upNemesis
Entries
Nemesis, SourceForge http://nemesis.sourceforge.net/An operating system with principles. All-new lightweight kernel OS; focus: support time-sensitive uses needing consistent Quality of Service (QoS), such as those using multimedia. Fine-grained guaranteed levels of all system resources including CPU, memory, disk and network bandwidth. Downloads, manuals, fine OS map.
)
Nemesis (computing) http://en.wikipedia.org/wiki/Nemesis_(computing)Growing article, with links to many related topics. Wikipedia.
Nemesis http://www.cl.cam.ac.uk/research/srg/netos/old-projects/nemesis/Supports time-sensitive programs needing consistent Quality of Service (QoS), e.g., multimedia; fine-grained guaranteed levels of all system resources: CPU, memory, bandwidth of network, disk. Archive site, Systems Research Group: Networks and Operating Systems; University of Cambridge.
Related categories
Open Source This category lists operating systems (OSs) based on open source code. Some such OSs have closed source variants (BeOS, DOS, Unix, VMS), or straddle these two licensing models (QNX). Open Source
computer programs (OSs are programs) are those that include source code, and/or for which the source code is freely available, or made available without a fee or limited permissions. On this page, OSs are arranged in three groups and levels: 1) Top group: types or classes of OS. 2) Middle group: OSs for which there are more than one instance of an OS of this name/type, an OS family. 3) Bottom group: specific OSs, individual instances; there is only one OS of this name/type. These links occupying the top of this page, above the links with descriptions, lead to other directory categories which hold open source OSs which have other, more distinctive traits that identify them as members of some class of OS found in the current directory taxonomy. OSs listed in this category are those that have no other distinctive traits by which to classify them in the current taxonomy. These all seem to have monolithic kernels. An OS is listed in this category if there seems no clearer, more specific category for it. This category also has some other links that are hard to fit elsewhere, of which there are always a few.
(less...) All operating systems (OSs) in this category support POSIX standards fully or partly. POSIX is an acronym for: Portable Operating System Interface for UniX. Much like TRON, POSIX is not a body of
computer code that is compiled and run on some processor. Rather, it is a set of standards (IEEE 1003.1): interfaces, design guidelines, software design specifications, defining (for creating) the computer code that will become language interfaces between an OS kernel and its programs, to give compatibility when moving programs between compatible systems. POSIX is made mostly of features from BSD Unix and Unix System V. Much like Open Source software, all POSIX standards are copyrighted (by the Institute of Electrical and Electronics Engineers, Inc., IEEE; new versions have joint copyright by IEEE and Open Group), but available for use by software developers anywhere in the world for free. Thus the OS architecture based on POSIX is an open architecture that invites and welcomes cloning and interoperability. On this page, OSs are arranged in three groups and levels: 1) Top group: issues spanning multiple unrelated OSs. 2) Middle group: types or classes of OS. 3) Bottom group: specific OSs, individual instances; there is only one OS of this name/type.
(less...) Quality of Service (QoS) is an issue of ever growing importance as the world becomes ever more reliant on networks controlled by computers. QoS is of maximum importance as network traffic rises and
networks grow congested. With streaming media being delivered over networks, it is even more vital to maintain reliability and high quality in transmission. QoS issues can only grow larger in time. Even when/where network connections and protocols are very reliable and of high quality, operating systems (OSs) can introduce delays and errors in transmission. Thus network operating systems (NOSs) must also maintain Quality of Service guarantees, so the overall network continues to run reliably.
(less...) This category is for submicrokernel operating systems: OSs with non-monolithic architectures based on structures smaller than microkernels. Varieties and synonyms: lightweight kernel, nanokernel,
picokernel, femtokernel, exokernel, no-kernel, or closely related topics. Most, maybe all object-oriented OS architectures also qualify as submicrokernels. Traditional OS architectures limit application performance, flexibility, functionality by fixing interfaces and implementations of OS abstractions such as interprocess communication and virtual memory. Submicrokernels address these issues in varied ways. Most are runtime extensible. Exokernels address such issues by application-level management of physical resources: they put applications in control, to run 10x or more faster than normal OSs. On this page, OSs are arranged in three groups and levels: 1) Top group: types or classes of OS. 2) Middle group: OSs for which there are more than one instance of an OS of this name/type, an OS family. 3) Bottom group: specific OSs, individual instances; there is only one OS of this name/type.
(less...)(This section is quite beta and buggy, have patience. Thanks)
Thumbnails powered by Thumbshots