Linux - The most popular implementation of Unix Way
Linux Loves (and Is Loved by) Big Companies. IBM (now owner of Red Hat) helped birth the Linux Foundation and poured those billions into making Linux a standard. Google literally built Android on the Linux kernel, and they even pay full-time Linux security engineers to keep things tight. Meanwhile, Microsoft (yes, Microsoft!) has been cozying up to Linux too – think Windows Subsystem for Linux and SQL Server on Linux.