Submitted by Act Academy

2. Types of Computer Language

Low - Level Languages

High – Level Languages

3. S.No
Platform
Developer
Year
1
C
Dennis Ritchie
1972
2
C++
Bjarne Strousstrup
1980
3
JAVA
James Gosling (Sun
Microsystem)
1995
4
PHP
Rasmus Ledorf
1995
5
VB 6.0
Microsoft
1998
6
C#
Microsoft
June 26th, 2000
S.No
Platform
Developer
Year
1
.NET
Microsoft
13 February 2002

4. POP Features
OOPS Feature
Importance is given to the sequence of
things to be done i.e. algorithm
Importance is given to the data
Larger programs are divided into
functions
Larger programs are divided into objects.
Data move freely around the system
from function to function
In OOP mostly the data is private and only
functions inside the object can access the
data.
POP follows a top down approach in
problem solving
OOP follows a bottom up approach.
In POP, there is no access specifier
There are public, private and protected
specifier.
In POP, operator cannot be overloaded
in OOP operator can be overloaded.

5. 
C is Procedure Oriented Programming Language (POP).
C++ is Object Oriented Programming Language (OOP).

WE use for Structure programming concept in c. and We use Class programming
concept in C++.

We unable to reuse code of c language, whenever in c++ we can reuse the code
of c++ language.

C is the father of C++.

To save file we use .c in c whenever in c++ we use .cpp.

C++ is more powerful language instance of c.
•
C is function-driven. while C++ is object-driven.

6. 
Source Code

Source code, often referred to as simply the "source" of a program, contains
variable declarations, instructions, functions, loops, and other statements that tell
the program how to function.

Byte Code

Bytecode is platform-independent, bytecodes compiled by a compiler
running in windows will still run in linux/unix/mac.

Exe Code

Machine code is platform-specific, if it is compiled in windows, it will run
ONLY in windows.

7. 
C – Language & C++ Language
Source Code

Exe Code
JAVA & .NET
Source Code
Byte Code
Exe Code

8. Platform Dependent
Platform Independent
Platform dependent requires the
application to be run on specific
hardware.
Platform independent will run on
many kinds of hardware.
The source code is compiled by
the compiler and that compiled code
is made according to operating
system. If a source code is made
compiled code according a operating
system then that code will execute
only that A operating system, nothing
else.
eg:- C, C++, FORTRAN, PASCAL
The source code is compiled by
the compiler and the compiled code
can execute on any operating system.
eg:- Java, .NET

9. Difference Between Java & .NET Platform
JAVA
.NET
Java is developed by Sun Microsystems
.NET is developed by Microsoft Corporation.
Java is a light weight language and can
be run on almost all the OS(it require
less hardware)
.NET needs a very heavy framework to be
installed which have higher Hardware
requirements too compared to Java.
Java you need to confirm it that all the
objects are destroyed before application
quits.
.Net garbage collector runs at a certain
interval and see is there is any memory
occupied by any object whose parent is now
finished processing (for eg. you closed an
application), in this case the garbage collector
automatically removes the reference of that
object and free up the memory
Java is a language plus a runtime
.NET is a runtime framework that supports
multiple languages, Visual Basic and C# (the
.Net language most similar to Java) among
them.

10. Java is more platform independent, it runs
on several operating systems including
Windows, Mac and Linux. .NET is primarily
for Windows.
The open source project Mono is
developing a multi-platform runtime for
.NET, so this is less of an issue than it used
to be.
Java has no standard tool is available. .NET a standard development IDE is
Although, many third party IDEs are available that is Microsoft Visual Studio
available
Java is a programming language designed
to be run on many different platforms, and
so uses a common language which has to
be compiled and run on different
platforms (eg. windows, mac and
linux).Any OS which is able to install JVM
Java can be used to write programs for
many different operating systems
.NET, takes on a different approach, by
allowing you to program in any language
you choose,but has compilers for many
different languages that generates a
platform specific code (i.e.Microsoft or
Windows).

