CentOS: Free, Stable, and Secure Open-Source Operating System

CentOS is a free, open-source operating system that's based on the Red Hat Enterprise Linux (RHEL) codebase. It's a community-driven project that aims to provide a stable and secure platform for servers and workstations. CentOS is known for its long-term support and reliability, making it a popular choice for enterprise-level deployments. It's compatible with most software packages and tools that are designed for RHEL, making it a versatile and flexible operating system. CentOS is maintained by the CentOS Project and is available for download from their website.