Cloud computing is the delivery of different IT services through the internet. These resources include tools and applications like data storage, servers, databases, networking, and software.
Cloud computing is a term used to describe the delivery of hardware and software with the help of the internet, In layman terms, cloud computing is computing based on the internet
Instead of buying a physical hard drive or local storage devices, cloud-based storage makes it possible to save them to a remote database. Till the time it has access to the internet, it has access to the data and all the programs to run it. Before cloud computing, people used to download and run software on a physical computer or server but now they can access the same program through the internet.
Cloud computing works by moving all the work to a huge cluster of computers in remote cyberspace. All the heavy processing takes place in a machine, this means devices using that data doesn’t have to work hard. By presenting the database remotely, it frees up memory and Data is accessible with any device that can connect to the web and have credentials provided by the cloud computing provider.
Corporation of every type is using cloud computing as it increases productivity, aids in cost savings, performance, speed, and security.
Different Types of services are used by organizations such as Email, Data backup- Data storage, Analyzing data, Delivering software on-demand, virtual desktops, testing, big data analytics, and customer-facing web applications.
Types of cloud computing service
- Infrastructure as a Service (IaaS)
It is a service that hosts infrastructure on the public cloud and private cloud instead of in a conventional on-premises data center.
Infrastructure as a Service (IaaS) is a cloud computing service where companies borrow or contract servers for computing and storage in the cloud. Users can run any operating system or program on the servers without the maintenance and operating costs of those servers.
Advantages of Infrastructure as a Service include giving clients access to servers in geographic areas close to their end-users. IaaS scales, up and down, depending on demand, and gives assured service-level agreement (SLA) both in terms of uptime and performance. It eradicates the need to manually manage physical servers in data centers.
Advantages of infrastructure-as-a-service
• Continuity and disaster recovery
Cloud service in different locations allows access to programs and data during a disaster or brownout.
• Faster scaling
Instantly scale up and down resources according to application requirements in all divisions of cloud computing.
• Core focus
IaaS allows companies to concentrate further on core business activities instead of IT infrastructure and computing resources.
Examples of PaaS
DigitalOcean, Linode, Rackspace, Amazon Web Services (AWS), Cisco Metapod, Microsoft Azure, Google Compute Engine (GCE)
2. Platform as a Service (PaaS)
It is a service that provides cloud components to certain software while being used mainly for applications. PaaS delivers a framework for developers that they can build upon and use to build a customized program. All servers and networking can be handled by the company or a third-party provider while the developers can maintain the command of the applications.
PaaS tremendously simplifies web application development; from the developer’s view, all backend administration takes place behind the scenes. Although PaaS has some links with serverless computing, many significant differences are separating them. It provides a development platform layer, with components such as web servers, database management systems, and software development kits (SDKs) for various programming languages.
Advantages of Platform as a Service (PaaS)
- Scalable
- Highly available
- Easy migration to the hybrid model
- Developers can customize apps without the headache of maintaining the software
- Significant decrease in the amount of coding required.
Examples of PaaS
- AWS Elastic Beanstalk
- Windows Azure
- Heroku
- Force.com
- Google App Engine
- OpenShift
- Software as a Service (SaaS)
Saas is one of the most used cloud computing platforms. It is a software division model in which a service provider hosts applications for clients and makes them accessible to these customers through the internet.
SaaS may be the most useful option in certain circumstances, such as
- Startups or small companies that need to launch e-commerce quickly and don’t have time for server issues or software
- Short-term projects that require quick, easy, and affordable collaboration
- Applications that aren’t needed too often, such as tax software
- Applications that need both web and mobile access
Advantages of Software as a Service (SaaS)
SaaS provides various benefits to workers and corporations by considerably reducing the time and money paid on tiresome tasks such as installing, managing, and updating software. This frees up lots of time for the technical team to spend on more important matters and issues within the organization.
Examples of SaaS
Google Workspace, Dropbox, Salesforce, Cisco WebEx, Concur, GoToMeeting