11. C# / C++
Feature
C#
C++
Override Keyword
Declaring override methods requires
the override keyword.
does not require
Foreach Loop
The foreach keyword allows you to
iterate through arrays and
collections.
C++ does not have that
feature
Include other file
The using directive is used to
reference types in other namespaces
without fully qualifying the type
names.
C++ allows header files
and other class files to
be included using
the #include keyword.
Class definition
termination
Semicolon not requires
Semicolon Requires
Pointers
C# support but in unsafe mode.
C++ Supports
Multiple Inheritance
Supported
Not Supported
Objects Creation
Using new Keyword
Objects Create without
using new Keyword

12. C# / JAVA
C#
JAVA
All methods are non-virtual
All methods are by default virtual and you can
override them
C# includes delegates
Java does not
C# has the feature of Operator
Overloading
Java does not include operator overloading
C# has the ability to alias namespaces
Java does not
in C#, We are not restricted only to void
we can also have int.
In Java the return type of main() is void
Pointers are allowed in C# but only in
unsafe mode.
In Java pointers does not exist
C# has support for output parameters,
adding in the return of multiple values
Java does not

13. C# / VB
Feature
C#
VB
Case Adjust
No Auto Case adjust
Auto Case Adjust
{}
Requires
No line Terminators
Programming Rules
Enforces
Require Begin and End
Variable declaration
Dim x as string
string x ;
Pointer
Pointer Supported
Pointer Not Supported

14. VB6.0 / VB.NET
VB6
VB.NET
Not OOPs Based
VB .NET is Object-Oriented now.
VB6 was not a type-safe language
VB.NET is a type safe language
VB6 used ‘On Error Goto’ syntax to handle
exceptions at runtime
VB.NET uses the Try…Catch…Finally
syntax to handle exceptions at
runtime.
VB6 does not allow developing the
multithreaded applications
VB.NET you can create multithreaded
applications.;
VB6 was only considered good for desktop
windows application
VB.NET you can also develop web
applications, distributed applications,
create .NET windows and web
controls and components, write
windows and web services.

15. Reflection not supported in VB6
In VB.NET, you can also use
reflections to read the meta-data of
types and using reflection emit you
can also generate code to define and
invoke types at runtime.
VB6 used ASP to build web applications
VB.NET uses ASP.NET to build web
applications.
VB6 used ADODB and record-sets to
implement data access applications
VB.NET uses ADO.NET and datasets to
build data access applications. The
ADO.NET also supports the
disconnected data access.

16. ASP / ASP.NET
ASP
ASP.NET
ASP does not have such facility to separate
programming logic from design.
ASP.Net web forms have a code behind file
which contains all event handling code.
ASP does not have the concept of
inheritance
ASP.Net web forms inherit the class written
in code behind.
ASP pages use scripting language.
ASP.Net web forms use full fledged
programming language
ASP applications are not.
ASP.Net web applications are configurable
(web.config)
ASP.Net webforms can use custom controls It is not available with ASP.
through the @ register directive
ASP.Net web forms have ADO.Net which
supports XML integration and integration
of data from two or more data sources
while ASP has ADO which is a simple COM
object with limited facilities.

17. Data Access Methods
Control
Full Forms
RDO
Remote Data Objects
DAO
Direct Access Objects
ADO
ActiveX Data Objects
OLE DB
Object Linking and Embedding,
Database
ODBC
Open Database Connectivity
JDBC
Java Database Connectivity

18. DAO - Data Access Objects (1-tier)
•
DAO (Data Access Objects) was the first object-oriented interface that exposed the
Microsoft Jet database engine (used by Microsoft Access) and allowed Visual Basic
developers to directly connect to Access tables - as well as other databases through ODBC. DAO is suited best for either single-system applications or for small,
local deployments.
RDO - Remote Data Objects (2-tier)
RDO (Remote Data Objects) is an object-oriented data access interface to ODBC
combined with the easy-to-use style of DAO, providing an interface that exposes
virtually all of ODBC’s low-level power and flexibility. RDO is limited, though, in that it
doesn't access Jet or ISAM databases very well, and that it can access relational
databases only through existing ODBC drivers. However, RDO has proven to be the
interface of choice for a large number of SQL Server, Oracle, and other large relational
database developers. RDO provides the objects, properties, and methods needed to
access the more complex aspects of stored procedures and complex resultsets.

