model also provides on demand supply of resources on pay-as-you-go basis. These advantages make cloud computing more popular among other technologies.
At a minimum, IaaS public cloud services offer storage and compute services on a pay-per-use model. But the full array of public cloud providers services offered by all major is mind blowing. Virtual private networks, Highly scalable databases, big data analytics, machine learning , developer tools, application monitoring etc. Amazon Web Services was the first IaaS provider, followed by Microsoft Azure, Google Cloud Platform and IBM Cloud.
Cloud computing can be defined as a model for enabling pervasive, convenient, on-demand network access provided to users to provide a shared pool of configurable computing resources. Networks, Storage, services, and applications make a part of these network sources. (Mell & Grance, 2011). In general terms, cloud computing can be stated as the process by which the users with the help of a web browser over the internet can remotely access data and program applications. A few characteristics of cloud computing are:
The model of cloud computing has increased in modern years and has become a very important feature in day-to-day computing. Cloud computing simply means virtually extracting resources from service provider through internet. It means that the user has minimum hardware configuration and still by using remote services the user can compute extreme tasks which require maximum amount of computing. Cloud services provide user variety of perks such as data storage, computing power(memory), and networking.
Cloud computing is one of the most useful technology that is been widely used all over the world. It generally provides on demand IT services and
The definition of “Cloud”, also called cloud computing, is an Internet-based computing that storing, accessing and processing data, resources, and programs on a free or pay-for-use basis to computers and other devices. Late in 1990s, the term “Cloud” was used to present shared resources and data over the Internet between the provider and the end user.
Infrastructure as a Service like Amazon Web services provides virtual server instances with unique IP addresses and blocks of storage on demand. Customers use the providers application program interface(API) to start, stop, access and configure their virtual servers and storage. In the enterprise, cloud computing allows a company to pay for only as much capacity as needed and bring as soon as more is required.
Under the Introduction section, the authors have emphasized about the importance of Cloud Computing by describing Computing as the fifth most commonly used utility. Cloud Computing is a new computing paradigm in which computing resources are provided as a
The cloud refers to wide – area networks, generally the intent from which remote computing resources are shared as shown in the Fig 1.1. The cloud reduces costs and complexity and provides scalability. The biggest advantage that the cloud brings is to reduce costs and improve efficiency. An institution can rely on the ‘pay-as-you-go’ characteristic of the three pillars of cloud: PaaS and Saas. Ease of maintenance increase efficiency as the pain of maintaining the software is now shifted to the cloud service provider.
Cloud computing have revolutionized life as we know it; it allows people to store, manage, and access their data by using a network of remote servers which are hosted on the internet rather than using a local server or own hardware. A recent study conducted by KPMG found that 81% of businesses were either evaluating cloud services, planned a cloud implementation or had already implemented a cloud strategy [1]. Organizations tend to use the cloud to reduce costs and improve efficiency. Cloud is not a commodity, some people think that it comes out of the sky, while in fact it comes from physical hardware inside brick and mortar facilities which are connected to hundreds of miles by networking cables.