SUSE Linux Enterprise Server (SLES) is a robust, open-source operating system designed for servers and enterprise environments. It provides a stable and secure platform for running applications, managing workloads, and supporting various hardware architectures. SLES is known for its reliability and is often used in data centers and cloud environments. SLES offers a range of features, including advanced security options, high availability, and support for virtualization technologies. It is backed by SUSE, a company that provides professional support and services, ensuring that businesses can effectively deploy and manage their IT infrastructure with confidence.