19. Open Database Connectivity (ODBC)
•
Open Database Connectivity (ODBC) is a common framework for accessing and
altering the contents of databases. It allows developers to use the same coding
conventions regardless of the actual database platform implemented on the
backend. When a new database type is installed, administrators merely need to
install an ODBC driver that supports that platform and existing ODBC software
should function normally.
OLE DB data provider
OLE DB is Microsoft's successor to ODBC that utilizes a set of COM interfaces for
accessing and manipulating of data. OLE DB interfaces provide applications with
uniform access to data stored in diverse information sources, or data stores.
These interfaces support the amount of database management system (DBMS)
functionality appropriate to the data store, enabling it to share its data.

20. JDBC
•
Java DataBase Connectivity, commonly referred to as JDBC, is an API for the Java
programming language that defines how a client may access a database. It
provides methods for querying and updating data in a database. JDBC is oriented
towards relational databases. A JDBC-to-ODBC bridge enables connections to any
ODBC-accessible data source in the JVM host environment.
ADO - ActiveX Data Objects (1 to n-tier)
Allow VB/Other Web Tools (Browsers) to interface with different kinds of data sources.
ADO is a more recent Microsoft Data Access technology designed to replace DAO and
RDO. ADO is designed to be simpler to use and more powerful than DAO/RDO. Serves
an interface to Microsoft's new OLE-DB technology (thinner than ODBC). Can be used
to access all sorts of "non traditional data" (e.g., web pages/documents, etc.).ADO is
automatically installed with Microsoft IIS

21. ADO .NET
•
ADO.NET (ActiveX Data Object for .NET) is a set of computer software components that
programmers can use to access data and data services. It is a part of the base class
library that is included with the Microsoft .NET Framework. It is commonly used by
programmers to access and modify data stored in relational database systems, though it can
also access data in non-relational sources. ADO.NET is sometimes considered an evolution
of ActiveX Data Objects (ADO) technology, but was changed so extensively that it can be
considered an entirely new product..
Difference Between ADO and ADO.NET
ADO
ADO.NET
ADO works with connected data.
This means that when you access
data, such as viewing and
updating data, it is real-time,
with a connection being used all
the time.
ADO.NET uses data in a disconnected fashion.
When you access data, ADO.NET makes a copy
of the data using XML. ADO.NET only holds the
connection open long enough to either pull
down the data or to make any requested
updates. This makes ADO.NET efficient to use
for Web applications. It's also decent for
desktop applications.

22. VB
C++
C#
JScript
…
Common Language Specification
Windows
Windows
Forms
Forms
ADO.NET: Data and XML
Base Class Library
Common Language Runtime
Visual Studio.NET
ASP.NET: Web Services
and Web Forms

23. Visual Studio
Versions Description
Version
Version
Number
Release Date
Visual Studio
1.0
1.0.3705.0
2002-02-13
Visual Studio .NET
1.1
1.1.4322.573
2003-04-24
Visual Studio .NET
2003
2.0
2.0.50727.42
2005-11-07
Visual Studio 2005
3.0
3.0.4506.30
2006-11-06
3.5
3.5.21022.8
2007-11-19
Visual Studio 2008
4.0
4.0.30319.1
2010-04-12
Visual Studio 2010
4.5.40805
2011-09-13
(Developer
Preview)
Visual Studio '11'
4.5

24. Types Of Application in .NET
Console Application
 Windows Application
 Web Application
 Mobile Application


25. Console Application

26. Windows Application

27. Web Application

28. Mobile Application

29. CLR: Execution Model
Source
code
C#
C++
Compiler
Managed
code
VB
Compiler
Compiler
Assembly
IL Code
Assembly
IL Code
Assembly
IL Code
Common Language Runtime
JIT Compiler
Native Code
Operating System Services
Unmanaged
Component

30. Databases
A database is any organized collection of data.
DataBase
First Release
Stable Release
Developer
MS
Access
1.0 / 13 November
1992;
2010 (14.0) / April
28, 2010;
Microsoft
Oracle
1977
2007: Oracle
Database 11g
Oracle
Corporation
SQL
Server
1.0 / 1989
SQL Server
2011 October 11
Microsoft
My SQL
May 23, 1995
5.5.17 (October 21,
2011
MySQL (A
subsidiary
of Oracle)
DB2
1983
DB2 Latest Version IBM
is 9.5 On October 31,
2007