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. It is compatible with various software applications and integrates well with other SUSE products, making it a popular choice for businesses looking to optimize their IT infrastructure.