FACTOID # 137: Sick people is Switzerland stay in hospital for longer than the people of any other nation - almost 10 days, on average. Switzerland also has the world's highest number of hospital beds per capita.
 
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Encyclopedia > KeyKOS

KeyKOS is a persistent, pure capability-based operating system. It is a predecessor of EROS, the Extremely Reliable Operating System.


External links

  • KeyKOS Home Page (http://www.cis.upenn.edu/~KeyKOS/)

  Results from FactBites:
 
KeyKOS Nanokernel Architecture (8483 words)
KeyKOS is characterized by a small set of powerful and highly optimized primitives that allow it to achieve performance competitive with the macrokernel operating systems that it replaces.
KeyKOS consists of the nanokernel, which can run in as little as 100 Kilobytes of memory and includes all of the system privileged code, plus additional facilities necessary to support operating systems and applications.
KeyKOS is founded on three architectural concepts that are unfamiliar to most of the UNIX community: a stateless kernel, single-level store, and capabilities.
  More results at FactBites »


 

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