A cloud system is an information technology solution based on cloud computing technology. It stores and manages data, applications, and services on remote servers, which are then provided to users via the internet. Users can connect to these cloud services through the internet, eliminating the need for reliance on local hardware or software to run applications or access data. Cloud systems typically offer advantages such as scalability, flexibility, and high availability, allowing users to easily expand their IT infrastructure and access required resources as needed. Cloud systems can provide various services, including storage, virtualization, networking services, Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS), to meet the diverse needs of users. Real-time demands for cloud and on-premises mobile office can be achieved.