Cloud architecture refers to the systems and components that make up a cloud computing environment. This can include the hardware, software, and networking elements that are used to deploy and manage cloud services. A cloud architecture typically includes a front-end platform (such as a web interface or API) for managing the cloud, a back-end platform for storing data and running applications, and a network for connecting the two. Other key components of a cloud architecture may include load balancers, firewall and security systems, storage systems, and virtualization software.

There are several different types of cloud architectures, including:

• Public Cloud: In this architecture, the cloud infrastructure is owned and operated by a third-party provider, and is made available to the public over the internet.
• Private Cloud: In this architecture, the cloud infrastructure is owned and operated by a third-party provider, and is made available to the public over the internet.
• Hybrid Cloud: In this architecture, the cloud infrastructure is owned and operated by a single organization, and is not made available to the public.
• Public cloud: In this architecture, an organization uses a combination of public and private clouds to meet its computing needs.

Each one of these models have its own set of benefits, its usage and its target public based on their needs.