Cloud computing has changed the IT industry in a radical way, applications and programs can be scaled instantly. Gone are the days where services and products limited to geographical locations. With cloud computing, organizations can practically develop entire applications and software with only online resources. Cloud computing can be further divided into Infrastructure as a Service (IaaS), The Platform as a Service (PaaS) and Software as a Service (SaaS). In this blog, we will look at them individually in considerable detail.
Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS) is the use of cloud computing as the base for developing and executing applications. In this model, organizations pay cloud computing providers for their service, which almost runs like the operating system more than a service. The system administrators are the principal users of this service.
Advantage of IaaS
- Instant scalability
- Pay per use billing model
- No geographical limitations
- Minimal hardware investment
The Platform as a Service (PaaS)
The Platform as a Service (PaaS) is in the middle of the “as a service” pyramid, and they are also called middleware for the same reason. If IaaS is the operating system if the cloud computing is taken as a personal computer, then PaaS is the software running the operating system. IT is also more complicated than IaaS, developers are the principal users of PaaS. PaaS comes with scripting environment, support and storage capabilities.
Advantages of PaaS
- Application development environment
- Tools and resources for development
- Network access
- Storage space
Software as a Service (SaaS)
Software as a Service (SaaS) is more well known and more used part of the cloud computing platform. From Gmail to Amazon market, all these cities are outputs of the previously mentioned platforms. This is also the most advanced platform for cloud computing as well, this is due to the sheer of the number different of services it provides.
Advantages of SaaS
- Automatic updates
- Global availability
- Compatible across devices and locations
- A diverse number of application
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