Persistence is the trait of maintaining system state despite discontinuities in operation or use, such as from one use of a program to the next use. In simple terms, persistent programs lose no, or little, information if the system becomes inoperative suddenly. As most computer users know, many computers often become inoperative suddenly, for two main reasons: the electric power stops, or a program crashes. Persistent operating systems (OSs) are OSs that maintain global persistence for all threads, processes, and programs that are running, as they run. When using persistent OSs, if the plug is pulled out suddenly, and the screen goes black, the computer can be plugged back in, and is up and running again quickly, almost exactly where it left off, losing no, or little (at most only a few seconds) work. Persistent Operating Systems Software Computers.
- Persistent data structure A data structure that always preserves the previous version of itself when it is modified.
- Persistent Systems A technology services company which was incorporated on 16 May 1990 as Persistent Systems Private...
- Persistent identifier A long-lasting reference to a document, file, web page, or other object.
- Persistent data Persistent Data denotes information that is infrequently accessed and not likely to be modified.
- Persistent memory Any method or apparatus for efficiently storing data structures such that they can continue to be...
- USS Persistent Meanings Three United States Navy ships.
- Eumel A Persistent System in Real Use: Experiences of the First 13 Years www
Eumel and successor L3, Persistent System in Real Use: Experiences of the First 13 Years, OSs made by GMD, have been used for 13 and 4 years respectively, for production in business, education. Over 2000 Eumel, 500 L3 have shipped since 1979, 1988. Both rely on persistence, with fault-surviving. Description, links. [ResearchIndex, CiteSeer] A Persistent System in Real Use: Experiences of the First 13 Years.
- Brief In Appreciation of Jef Raskin www
Brief praise of Raskin, Appreciation of Jef Raskin, and critique of Archy zooming interface, with references, by usability expert Don Norman who was at Apple with Raskin, during the early years. In Appreciation of Jef Raskin.
- Book The Humane Interface www
Book review of The Human Interface: New Directions for Interface Design, Humane Interface, by Jef Raskin, and the usual mass of forum comments. Many varied opinions. [Slashdot] The Humane Interface.
- Fast, BRiX: Advanced Computing Environment www
Fast, Advanced Computing Environment, no-kernel, single address space, data-centric, preemptive multithreaded, persistent, secure, multi-user operating system, with Crush function-based programming safe-language. Some code available. [Open Source, Artistic] BRiX: Advanced Computing Environment.
- The Crush/BRiX: An Experimental Language/OS Pair www
Crush/BRiX: An Experimental Language/OS Pair.
- Where The Expected Lifetime of Single Address Space Operating Systems www
Where stale pointers make it hard to re-use addresses, Expected Lifetime of Single Address Space Operating Systems, some have claimed that a 64-bit address space is so big that there is no need to ever re-use addresses. Results of kernel-level tracing of department workstations. The Expected Lifetime of Single Address Space Operating Systems.
- Mail Single Address Space Operating Systems Archive, Dartmouth www
Mail lists, Address Space Operating Systems Archive, Dartmouth, projects, biographies (BibTeX, HTML long, HTML sans abstracts), a few links to other SASOS sites. Single Address Space Operating Systems Archive, Dartmouth.
- Shapiro The EROS Alternative www
Shapiro interview in 'Open-Source Security' issue. EROS Alternative. Of open source OSs, most people think only Linux and OpenBSD. But another open-source OS's architecture may be more secure than either of them. [Information Security Magazine] The EROS Alternative.
- This EROS: A Fast Capability System www
This capability-based OS for commodity processors uses a one level storage model; store persistence is transparent to applications. Fast Capability System. Surprisingly, performance of this very high security system matches normal OSs. [ResearchIndex] EROS: A Fast Capability System.
- L4-based L4Ka Project www
L4-based microkernel systems, Project, for embedded systems to huge servers; Pistachio kernel. L4: tiny, fast, 2nd generation microkernel using hierarchical external pagers and guarded page tables. Goals: create, prove, establish new methodology for systems that helps manage growing complexity, minimize legacy dependence. L4Ka Project.
- Experimental Virtualised OS: Wombat www
Experimental port of Linux to run on L4/Iguana; is not intended to be standalone, OS: Wombat, best used as part of Iguana project. National ICT Australia. Virtualised OS: Wombat.
- Research Reflection in Logic, Functional and Object-Priented Programming: A Short Comparative Study www
Research paper; Department of Data Processing and Operations Research, Logic, Functional and Object-Priented Programming: A Short Comparative Study, University of Montreal, Quebec, Canada. ResearchIndex. Reflection in Logic, Functional and Object-Priented Programming: A Short Comparative Study.
- Research Object-Oriented Concurrent Reflective Languages can be Implemented Efficiently www
Research paper; OOPSLA October 1992. Concurrent Reflective Languages can be Implemented Efficiently. ResearchIndex. Object-Oriented Concurrent Reflective Languages can be Implemented Efficiently.
- Growing Operating System www
Growing article, System, with links to many related topics. Wikipedia. Operating System.
- Unbiased How Stuff Works: Operating Systems www
Unbiased enlightening tutorial with impartial description of how OSs work, Stuff Works: Operating Systems, and many related links. How Stuff Works: Operating Systems.
- Alexa: Persistent Operating Systems
Alexa Directory Top Sites: Persistent Operating Systems
- DMOZ: Persistent Operating Systems
dmoz.org Directory: Persistent Operating Systems