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Implementing a modular object-oriented operating system on top of Chorus
1993
Distributed Systems Engineering
Building distributed operating systems benefits from the micro-kernel approach by allowing better support for modularization. ...
A more modular, or object oriented approach is needed if we wish to cross that barrier of complexity that is holding back distributed operating system development. ...
Work in the operating system community has tried to deal with these issues by re-visiting our existing operating systems and looking at the minimum abstractions necessary to build distributed operating ...
doi:10.1088/0967-1846/1/1/002
fatcat:plpjjoyvvfhg7cs4vswkdytlgu
Generic virtual memory management for operating system kernels
1989
Proceedings of the twelfth ACM symposium on Operating systems principles - SOSP '89
The Chorus" architecture is designed to support new generations of open, distributed, scalable operating systems. ...
It allows the integration of various families of operating systems, ranging from small real-time systems to general-purpose operating systems, in a single distributed environment. ...
Sollle distributed operating systems support distributed virtual memory schemes such as [S] . ...
doi:10.1145/74850.74863
dblp:conf/sosp/AbrossimovR89
fatcat:wxtte7rnvnhuhdm32xbqlfnrai
Page 34 of American Sportswear & Knitting Times Vol. 64, Issue 6
[page]
1995
American Sportswear & Knitting Times
(Bottom), using the PDM system by Microdynamics at Chorus Line.
casualwear; Molly Malloy, missy/petite dresses, and Jazz Kids, children’s dress- es and sportswear. Divisions operate autonomously. ...
Based in Vernon, Calif., a Los Angeles suburb, Chorus Line was founded in 1975, with $60,000, by the former New Yorker and Mark Steinman, president and chief operating officer. ...
Extending the Chorus micro-kernel to support continuous media applications
[chapter]
1994
Lecture Notes in Computer Science
This paper describes a design for distributed multimedia support in the Chorus micro-kernel operating system environment which provides the necessary soft real-time support while simultaneously running ...
Currently, popular operating systems are unable to support the end-to-end real-time requirements of distributed continuous media. ...
We would also like to thank our colleagues at CNET, particularly Jean-Bernard Stefani, Francois Horn and Laurent Hazard, for their close co-operation in this work. ...
doi:10.1007/3-540-58404-8_6
fatcat:gsbmtue5cnazflkh44maughhni
Micro-kernel support for continuous media in distributed systems
1994
Computer networks and ISDN systems
Currently popular operating systems are unable to support the end-toend real-time requirements of distributed continuous media and the integration of continuous media communications software into such ...
This paper describes an approach to distributed multimedia support in a micro-kernel operating system environment which provides the necessary soft real-time support while simultaneously running conventional ...
Despite these advances, little attention has yet been paid to the role of the operating system in distributed multimedia support. ...
doi:10.1016/0169-7552(94)90104-x
fatcat:ic3ro7ldeferlbcipd4lw2gsba
Music scene description: Toward audio-based real-time music understanding
2002
Journal of the Acoustical Society of America
and chorus sections. ...
This paper reports a research project intended to build a real-time music-understanding system producing intuitively meaningful descriptions of real-world musical audio signals, such as the melody lines ...
The editor has been ported on several operating systems (Linux, SGI IRIX, and Microsoft Windows) . ...
doi:10.1121/1.4777875
fatcat:4ofvblowh5aq3k755s7lu5wat4
Synchronous thread management in a distributed operating system's micro kernel
[chapter]
1997
Lecture Notes in Computer Science
This paper describes an experiment in programming part of an operating system kernel using the Esterel synchronous programming language. ...
It also presents how m ultiple interconnected instances of this executive can be synchronized, yielding a distributed real-time platform operating under a sparse-time model. ...
There are two concurrent sources of events in an operating system : threads, invoking system operations or raising exceptions, and hardware interrupts. ...
doi:10.1007/bfb0002881
fatcat:br4sxohrpjg7piu6skxudumlky
A comparison of three microkernels
1995
Journal of Supercomputing
MICROKERNELS The solution appears to be to have a new kind of operating system that is effectively a compromise between having no operating system at all and having a large monolithic operating system ...
The other nodes do not run any operating system at all. ...
