Overview of Microsoft Dot Net Platforms

1. Overview of Microsoft
.NET Frameworks

2. .NET – What Is It?
 It’s a Software platform
 It’s Language neutral
 In other words:
 .NET is not a language (It’s runtime
environment and a library of classes
(Assemblies) for writing and executing programs
in any compatible language)

3. What Is .NET
 .Net is a framework for developing web-based
and windows-based applications within the
Microsoft environment.
 The .Net framework has moved application
development paradigm from client-centric to
server-centric.

4. Base Class Library
Common Language Specification
Common Language Runtime
ADO.NET: Data and XML
VB VC++VC#
ASP.NET: Web Services
and Web Forms
JScript Etc…
Windows
Forms
Framework, Languages, And Tools

5. The .NET Framework The Evolution
2.0
(2005)
• Common Language Runtime
• Base Class Library
• WinForms, Asp.net, ADO.NET
3.0
(2006)
• WPF
• WCF
• WF
• Card Space
3.5
(2008)
• LINQ
• ADO.Net entity Framework
4.0
(2010)
• Parallel LINQ
• Task Parallel Library
4.5
(2012)
• Modern UI Runtime
• Task based Async. Model

6. Common Language Runtime
(CLR)
CLR works like a virtual machine in executing all
languages.
All .NET languages must obey the rules and
standards imposed by CLR. Examples:
 Object declaration, creation and use
 Data types, language libraries
 Error and exception handling
 Etc…

7. Common Language Runtime
 Development
 Mixed language applications
 Common Language Specification (CLS)
 Common Type System (CTS)
 Standard class framework
 Automatic memory management
 Consistent error handling and safer execution
 Potentially multi-platform
 Primary important things of CLR
 Garbage connection.
 CAS (Code Access Security)
 CV (Code verification)
 IL to native code translation

8. Compilation in .NET

9. Intermediate Language (IL)
 .NET languages are not compiled directly to
machine code. They are compiled to an
Intermediate Language (IL) by respective
language compiler.
 CLR gets the IL code and recompiles it to
machine code. The recompilation happens in
just-in-time (JIT) meaning it is done as soon as a
function or subroutine is called.
 The JIT code stays in memory for subsequent
calls. In cases where there is not enough
memory it is discarded thus making JIT process
interpretive.

10. Languages
 Languages provided by Microsoft
 VB, C++, C#, J#, Jscript, F#
 Third-parties are building
 APL, COBOL, Pascal, Eiffel, Haskell, ML,
Oberon, Perl, Python, Scheme, Smalltalk……..

11. .NET Supported Languages
C
C#
C++
Caml
CAT
CAT (Christopher Diggins)
Java
JavaScript
Lexico
LISP
DotLisp (Rich Hickey)
L# (L Sharp .NET) - LISP-based script
language
FOIL - (Rich Hickey and Eric Thorsen)
RDNZL - .NET Layer for Common Lisp
(Edi Weitz)
LOGO
IL/MSIL
MSIL (Microsoft)
ilasm (IL Assembler Microsoft)
ilasm (Mono/Ximian)
Portable.NET Assembler
Lua
Mercury
Mixal Assembly Language
Modula-2
GPM/CLR (Queensland University of
Technology)
Mondrian
COBOL
CULE
Eiffel
Forth
Scheme
Smalltalk
SML
Synergy
Tcl/Tk
Visual Bas
FORTRAN
Haskell
Oberon
Nemerle
Pan
Perl
Pascal variants:
Delphi (Borland)
PHP
Ada
APL
Dyalog APL (Dyalog Ltd)
AsmL
BETA
Boo
Prolog
Python
IronPython (Microsoft)
Ruby
RPG
Scala
ic
Visual Basic.NET (Microsoft)
And Counting…

12. Windows Forms
 .Net Framework is for Building Rich Clients
RAD (Rapid Application Development)
Rich set of controls
Data bound aware
ActiveX® Support
Printing support
Unicode support
UI inheritance
Easy deployment
Rapid learning curve. A software professional can
be quickly trained in suitable .net compatible
language & deployed in development.

13. ASP.NET
ASP.NET,the platform services that allow to program
Web Applications and Web Services in any .NET
language
ASP.NET Uses .NET languages to generate HTML
pages. HTML page is targeted to the capabilities of the
requesting Browser
ASP.NET “Program” is compiled into a .NET class and
cached the first time it is called. All subsequent calls
use the cached version.

14. ASP.NET
 Logical Evolution of ASP
Supports multiple languages
Improved performance
Control-based, event-driven execution model
More productive
Web server (Mostly Windows based server) need
run time (.Net framework) no client side installation
needed for running asp.net application. Just a
suitable web browser need to access asp.net
application.

15. Web Services
 A technical definition
“A programmable application component accessible
via standard Web protocols”
 It is just an application that exposes its features
and capabilities over the network using XML.
 Any compatible development environment can
consume the web service.

16. ADO.NET (Data and XML)
 New objects (e.g., DataSets)
 Language neutral data access
 Uses same types as CLR.
 Six important components are
 Connection,
 Command,
 Data Reader,
 Dataset Object,
 Data Adapter,
 Data View.

17. Summary
 The .NET Framework
Dramatically simplifies development and
deployment process as well as time for the same.
Provides robust and secure execution environment
for application development for all type of
application i.e. desktop, web, mobile, cloud etc…
Small learning curve. Developers from other
environments can seamlessly transfer to .net
technologies.

18. Thank You
- A presentation by Abhijit B.