Description: A host system is the underlying physical or virtual machine that provides resources for applications. In the context of cloud computing, a host system refers to the infrastructure that allows users to run virtual server instances. These host systems can be dedicated physical servers or virtual machines operating in a virtualization environment. The capacity of a host system is measured in terms of CPU, memory, storage, and network bandwidth, allowing users to scale their applications as needed. The flexibility and scalability of host systems enable businesses to quickly adapt to changing market demands, optimizing costs and resources. Additionally, host systems are crucial for ensuring the availability and performance of applications, as they provide the necessary environment for their execution. In summary, a host system is essential for the operation of cloud applications, offering the infrastructure needed to support diverse and dynamic workloads.