Are you thinking of moving to the cloud, and wondering what options you have? Well, there are 4 main types of cloud computing: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS), and (BaaS) Backup as a Service.
With IaaS, companies control their own computing, networking, and storing components without having to manage them on-premises physically. PaaS, provides developers with a framework to build custom applications, while SaaS avails internet-enabled software to organizations via a third party.
Also known as Hardware as a Service (HaaS), IaaS is a computing infrastructure managed over the internet without the cost and complexity of purchasing and managing the physical servers.
A cloud computing platform created for the programmer to develop, test, deploy, and manage the applications.
Software in which the applications are hosted by a cloud service provider. Users can access these applications with the help of an internet connection and a web browser.
Also known as cloud backup. Instead of building and maintaining in-house data backup solutions, companies purchase backup and recovery services from cloud service providers. Cloud-based backup is more cost-effective, safe, reliable, and requires much less maintenance.
The types of cloud computing deployment models are private, public, & hybrid.
The private cloud model consists of an infrastructure that is owned or rented by a single business. This model can be hosted in-house or can be externally hosted.
QThe public cloud model consists of services and infrastructure that are shared by all organizations. With huge available space, scalability becomes easier in public cloud solutions.
The hybrid cloud is a combination of both public & private clouds. A hybrid cloud combines the two models to create a tailored solution that allows both platforms to interact seamlessly.
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IaaS also known as Hardware as a Service (HaaS), provides an on-demand infrastructure to companies over the Internet instead of via a local datacenter.
IaaS has the following physical and virtual resources that allow companies to run workloads in the cloud:
The Infrastructure as a Service model can be used by startups to avoid the costly and tedious process of setting up on-premises IT infrastructure. Similarly, large corporations that want to retain control over their IT infrastructure, but with the flexibility of paying only for resources consumed, can also use this model.
Some examples of Infrastructure as a Service include Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP) and Rackspace.
With PaaS, application developers rent the infrastructure they need for a complete application lifecycle: development, testing, deployment and maintenance. App developers rent the servers, networking, storage components, middleware, development tools, and database management systems (DBMSs) from the PaaS provider.
Platform as a Service allows an organization to avoid the process of purchasing and managing software licenses. PaaS providers manage everything else related to the application lifecycle while allowing developers to focus on the applications they are developing. PaaS is particularly useful for organizations with multiple developers in different locations.
PaaS can simplify the application development lifecycle in a Rapid Application Development (RAD) environment.
Some examples of Platform as a Service include Google App Engine, OpenShift, AWS Elastic Beanstalk, and Heroku.
SaaS providers host software on their servers and rent it to organizations on a subscription basis. The SaaS model allows users to access the application via a web browser where they log in with their usernames and passwords.
With the SaaS model, companies can rent productivity software such as email, collaboration and calendaring, etc. Some SaaS business applications include enterprise resource planning (ERP), document management, and customer relationship management (CRM).
Startups can use SaaS to hit-the-ground-running and launch enterprise applications quickly if they do not have the time to set up the server or software.
Common examples of SaaS include Dropbox, Google GSuite Apps, and GoToMeeting.