The state of cloud computing stack: SaaS vs PaaS vs IaaS

Cloud Computing is often described as a stack, as a response to the broad range of services built on top of one another under the moniker “Cloud”.These  cloud stacks are 1) SaaS : Software as Service 2)  Platform as a service ( PaaS) and 3) Ifrastructure as a sevice ( IaaS)

 Software as a Service (SaaS), represent the largest cloud market.Cloud platform services, or Platform as a Service (PaaS), are used for applications, and other development, while providing cloud components to software .Cloud infrastructure services, known as Infrastructure as a Service (IaaS), are self-service models for accessing, monitoring, and managing remote datacenter infrastructures, such as compute (virtualized or bare mental), storage, networking, and networking services (e.g. firewalls).