Scout (operating system)
Encyclopedia
Scout is a research operating system
Operating system
An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer system...

 developed at the University of Arizona
University of Arizona
The University of Arizona is a land-grant and space-grant public institution of higher education and research located in Tucson, Arizona, United States. The University of Arizona was the first university in the state of Arizona, founded in 1885...

. It is communication-oriented and designed around the constraints of network-connected devices like set-top boxes.

The Scout researchers had in mind a class of devices that they called "network appliances", which include cameras and disks attached to a network. They believed that these devices have in common the following three characteristics:
  • Communication-Oriented
  • Specialized/Diverse Functionality
  • Predictable Performance with Scarce Resources


To satisfy these three requirements, Scout was designed around an abstraction called a "path"; was highly configurable; and offered scheduling and resource allocation policies that provided predictable performance under load.
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