• Cloud Computing
The name cloud computing originated as the internet was drawn as cloud in network figures. Cloud Computing means operating tasks on the internet remotely in some public cloud which are commercial provider's data center. Some popular examples are Salesforce's CRM system, Amazon Web Services. Google Cloud Platform etc. To be exact, cloud computing is nothing but a mass management of data center resources as groups of software and their virtualization. It is basically utilizing the virtual machine for services and the main advantage is capability of moving, easy computation, storage and availability of network resources as the task needs and pre existence of services that are required. The another reason why it is preferred
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Mostly the user of this kind of model runs cloud servers within its own data center. Public clouds are multi-tenant architecture and has pay as you go system. Some of the top vendors are Microsoft Azure, AWS etc. In this kind of model, a third party provider makes resources to public through the internet. The users do not have to set up or maintain their own cloud servers in the house. The hybrid model has the capacity of cloud bursting and has benefits of both the private and public models. This model has both the private cloud and third party public cloud services. Rouse, M. (2017, July). Though there are these kinds of model, the users tend to choose multi-cloud model. This is utilization of two or more clouds. The benefit of this kind of was of operating is that they can easily migrate between the clouds and minimize the risk of service outage. According to a survey around 61 % of users use multi cloud models.
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.
SaaS (Software as a service)
This type of public cloud computing provides applications through the internet. Most of the enterprise application follows SaaS model. This model provides both extensive configuration and also the development environment where the customers can code and make modifications and additions.
This type of cloud computing offers applications over the internet via the browser. The most popular SaaS business applications are Google G Suite and Microsoft Office 365. Other popular cloud services are Salesforce, enterprise applications, ERP suites from Oracle and SAP.
Cloud computing has been the hottest buzzword in recent years and is continually to be one of the most popular felids in which not only IT industry but other industries like commence, geosciences, education, etc are interested and where hundreds of millions of dollars flood into. The whole term “cloud computing” is first introduced to the public media by Google ex-CEO Eric Schmidt on Search Engine Strategies Conferences in 2006 (Schmidt 2006). The generally accepted definition of cloud computing is developed by the U.S. National Institute of Standards and Technology (NIST):
This type of public cloud computing provides applications through the internet. Most of the enterprise application follows SaaS model. This model provides both extensive configuration and also the development environment where the customers can code and make modifications and additions.
Cloud Computing is the use of common software, functionality or business applications from a remote server that is accessed via the Internet. Basically, the Internet is the "cloud" of applications and services that are available for access by subscribers utilizing a modem from their computer. With Cloud Computing, one simply logs into desired computer applications - such as sales force or office automation programs, web services, data storage services, spam filtering, or even blog sites. Generally, access to such programs is by monthly or annual paid subscription. Through Cloud Computing, businesses may prevent financial waste, better track
Cloud computing is an internet based computing which provides various applications and services like storage, servers, infrastructure, networking with low cost, on-demand self service, pay as you go model, location independent resource pooling, reasonable price , rapid elasticity etc. Cloud computing is one way to increase the capacity add capabilities without investing in new infrastructures like computer hardware involves storage memory, licensing for new software, training for a person and in a dynamic way.
Cloud computing is a model for enabling ubiquitous (present everywhere), 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]. Types of Cloud computing models are Public cloud, Private cloud and Hybrid
The cloud service and infrastructure is provisioned for public. It may be owned, managed, and operated by a business, academic, or government organization, or some combination of them. Public Cloud is more like a true host that provides services and infrastructures to various customers. Customers have no controls or privilege over the locations of the infrastructures. The vulnerable part of this model is privacy and security since data and processing environment are not under management and control of the providers. Also some issues may occur such as network overwhelming, power outages, and hacker attacks, so running service in Public Cloud model is not 100% secured and perfect. That is why we will discuss next one. Examples of Public Cloud: Microsoft Windows Azure, IBM Smart Cloud.
A hybrid Cloud Deployment model with a combination of Public, Private and Community models will be used. The Cloud Service Delivery model will be a combination of SaaS, PaaS and IaaS to satisfy the requirements of the multiple business units within the organization, customers, and suppliers resulting in a cost reduction through optimized and efficient computing
The popularity of mobile system with the headway in engineering, with the increment of Internet utilization, comprehensively reinvent the old idea of network computing system, to the new buzzword "Cloud computing". Cloud computing is a link way to the usage of Cloud which process by transmitting and receiving files in utilizing Internet. Most systems uses either of the three major models of cloud computing services on the market, which are software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS).
SaaS is the most recognisable form of cloud technology for consumers. In this category, which is the most commonly used, the cloud-based service is
Cloud computing refers to the hardware, systems software, and applications delivered as services over the Internet (Antonopoulos & Gilliam 2010, p. 3). According to the United States’ National Institute of Standards and Technology (NIST), cloud computing is a model for enabling 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. However, even with all of these definitions, cloud computing is still somewhat a very broad term to describe. Oracle CEO, Larry Ellison (2008) once said:
Cloud computing is a fairly new technology; it is separated into three separate categories. The first is Infrastructure as a Service (IaaS) this service is mainly used by companies to cut the cost of buying computer hardware such as servers , they also save on maintenance cost since the virtual servers is maintained by the company that rents them [1]. The second category is Software as a Service (SaaS) this service deals with providing software which is usually rented, this allows users to have multiple users whereas normal software limits the amount of users [1]. The last category Platform as a Service (PaaS) is used as a tool to develop software [1]. All these services offered by Cloud Computing are done virtually where you access
According to Bowen (2011), there are four models for deploying cloud services (p1). A private cloud is private. Meaning it is yours and operated only for you. However, the private cloud can be outsourced to be managed by another. As the owner of the private cloud you can dictate your security and privacy options yourself. A community cloud is shared with others. By working with a community, the consumers should have shared requirements, security, and privacy options. Another type of cloud is the public cloud. This type of cloud is open to the public or it could be a large consumer who owns the cloud and is offering the services to consumers for a price. The last type of cloud is the hybrid. A hybrid cloud can both be private and community. The clouds are tied together but are still separate. The clouds share data and application portability.
Cloud computing is where software applications, data storage and processing capacity are accessed over internet. Organizations use cloud computing in a variety of different service models like IAAS, PAAS and SAAS. These are the three building blocks of cloud computing.
In very short span of time, cloud computing has become integral part of everyone’s daily lives. It has been growing rapidly and has captured wide range of market. Cloud has given rise to new mobiles and tablets which run powerful applications. It maintains our friendship via those apps and stores our personal data. It has several of importance like: