An assembly is a file that is automatically generated by the compiler upon successful compilation of every .NET application. It can be either a Dynamic Link Library or an executable file. It is generated only once for an application and upon each subsequent compilation the assembly gets updated. The entire process will run in the background of your application; there is no need for you to learn deeply about assemblies. However, a basic knowledge about this topic will help you to understand the architecture behind a .NET application.

.Net Framework is a Platform or development Environment to seamlessly create web-applications that are accessible through client machines from across the Globe. These web-applications adopt open standards such as extensible Markup Language (XML), Hyper Text Transfer Protocol (HTTP), and Simple Object Access Protocol (SOAP) to interact with applications that are available in other platforms.

.Net Framework class library: This class library Includes Predefined sets of functionality that developers can use in their own applications. The library consists of three key components:

• ASP .NET

• Windows Forms

• ADO .NET

Different version of Dot net Framework :-

(1).NET Framework 1.0

First .NET Framework was released in 2002. Its supported in  Windows 98, NT 4.0, 2000, and XP.

(2).NET Framework 1.1

Compact framework is taken as new version for small devices.

(3).NET Framework 2.0

New Personalized Features for ASP.NET, such as support for themes, skins and webparts.

(4).NET Framework 3.0

NET Framework 3.0 consists of four major new components:

(5).NET Framework 3.5

This include new features that’s are in  C# 3.0 and VB.NET 9.0 compile.

Also include new feature in ADO.NET that is paging .

. The .NET framework provides environment to create object-oriented programming model that’s helps us to create all type of Web applications . Here the methods of creating window-based application or we can say window-based components is same as creating XML Web Services is same. When we create a .NET application we create a class that class contains or define the functionality of the application in term of properties event and methods of that class .Also in web application the code that control on web application comes under that class. These classes can take advantage of Object oriented popular feature just like Inheritance, encapsulation and polymorphism. So we can also say that classes are the fundamental for programming in .Net environment .

NET Framework has come up as one of the most significant changes to the Windows platform since its introduction, relatively to the impact of Visual BASIC. It has become the first choice of software developers since its launch. We can jot down the significances in the following manner:

•Availing the operating system with features and functions that earlier used to be provided individually by programming languages and tools from various sources.

•Providing programmers a common channel of accessing framework features, no matter what programming language has been used.

The Dot Net framework consists of two main component one of them is Dot Net framework class library and another is CLR.

Some of these components which is generally asked in interview i.e dot net interview questions are as follow:

Class loader: its helps in loading class at runtime.

Security engine: as the name suggest its helps in security restrictions and enforces security.

Code manager: Its works is to manage the code during execution.

The .NET strategy extends the concept of software reuse to the Internet, allowing developers to concentrate on their specialties without having to implement every component of every application. Instead, companies can buy Web services and devote their time and energy to developing their products.

Dot net Remoting system allows client to call objects in Remoting boundaries. This boundary includes Application domains, and processes in computer. To communicate between server objects and client objects we need to use object reference of server objects in client application in dot net Remoting. When we create a instance of remote objects using new keyword client get a reference to this server objects. After getting this reference client can call methods on server objects this object resides in client’s process not on different computer.

Since this framework is so flexible, programmers tend to use it in order to code their applications, programming languages such as C++, C#, Visual Basic, J++.net and even Delphi are popular languages which can be handled by the .Net framework however, it is not limited to only these languages because it has been developed to provide language independence as well as interoperability and security.

 

 

A recent field survey by NBC (NY Times, October 17, 2008) found free Internet streaming TV viewership to be gaining on conventional television – cable, satellite and terrestrial broadcast. By surpassing the quarter mark of total viewing of NBC’s TV episodes as yardsticks, NBC has shown that there’s no stopping Internet TV now. As with email, messaging, conferencing and telephony, Free TV on PC will soon become a standard internet feature.

Boosted by power-packed PCs, multi-media peripherals and broadband transmission, all the historical setbacks upon Internet TV are now a thing of the past. The volume of internet users has also long exceeded the critical mass level for the economy of scale in both technological and commercial terms. This is well-demonstrated by the wide spectrum of industries already exercising a footprint on the web so why not Television?

The most well-known versions of television available on the net today are Internet TV, IPTV (Internet Protocol Television), Broadband TV and User Generated Content TV. They may be known by different names but basically, Internet TV is free and unrestricted video streaming, IPTV is a type of commercial TV entertainment, Broadband TV is similar to Internet TV but more Internet than TV as compared to the former which is relatively more TV than Internet and User Generated Content TV is short-clip type streaming best depicted by YouTube.

Like the other free services that are already in existence on the net such as email, messaging ……, Internet TV is without question a win-win proposition for both providers and users. It’s essentially another platform of the media industry and this one is low-cost and easy entry for providers, not to mention it already enjoys an enormous patronage, and growing. Viewer-wise, it’s even harder to ignore the deal especially for those with the internet habit and routine in their daily life.

It’s not uncommon to see people ‘multi-tasking’ TV and PC these days, especially among the young. Sometimes, it’s even purportedly necessary for their new-breed work or studies. Most if not all modern offices and homes have internet wired PCs anyway. So wouldn’t streamlining the two activities into one be but only common sense? Plus with this, viewers are not the only one globally mobile, so will be their TV programming too!

True to form of the dynamic world of internet, the web is already inundated with free TV on PC of all shapes and sizes. Many are expectedly quite worthless. Fortunately, the supporting industries have not disappointed either. There is no shortage of computer programs retailing on the net itself that can pick out and organize the choice TV programming for you with their proprietary software. A handful of the industry pioneers are excellent value at only a fraction of what the big-time cable and satellite providers cost.

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