2. What is not?
Simply it is the technology from Microsoft, on which all
other Microsoft technologies will be depending on in
future.
■ It is a platform neutral framework.
■ provides a common set of class libraries
■ supports many programming languages,
including VB.NET, C# etc.
■ layer between the operating system and the
programming language.
.NET
Application
.NET
Framework
OS
+
Hardware
What is .NET ?
Not an OS
Not an Intermediate Language
Not a Compiler alone
Not a PL
Not a SW
Not an Emulator
4. Features of .NET framework
Strong XML support
Easy development of web application
OOPs support
Multi language support (70+)
Multi device support
Automatic memory management
Ease the deployment and configuration
Rich Functionality out of box
5. Components of .NET framework
Common Language Runtime (CLR)
Common Language Specification (CLS)
Framework Class Library (FCL)
Just in Time Compiler (JIT)
Common Type System (CTS)
6. Common Language Runtime
Core of .NET platform
Language independent Environment
Manages Thread execution ,Memory
&Garbage collection
VB. NET C#
C# complier
Microsoft Intermediate Language(MSIL)
VB.NET compiler
Common Language Runtime (CLR)
JIT(Just In Time)Compiler
Native Code
Simplifies Application Development
Access to metadata
Enforcement of code access security
Automation of object layout
7. Common Language Specification
Common level of language functionality
Set of rules that a language compiler must
adhere
Enables the creation of a club of CLS
compliant languages
Defines Types allowed on external
calls
C#
Common Language Specification
.NET framework
javaJ#Visual Basic C++
Actually a set of restrictions on the CTS
Describes the executable code and
runtime environment
8. Framework Class Library
Includes a huge collection of reusable
classes , interfaces, and value types
Organized in a hierarchical tree structure
and it is divided into Namespaces.
Provides the consistent base types that are
used across all .NET enabled languages
Managed classes that provide access to
System Services
Object oriented and easy to use in
program developments
Base Class Library Support
Thread Support COM Marshaler
Type Checker
Security Engine
Exception Manager
Debug Engine
MSIL to
native
Compilers
Code
Manager
Garbage
Collector
Class Loader
9. Advantages of .NET Framework
❶Consistent programming model :With .NET accessing data with a C# and VB.NET very
similar apart from slight syntactical differences. Both the programs need to import the System.
Data namespace, both programs establish connection with database and both programs run
a query and display the data.
❷Direct Support for Security : .NET framework enables the developer and the system
administrator to specify method level security.
❸Simplified Development efforts: The .NET Framework simplifies debugging with support
for Runtime diagnostics.
❹Easy application deployment and Maintenance : The .NET Framework makes easy to
deploy applications. The .NET Framework handles the details of locating and loads the
components.
❺Assemblies : Assembly is elementary unit in a framework application. It performs various
functions in programming with the .NET Frame work. Every computer that has the .NET
Framework installed with have the Global Assembly Cache.
