Cloud services have made a lot of noise as they have revolutionized literally every aspect of business operations online. The terms “cloud computing,” “IaaS,” “PaaS,” and “SaaS” have firmly entered our lives as we use a variety of apps on our smartphones, work in the Google Docs, and share/use links to documents and media stored in the cloud every day.
https://litslink.com/blog/iaas-paas-saas