Chorus Chorus began in 1980 as a research project at INRIA, near Paris, devoted to experimenting with distributed systems technology. ...
doi:10.1007/bf01245395
fatcat:rscqsqbxgrfwjhse3quwvd4sgq
Architectural principles and techniques for distributed multimedia application support in operating systems
1995
ACM SIGOPS Operating Systems Review
of splitlevel system structuring whereby key system functions are carried out co-operatively between kernel and user level components and iii) the principle of decoupling of control transfer and data ...
Our suggestions arise from experiences in implementing a Chorus based real-time and multimedia support infrastructure within the SUMO project. ...
We have designed our distributed realtime/ multimedia support system as a Chorus 'personality' implemented partly in kernel space and partly as a user level library to be linked with native Chorus applications ...
doi:10.1145/219282.219286
fatcat:pkxbjtrrdrgmvhd4p62dbvqxge
Evolution of electron distribution driven by nonlinear resonances with intense field-aligned chorus waves
2018
Journal of Geophysical Research - Space Physics
These properties are combined in a nonlocal operator acting on the electron distribution function. ...
When multiple waves are present, we average the obtained operator over the observed distributions of waves and examine solutions of the resultant kinetic equation. ...
The operators of this equation are averaged over the observed distribution of wave characteristics. ...
doi:10.1029/2018ja025654
fatcat:mnrok3dqlfa2tjzap3qz3ucojy
Performance and calibration of the CHORUS scintillating fiber tracker and opto-electronics readout system
1995
Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment
An essential component of the CERN WA95/CHORUS experiment is a scintillating ber tracker system for precise track reconstruction of particles. ...
The tracker design, its opto-electronics readout and calibration system are discussed. Performances of the detector are presented. presented by Dirk Rondeshagen to ...
The CHORUS detector is fully operational and physics data taking has started in May 1994. The schematic diagram of the CHORUS detector is depicted in Figure 1 . ...
doi:10.1016/0168-9002(95)00734-2
fatcat:cpalaipa3rhdzlptjysdy76dh4
System Support for Distributed Multimedia Applications with Guaranteed Quality of Service
[chapter]
1995
High Performance Networking
system. ...
As an illustration, we present the design of a File Server modified for providing guaranteed access time and its interactions with the QoS manager in the context of a distributed microkernel-based operating ...
Access Time Problems of OM OM is an independent system server of the Chorus/MiX Operating System (Rozier et al., 1988) . ...
doi:10.1007/978-0-387-34949-7_7
fatcat:aizre3xy6fellihye2c6lari7m
The CHORUS scintillating fiber tracker and opto-electronic readout system
1998
Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment
A scintillating ber tracker system consisting of more than one million bers has been successfully constructed and made operational for the CERN WA95/CHORUS experiment. ...
The design and construction of the tracker system as well as its opto-electronic readout are described. The performance of the detector with high energy muons is presented. 2 ...
We are also indebted to the SPS sta for the ecient accelerator operation, to L. Gatignon for the West Area test beams, and to C. Lasseur and the CERN survey group. ...
doi:10.1016/s0168-9002(98)00276-9
fatcat:iy6o3ppkxbeo5i3zalcuzjzx6y
Circle canon chorus system used to enjoy a musical ensemble singing "Frog Round"
2007
Proceedings of the 7th international conference on New interfaces for musical expression - NIME '07
We proposed a circle canon system for enjoying a musical ensemble supported by a computer and network. ...
Using the song "Frog round", which is a popular circle canon chorus originated from a German folk song, we produced a singing ensemble opportunity where everyone plays the music together at the same time ...
However, to participate in such an ensemble, a high skill of operation is required, and everyone can not enjoy an ensemble using the system available to them. ...
doi:10.1145/1279740.1279840
dblp:conf/nime/NakamotoK07
fatcat:33p5zb5eevcb7e7ltdvqv2rnm4
Supporting Continuous Media Applications in a Micro-Kernel Environment
[chapter]
1994
Architecture and Protocols for High-Speed Networks
Currently, popular operating systems are unable to support the end-toend real-time requirements of distributed continuous media. ...
BACKGROUND ON CHORUS Chorus, conceived at INRIA, France, is a micro-kernel based operating system which supports the implementation of conventional operating system environments through the provision of ...
Like Chorus ports, rtports are named globally and can be accessed in a location independent fashion from anywhere in the distributed system. ...
doi:10.1007/978-1-4757-4536-8_13
fatcat:bxdmagajxjatfmibufssqhh6ni
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