What is meant by Component Object Model?

Description. Component Object Model (COM) COM is a platform-independent, distributed, object-oriented system for creating binary software components that can interact. COM is the foundation technology for Microsoft’s OLE (compound documents) and ActiveX (Internet-enabled components) technologies.

How do COM objects work?

COM defines the essential nature of a COM object. In general, a software object is made up of a set of data and the functions that manipulate the data. A COM object is one in which access to an object’s data is achieved exclusively through one or more sets of related functions.

What are COM components in C#?

Component Object Model (COM) is a method to facilitate communication between different applications and languages. COM is used by developers to create re-usable software components, link components together to build applications, and take advantage of Windows services.

What is COM DLL?

A COM DLL is simply a DLL with Com-specific entry points. COM exposes class factories for creating com objects, so there needs to be a way of getting access to one of the class factories implemented by a COM server.

What are COM servers?

A COM server is any object that provides services to clients; these services are in the form of COM interface implementations that can be called by any client that is able to get a pointer to one of the interfaces on the server object.

Which of the following does COM object contain or implement?

The correct answer is C. A COM object contains one or more interfaces. 4.

What is COM programming?

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. For some applications, COM has been replaced at least to some extent by the Microsoft .

What is the difference between DLL and COM DLL?

COM is a component model while DLL is a dynamically linked library (and also the file extension often used for such binaries). So they are kinda hard to compare. A DLL can contain implementation for COM objects. And you can certainly create COM objects in C# if you want.

How do you create a new object in C#?

We can Create objects in C# in the following ways: 1) Using the ‘new’ operator: A class is a reference type and at the run time, any object of the reference type is assigned a null value unless it is declared using the new operator.

What does Component Object Model mean?

What Does Component Object Model (COM) Mean? Component Object Model (COM) is a simple Microsoft specification method that defines a binary standard for exchanging code between two systems, regardless of the OS or programming language.

What is a distributed Component Object Model?

Distributed Component Object Model ( DCOM ) is a proprietary Microsoft technology for communication between software components on networked computers.

What is a Project Object Model?

A Project Object Model or POM is the fundamental unit of work in Maven. It is an XML file that contains information about the project and configuration details used by Maven to build the project.

What is a distributed component?

Distributed Component Object Model (DCOM) is a proprietary Microsoft technology that allows Component Object Model (COM) software to communicate across a network. DCOM is enhanced with COM applications to facilitate remote procedural calls and a Distributed Computing Environment ( DCE ) dedicated to Windows application and platform support.