CentOS is a Linux distribution that attempts to provide a free, enterprise-class, community-supported computing platform. Developed by The CentOS Project
License: Open Source
CentOS is a free and open-source Linux distribution known for its stability and security, making it ideal for server environments, while Windows 7 is a widely used operating system with a user-friendly interface and strong software compatibility, but it is no longer supported and is more prone to security vulnerabilities.