distributed application support environmentcomputing dictionary

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Distributed Component Object Modelcomputing dictionary

<computer programming> (DCOM) Microsoft's extension of their Component Object Model (COM) to support objects distributed across a network. DCOM has been submitted to the IETF as a draft standard. Since 1996, it has been part of Windows NT and is also available for Windows 95.

Unlike CORBA, which runs on many operating systems, DCOM is currently (Dec 1997) only implemented by Microsoft for Microsoft Windows and by Software AG, under the name "EntireX", for Unix and IBM mainframes. DCOM serves the same purpose as IBM's DSOM protocol.

DCOM is broken because it's an object model that has no provisions for inheritance, one of the major reasons for object-oriented programming in the first place.

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Acronym: DCOM

(01 May 2000)

Distributed Computing Environmentcomputing dictionary

(DCE) An architecture consisting of standard programming interfaces, conventions and server functionalities (e.g. naming, distributed file system, remote procedure call) for distributing applications transparently across networks of heterogeneous computers. DCE is promoted and controlled by the Open Software Foundation (OSF).

Usenet newsgroup: comp.soft-sys.dce.

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(01 Mar 1994)

distributed databasecomputing dictionary

A collection of several different databases that looks like a single database to the user. An example is the Internet Domain Name System (DNS).

(01 Mar 1994)

Distributed Data Managementcomputing dictionary

<protocol, database design> (DDM) An IBM data protocol architecture for data management services across distributed systems in an SNA environment.

DDM provides a common data management language for data interchange among different IBM system platforms.

Products supporting DDM include AS/400, System/36, System/38 and CICS/DDM.

On the AS/400, DDM controls remote file processing. DDM enables application programs running on one AS/400 system to access data files stored on another system supporting DDM. Similarly, other systems that have DDM can access files in the database of the local AS/400 system. DDM makes it easier to distribute file processing between two or more systems.

OS/400 Distributed Data Management V3R6 Reference.

(01 Apr 1999)

distributed data processingcomputing dictionary

You have spelt this word correctly and it exists in the computing dictionary, but we have no definition for it yet. Please do suggest it for inclusion, or supply a suitable definition via the community pages.

distributed effortmedical dictionary

In psychology, learning that involves small units of work and interpolated rest periods, as contrasted with massed learning, in which the individual works continually until the skill is mastered.

(05 Mar 2000)

Distributed Eiffelcomputing dictionary

["Distributed Eiffel: A Language for Programming Multi-Granular Distributed Objects on the Clouds Operating System", L. Gunaseelan et al, IEEE Conf Comp Langs, 1992].

(01 Mar 1994)

Distributed Logic Programmingcomputing dictionary

<programming language>

(DLP) A logic programming language similar to Prolog, combined with parallel object orientation similar to POOL. DLP supports distributed backtracking over the results of a rendezvous between objects. Multi-threaded objects have autonomous activity and may simultaneously evaluate method calls.

["DLP: A Language for Distributed Logic Programming", A. Eliens, Wiley 1992].

Acronym: DLP

(01 Feb 1996)

distributed managementcomputing dictionary

You have spelt this word correctly and it exists in the computing dictionary, but we have no definition for it yet. Please do suggest it for inclusion, or supply a suitable definition via the community pages.

Distributed Management Environmentcomputing dictionary

(DME) An OSF standard. It had reached the RFT stage.

Acronym: DME

(01 Feb 1995)

distributed memorycomputing dictionary

<computer architecture> The kind of memory in a parallel processor where each processor has fast access to its own local memory and where to access another processor's memory it must send a message via the inter-processor network.

Opposite: shared memory.

(01 Mar 1995)

Distributed Network Operating Systemcomputing dictionary

<operating system> (DNOS) A proprietary operating system for Texas Instruments 990-series minicomputers.

Acronym: DNOS

(01 Feb 1996)

Distributed Operating Multi Access Interactive Networkcomputing dictionary

(DOMAIN) The proprietary network protocol used by Apollo workstations.

(01 Feb 1995)

Distributed Processescomputing dictionary

(DP) The first concurrent language based on remote procedure calls.

["Distributed Processes: A Concurrent Programming Concept", Per Brinch Hansen CACM 21(11):934-940 (Nov 1978)].

(01 Mar 1994)

Distributed Queue Dual Buscomputing dictionary

<computing standard>

<networking> (DQDB) An IEEE standard for metropolitan area networks.

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Acronym: DQDB

(01 May 2000)

Distributed Smalltalkcomputing dictionary

["The Design and Implementation of DIstributed Smalltalk", J. Bennett, SIGPLAN Notices 22(12):318-330 (Dec 1980)].

(01 Mar 1994)

distributed systemcomputing dictionary

A collection of (probably heterogeneous) automata whose distribution is transparent to the user so that the system appears as one local machine. This is in contrast to a network, where the user is aware that there are several machines, and their location, storage replication, load balancing and functionality is not transparent. Distributed systems usually use some kind of client-server organisation.

Distributed systems are considered by some to be the "next wave" of computing.

Distributed Computing Environment is the Open Software Foundation's software architecture for distributed systems.

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(01 Mar 1994)

distributed systemscomputing dictionary

Preferred term: distributed system