Gmail is associated with which cloud computing model?

Gmail is associated with the Software as a Service (SaaS) model of cloud computing. In this model, applications are hosted on the cloud and made available to users over the internet. Users can access Gmail from various devices without needing to install or maintain the software on their local systems. This allows for easy collaboration, accessibility, and automatic updates provided by Google, which operates and maintains the underlying infrastructure.

SaaS is characterized by subscription-based access where users pay for the service without having to manage the underlying hardware or software. This contrasts with the other models: Platform as a Service (PaaS) typically provides a framework for developers to build applications, Infrastructure as a Service (IaaS) provides basic computing resources, and Data as a Service (DaaS) involves delivering data to users over the internet. Each of these has different purposes and target audiences, but Gmail, being a fully functional email application available to consumers directly, fits the description of SaaS perfectly.