Editing File system (section)

===Plan 9===
[[Plan&nbsp;9 from Bell Labs]] treats everything as a file and accesses all objects as a file would be accessed (i.e., there is no [[ioctl]] or [[mmap]]): networking, graphics, debugging, authentication, capabilities, encryption, and other services are accessed via I/O operations on [[file descriptor]]s. The [[9P (protocol)|9P]] protocol removes the difference between local and remote files. File systems in Plan&nbsp;9 are organized with the help of private, per-process namespaces, allowing each process to have a different view of the many file systems that provide resources in a distributed system.

The [[Inferno (operating system)|Inferno]] operating system shares these concepts with Plan&nbsp;9.