Cloud computing is a technology paradigm that leverages the internet to deliver computing services, including servers, storage, databases, networking, software, and analytics, over the cloud (internet).
Features of cloud computing
- Resources pooling
- On-demand self-service
- Easy maintenance
- Large network access
- Availability
- Automatic system
Models
- Infrastructure as a Service (IaaS): In this model, users rent virtualized hardware resources like servers, storage, and networking. They have control over the operating system and applications but not the underlying infrastructure.
Benefits
- Cost savings
- On-demand access
- Flexibility
- Platform as a Service (PaaS): PaaS provides a platform that includes an operating system, development tools, and runtime environments. Users can focus on building and deploying applications without managing the underlying infrastructure.
Benefits
- Faster development time
- Reduced costs
- Enhanced security
- High availability
- Software as a Service (SaaS): SaaS offers fully developed software applications that are accessed over the internet. Users do not need to worry about infrastructure, maintenance, or updates; they simply use the software.
Benefits
- Lower total cost of ownership
- Better security