Cloud as a Service (CaaS) is a model for delivering various computing services over the internet, where resources such as storage, processing power, and applications are provided on-demand by cloud service providers. Users can access and utilize these resources without the need to manage physical infrastructure, enabling them to scale their IT capabilities according to their needs. This model includes services such as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Cloud as a Service offers flexibility, cost-efficiency, and ease of management, allowing organizations to focus on their core activities while leveraging advanced technology solutions.