IRIX is a discontinued operating system developed by Silicon Graphics, Inc. (SGI) to run natively on their MIPS workstations and servers. It is based on UNIX System V with BSD extensions. IRIX was the first operating system to include the XFS file system.

IRIX is a discontinued operating system developed by Silicon Graphics, Inc. (SGI) to run natively on their MIPS workstations and servers. It is based on UNIX System V with BSD extensions. IRIX was the first operating system to include the XFS file system.