Cloud computing is the distribution, usually over the internet and on a pay-as-you-go basis, of on-demand computing services—from software to storage and processing power.
For various reasons, including cost savings, increased productivity, speed and efficiency, performance, and security, cloud storage is a common choice for people and businesses.
How cloud computing works:
Cloud computing is defined because the information obtained is found remotely in the cloud or a virtual space. Cloud service providers allow users to store files and software on remote servers and then access all data through the Internet.
One advantage of using cloud computing services is that businesses can escape the immediate expense and difficulty of owning and managing their own IT infrastructure and pay for what they need by using it instead.
The distribution of various services via the Internet, including data storage, servers, databases, networking, and applications, is cloud computing.
Cloud-based storage allows files to be stored on a remote disc and accessed on demand.
Services may be both public and private, whereas private services are hosted on a network for individual users, and public services are offered online with some fee.
Types of cloud services
Cloud computing is a system that consists mainly of three services: software-as-a-service (SaaS), infrastructure-as-a-service (IaaS), and platform-as-a-service (PaaS).
- Software-as-a-service (SaaS): Software as a service is a system for delivering software applications over the Internet, on-demand, and usually on a subscription basis. With SaaS, cloud providers host and operate the software application and underlying infrastructure and manage any maintenance.
- Infrastructure-as-a-service (IaaS): As part of on-demand infrastructure, it provides a mechanism for delivering anything from operating systems to servers and storage via IP-based networking. In an outsourced, on-demand service, clients may eliminate the need to buy software or servers and procure these services instead. Amazon Web Services and Microsoft Azure are typical examples of the IaaS framework.
- Platform-as-a-service (PaaS): Out of the three layers of cloud-based computing, it is considered the most complex. PaaS has some similarities with SaaS; the critical difference is that it is merely a platform for developing software distributed via the Internet instead of delivering software online. This model includes platforms like AWS Elastic Beanstalk, Openshift.
Top benefits of cloud computing
Cloud computing is a massive transition from the conventional way corporations think of IT resources. Here are seven different reasons organizations are moving to cloud computing services:
- Cost: Cloud storage eliminates the capital cost of purchasing hardware and software operating on-site data centers, server racks, power & IT experts for infrastructure management.
- Security: A wide range of policies, technologies, and controls are provided by many cloud providers that improve overall security posture and protect the data, apps, and infrastructure from potential threats.
- Speed: Most cloud computing services provide speed: Self-service and on-demand, but even huge volumes of computing resources can be provided in less time, gives organizations compliance, and takes off the burden of capacity planning.
- Productivity: Usually, on-site data centers need a lot of "racking and stacking"-hardware configuration and other IT management activities that usually takes much time. It helps IT teams to attain more relevant business objectives by removing such a need for these activities.
- Global Scale: Cloud computing services' advantages include the ability to scale elastically. This means having the right amount of IT resources in the cloud, such as more or less processing capacity, storage, bandwidth, right when needed.
- Reliability: Cloud storage makes it simpler and less costly for data backup, disaster recovery, and business continuity.
- Performance: Cloud provides many advantages over a single corporate datacenter, including reduced network latency and more significant scale economies.
The architecture of cloud computing
Cloud computing architecture is a blend of service-oriented architecture and event-driven architecture, which is distributed into two parts -
- Front End: The customer uses the front end. It involves client-side interfaces and applications that are required to access the platforms of cloud computing. Web servers, thin & fat browsers, laptops, and handheld devices are part of the front end.
- Back End: The service provider uses the back end. It manages all the resources necessary for cloud storage services to be offered. It requires a large amount of data storage, encryption systems, virtual machines, templates, servers, traffic control mechanisms, and so forth.
Components of cloud computing architecture
- Management Software: Management is used to maintain and configure components such as application, service, runtime cloud, storage, infrastructure.
- Hypervisor: Hypervisor is a firmware that acts as a virtual machine manager. Its main objective is to divide and designate resources & maintain guest operating systems in the cloud.
- Deployment Software: It consists of all the necessary installations and configurations required to operate a cloud service. Three different models SaaS, PaaS, IaaS, can be deployed using the deployment software.
- Network: It is a flexible, secure, virtual server hosted on the cloud computing platform. It connects the front-end and back-end and customizes the route and protocol.
- Cloud Storage: Cloud storage provides a large-scaled storage capacity to manage & store the data. Data can be retrieved & modified from cloud storage in case of resource failure.
Cloud computing architecture provides an environment where organizations can create applications securely and use cloud resources based on customer requirements. Today, Cloud technology means that organizations can adjust at speed and scale, stimulate innovation, manage business agility, streamline operations, and reduce expenses. So, with this, we have a complete run-down of what the architecture of cloud computing is.