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Distributed and systems
AIX v2 included full TCP / IP networking, as well as SNA and two networking file systems: NFS, licensed from Sun Microsystems, and Distributed Services ( DS ).
Distributed computing is a field of computer science that studies distributed systems.
Distributed computing also refers to the use of distributed systems to solve computational problems.
** Distributed databases and distributed database management systems.
** Distributed information processing systems such as banking systems and airline reservation systems.
Category: Distributed data storage systems
" Distributed systems " cover grid information security, networking, resource management, large-scale simulation and energy megasystems, among others.
* Distributed systems: the Defense Technology Experimental Research ( DETER ) testbed for Internet security, the Biomedical Informatics Research Network in health informatics, and Internet mapping efforts.
Distributed hash tables ( DHTs ) are a class of decentralized distributed systems that provide a lookup service similar to a hash table: ( key, value ) pairs are stored in the DHT, and any participating node can efficiently retrieve the value associated with a given key.
Distributed systems gained sway as a way to design systems, and the Java programming language was introduced with its own virtual machine as another step in abstraction.
The availability of industrial Distributed Temperature Sensing ( DTS ) systems that measure in real time temperatures all along the cable is a first step in monitoring the transmission system capacity.
In the UK work on the Experimental Packet Switched system circa 1973, the need to define so called higher level protocols above the HDLC link level communications protocol and the content of an NCC ( UK ) publication ' Why Distributed Computing ' resulting from considerable research into future configurations for computer systems resulted in the UK presenting the case for an International Standards Committee to cover this area at the ISO meeting in Sydney in March 1977.
The exact copy nature of spam using open relays made it easy to create bulk e-mail detection systems such as Vipul's Razor and the Distributed Checksum Clearinghouse.
Distributed revision control systems ( DRCS ) take a peer-to-peer approach, as opposed to the client-server approach of centralized systems.
* List of file systems, Distributed file systems section
Exokernel is an operating system kernel developed by the MIT Parallel and Distributed Operating Systems group, and also a class of similar operating systems.
Examples include IBM's System Object Model ( SOM / DSOM ), Sun Microsystems ' Distributed Objects Everywhere ( DOE ), NeXT's Portable Distributed Objects ( PDO ), Digital's ObjectBroker, Microsoft's Component Object Model ( COM / DCOM ), and any number of CORBA-based systems.
* Distributed transaction processing, in computer systems, usually refers to the X / Open model of co-ordinating transactions between multiple participants

Distributed and are
Atomic semantics are defined formally in Lamport's " On Interprocess Communication " Distributed Computing 1, 2 ( 1986 ), 77-101.
An example of an advanced DBMS is Distributed Data Base Management System ( DDBMS ), a collection of data which logically belong to the same system but are spread out over the sites of the computer network.
** Leafs in syntactic trees spell out morphemes: Distributed morphology – leafs are morphemes
Safe semantics are defined formally in Lamport's " On Interprocess Communication ", published in Distributed Computing 1, 2 ( 1986 ), 77 – 101.
Distributed switching is an architecture in which multiple processor-controlled switching units are distributed.
* Distributed file serving, e. g., FTP or WWW servers could be mirrored in a remote location without needing to propagate files that are never accessed.
Distributed denial of service ( DDoS ) attacks are common, where a large number of compromised hosts ( commonly referred to as " zombie computers ", used as part of a botnet with, for example ; a worm, trojan horse, or backdoor exploit to control them.
Other architectures are Unisys – formerly Univac – Distributed Computing Architecture ( DCA ) and – formerly Burroughs – Burroughs Network Architecture ( BNA ), both largely obsolete by 2012.
* Distributed garbage collection – ensuring that references held by clients of interfaces are released when, for example, the client process crashed, or the network connection was lost.
Distributed feedback lasers ( DFB ) are the most common transmitter type in DWDM-systems.
Windows domain clients may subscribe to a Windows service called Distributed Link Tracking to track the changes in files and folders to which they are interested.
Differently from the general Distributed CO, Distributed SS2PL exists automatically when all local components are SS2PL based ( in each component CO exists, implied, and the vote ordering strategy is now met automatically ).
Distributed systems are generally recognized to be MIMD architectures ; either exploiting a single shared memory space or a distributed memory space.
The Basic Problems of Distributed AI are:
Distributed downloading protocols in general provide redundancy against system problems, reduces dependence on the original distributor and provides sources for the file which are generally transient and therefore harder to trace by those who would block distribution compared to the situation provided by limiting availability of the file to a fixed host machine ( or even several ).
Within the HCF, there are two methods of channel access, similar to those defined in the legacy 802. 11 MAC: HCF Controlled Channel Access ( HCCA ) and Enhanced Distributed Channel Access ( EDCA ).
Distributed generation plants are mass-produced, small, and less site-specific.
Distributed energy resource ( DER ) systems are small-scale power generation technologies ( typically in the range of 3 kW to 10, 000 kW ) used to provide an alternative to or an enhancement of the traditional electric power system.
Distributed control systems ( DCSs ) are dedicated systems used to control manufacturing processes that are continuous or batch-oriented, such as oil refining, petrochemicals, central station power generation, fertilizers, pharmaceuticals, food and beverage manufacturing, cement production, steelmaking, and papermaking.
* Distributed Control System, a control system in which the controller elements are not central in location but are distributed throughout the system with each component sub-system under the control of one or more controllers

Distributed and groups
At the forefront of the standards groups is the Department of Defense's Advanced Distributed Learning initiative with its SCORM standards.
" The novel is also notable for a number of incidental descriptions of other cults or groups, such as the Reformed Distributed Republic, which in contrast to the more elaborate " phyles " impose a minimal social protocol.
Distributed power thus describes the physical distribution throughout the length of a train of separate motive power groups.

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