CoreOS is an open-source lightweight operating system based on the Linux kernel and designed for providing infrastructure to clustered deployments, while focusing on automation, ease. Developed by CoreOS, Inc
License: Free
CoreOS is designed as a lightweight, container-optimized operating system, making it ideal for cloud-native applications and microservices. In contrast, Windows Server 2012 offers extensive compatibility with enterprise environments and traditional applications, making it suitable for organizations that rely on Microsoft technologies.