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 tailored for containerized applications, emphasizing automation and performance in server environments, while Puppy Linux provides a user-friendly experience with a lightweight design suitable for older hardware. CoreOS is more suited for developers and system administrators, while Puppy Linux caters to casual users looking for a simple OS.