Definition: Cloud computing delivers computing services (like storage, servers, and applications) over the internet. It offers three main service models: SaaS, PaaS, and IaaS.
SaaS (Software as a Service): Provides ready-to-use applications over the internet. Users access software without worrying about the underlying infrastructure. Example: Google Workspace or Dropbox.
PaaS (Platform as a Service): Offers a platform allowing developers to build, run, and manage applications without dealing with underlying infrastructure. Example: Google App Engine or Microsoft Azure.
IaaS (Infrastructure as a Service): Delivers fundamental computing resources like virtual machines, storage, and networks over the cloud. Users manage the infrastructure. Example: Amazon Web Services (AWS) or Google Cloud.
Related Terms: Cloud Storage, Virtualization, Cloud Security, Serverless Computing.