Rio (program)
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- The correct title of this article is rio. The initial letter is shown capitalized due to technical restrictions.
rio is Plan 9 from Bell Labs's windowing system.
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[edit] Overview
Many of its features embody key Plan 9 design concepts:
- Each window runs in its own private namespace.
- It exports a file system interface to running applications. This interface is the same rio receives from the operating system, allowing rio to run inside a rio window without any special arrangements. Because the interface uses 9P, rio is network transparent even if it doesn't include any network-aware code.
- Windows are treated as completely editable text.
It is most notably known for making its window management transparent to the application. This allows running rio inside rio or another window manager.
[edit] History
Rio is the latest in a long series of graphical user interfaces developed at Bell Labs, most developed by Rob Pike, including the first graphical window system for UNIX (which predated X), the concurrent window system, and the Blit.
In previous editions, the windowing system for Plan 9 was known as 8½.
[edit] See also
- Plan 9 from Bell Labs - rio's native environment
- Plan 9 from User Space - Includes a window manager that emulates the rio user interface
- Rob Pike - The author of rio and 8½
- Blit - A terminal developed at Bell Labs that pioneered some of the UI concepts used in Rio.
[edit] External links
- rio man page(4)
- The 8½ paper - Describes rio's predecessor which had a very similar design
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