"SaaS" includes software solutions delivered over the internet as a service, allowing users to access applications via a subscription model without needing local installations. This model offers businesses flexibility, scalability, and easier maintenance, as updates and infrastructure management are handled by the service provider. Popular examples of SaaS include applications like Salesforce, Microsoft 365, and Google Workspace, which facilitate collaboration and productivity. SaaS significantly reduces upfront costs for businesses, enabling them to adopt advanced software solutions without significant investment in hardware or IT resources.