Please define Cloud Computing and the $5$ xaaS listed below.

IaaS Infrastructure as a Service

PaaS Platform as a Service

SaaS Software as a Service

FaaS Functions as a Service

DaaS Desktop as a Service

Consider what type of people or organizations would use them.

Consider when we may and may not use them.

Consider the time and effort to start using these and time and effort to stop using them

Consider the financial cost

Consider mentioning the most popular vendors

Be sure to use references