2.1 Cloud Computing Fundamentals: Cloud computing is a model for allowing convenient on-demand access from anywhere to a shared pool of computing resources. These can include servers’ storage, networking, applications, and services that can be rapidly and easily provisioned and released. The cloud model includes five essential characteristics: On-demand self-service: This allows users to quickly and automatically get access to the IT resources that they want without requiring any additional human interaction. Broad network access: This is the ability to access the service from any standard device that 's connected to the network including PCs laptops mobile phones or tablets. Resource pooling: Compute networking and storage are pooled and shared across multiple customers. Rapid elasticity: This allows you to quickly scale or shrink the capabilities of your cloud to match the level of user demand. Metering: This tracks and controls the level of resource usage or the cost of that usage. Customers generally choose one of three options for their cloud deployments either public, private or hybrid cloud. Private cloud: Is provisioned for the exclusive use of a single organization. The infrastructure is usually owned managed and operated by the organization within its own firewall. Public cloud: Is an infrastructure that is open for use by the general public. This type of cloud is owned, managed and operated by a cloud service provider and runs on the provider 's
Measured Service: The users can measure and monitor the service offered by the CSP and can request more or stop based on the requirement.
Business owners use three types of cloud service, public, private, and hybrid these clouds store their data and provide them with services. The benefits of these clouds are endless, additionally, they saves businesses time and money, promoting innovation, enhancing productivity, and improving communication while cloud hosting accelerate information sharing, like email, application hosting, web-based phone, and data storage (Griffith, 2013).
Public Cloud - The cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services.
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.
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.
The application could be accessed by any customer with Internet access and companies were able to purchase the service on a cost-effective on-demand basis
Individual use on request -The resources can be used at anywhere, anyplace and at any time via a global network. There is no need for human intervention from a service provider in order to access the resources
There are different types of cloud computing services available on the market which falls into one of the following categories.
Cloud computing is a technology that has come full-circle in recent years. Computer equipment used to be too expensive for an average individual to own. The original industry model was a computer mainframe with dummy terminals. This fit the technical definition of Cloud Computing in a primitive sense because all data was stored and accessed from the mainframe. With the advent of the microprocessor, MS-DOS and Windows, hardware and software prices dropped and computers became commonplace in businesses and homes. This transition led to a model with personal computers storing data locally and not being connected to each other. Then as the Internet was created and the World Wide Web was developed to explore it, Personal Computers became
of a Public cloud is that they may be larger than an enterprises cloud, thus providing the
Hybrid cloud computing refers to policy-based and coordinated service provisioning, use and management (orchestration) across a mixture of private and public cloud services. Gartner has predicted that by 2019, more than 30 percent of the 100 largest vendors’ new software investments will have shifted from cloud-first to cloud-only. They have also predicted that 90% of organizations will adopt hybrid infrastructure management by 2020. Developing a solid hybrid cloud strategy can help address issues including:
Cloud computing refers to the delivery of computing services over the internet. The computing services include: infrastructure, development platforms and software applications. Cloud services are privately owned for the purpose of remotely provisioning scalable and measured IT resources from data centers located around the world.
Public Cloud :- In this type of deployment a designated service provider will cater to an audience. It is owned by the organization selling cloud services and the services could be offered to either single tenant or multiple tenants.
Cloud computing is a way of providing IT enabled capabilities as reliable service-on-demand with elasticity and scalability, where users can make use of infrastructure, resources, platform, or software without manual intervention and manage the fundamental complexity of the
The word cloud implies the internet and its diverse parts. Cloud computing was made for what happens when applications and services are moves into an internet. All the more as of now however, cloud computing alludes to the wide range of sorts of administrations and applications being conveyed in the cloud, and the way that, by and large, the gadgets used to get to these administrations and applications don 't require any unique applications.