COM meaning in Information Technology ?

Answer: What is Component Object Model mean?

Component Object Model (COM) is a binary-interface standard for software components introduced by Microsoft in 1993. It is used to enable inter-process communication object creation in a large range of programming languages. COM is the basis for several other Microsoft technologies and frameworks, including OLE, OLE Automation, Browser Helper Object, ActiveX, COM+, DCOM, the Windows shell, DirectX, UMDF and Windows Runtime. The essence of COM is a language-neutral way of implementing objects that can be used in environments different from the one in which they were created, even across machine boundaries. For well-authored components, COM allows reuse of objects with no knowledge of their internal implementation, as it forces component implementers to provide well-defined interfaces that are separated from the implementation. The different allocation semantics of languages are accommodated by making objects responsible for their own creation and destruction through reference-counting. Type conversion casting between different interfaces of an object is achieved through the QueryInterface method. The preferred method of "inheritance" within COM is the creation of sub-objects to which method "calls" are delegated.

COM is an interface technology defined and implemented as standard only on Microsoft Windows and Apple's Core Foundation 1.3 and later plug-in application programming interface (API). The latter only implements a subset of the whole COM interface. For some applications, COM has been replaced at least to some extent by the Microsoft .NET framework, and support for Web Services through the Windows Communication Foundation (WCF). However, COM objects can be used with all .NET languages through .NET COM Interop. Networked DCOM uses binary proprietary formats, while WCF encourages the use of XML-based SOAP messaging. COM is very similar to other component software interface technologies, such as CORBA and Enterprise JavaBeans, although each has its own strengths and weaknesses. Unlike C++, COM provides a stable application binary interface (ABI) that does not change between compiler releases. This makes COM interfaces attractive for object-oriented C++ libraries that are to be used by clients compiled using different compiler versions.

reference

Full Form	Category
Componet Object Model	Academic & Science
Coleman (tx)	Airport Code
Communication Organization and Management	Business
Bnp Par Comac	Business
Cardiome Pharma Corporation	Business
ComOps Ltd	Business
Constructability, Maintainability and Operability	Business
Customer’s Own Material	Business
Computer Output On Microfilm	Computer Hardware
Chain Of Memories	Computing
Centralized Operation & Maintenance	Computing
Corporate Online Management	Computing
Centre Of Motion	Computing
Common Object Model	Computing
Computer Output to Microfiche	Computing
Computer Output to Micrographics	Computing
Component Object Model or communication	Computing
Communication Port	Computing
Computer Output Microfilm	Computing
Center Operator Manual	Computing
Component Oriented Middleware	Computing
Continuation Of Message	Computing
Computer On Module	Computing
Comoros	Country ISO Code
College of The Mainland	Educational Institute
College of Osteopathic Medicine	Educational Institute
Dos Command File (memory Image of Executable Program)	File Type
Compressed Unix File Archive (compact)	File Type
Control Of Mom	General
Crappy Object Model	General
Collecting Others' Money	General
Conceptual Object Model	General
Calling Only Moms	General
Change Of Mission	General
Country Of Manufacture	General
Communication Interface	General
Corvettes Of Minnesota	General
Cruise-O-Matic	General
Commercial Trailer	General
Council Of Ministers	Governmental
Central Office Mailing	Governmental
CHOMUN SAMOD	Indian Railway Station
Component Object Model	Information Technology
Candle Of the Month	Internet
Cardiac Output Monitor	Medical
Customer Owned Material	Messaging
Command	Military and Defence
Chief of Mission	Military and Defence
Collection Operations Management	Military and Defence
Commander	Military and Defence
Center of Mass	Military and Defence
Character-oriented Messages	Military and Defence
Computer Output To Microfilm	Military and Defence
Communications (port)	Networking
Common	Space Science
Computer Output Microfiche	Space Science
Commencing	Sports
Coleman Municipal Airport	Transport & Travel
Commercial	Web Technology
Commercial Firm	Web Technology