8/6/2019 Lecture 1 - Introduction to Programming and

1/7

9/4/200

By: JESILO 2009

Hardware vrs SoftwareWhat is a Hardware?

Physical components of a computer.

It is tangible and appreciated.

What is a Software?

Made of instructions.

Unseen/ intangible/ not physically appreciated.

Our focus:

Software development with Visual BASIC.NET

Regent University, Ghana By: JESILO 2009

8/6/2019 Lecture 1 - Introduction to Programming and

2/7

8/6/2019 Lecture 1 - Introduction to Programming and

3/7

9/4/200

Programming

Programme representations:

Algorithm Pseudo code

Flowcharts

Example: finding the greater of two numbers

Algorithm Pseudo code Flowchart

Regent University, Ghana By: JESILO 2009

1. Get two numbers a and b

2. If a is greater than b thenthe greater is a else the

greater is b

3. Give the greater number

1. Let a, b and greater benumbers

2. Input a, b

3. If a>b then greater = aelse greater =b

4. Output greater

Int a, b, greater

a>b?

Input a, b

greater = a greater = b

Output greater

Yes No

Programming LanguageWhat is a language?

systematic means of communicating by the use of sounds orconventional symbols

Common Natural Languages:

Ewe

Twi

English

FrenchCommon Programming Languages

VB.NET

C++

Java

Perl

Regent University, Ghana By: JESILO 2009

8/6/2019 Lecture 1 - Introduction to Programming and

4/7

9/4/200

BASIC

BASIC stands for:

BeginnersAll-purpose Symbolic Instruction Code

There has been several versions:

Qbasic

Quick Basic

Visual Basic

But now well be usingVisual Basic.NET

Regent University, Ghana By: JESILO 2009

VB vrs VB.NETWhat is the difference between VB and VB.NET?

Regent University, Ghana By: JESILO 2009

Visual BASIC Visual BASIC.NET

Not fully object oriented Fully object oriented

Supports only windows

applications

Supports both windows and web

applications

Has very large standard libraries

8/6/2019 Lecture 1 - Introduction to Programming and

5/7

9/4/200

.NET

What is .NET?

It is a software framework by Microsoft; introduced in 2006. It is made of several parts

- Common Language Runtime (CLR)

- Base Class Library (BCL)

- Compilers for different languages

Our Focus:

VB.NET Compiler

- A compiler is primarily used for programs that translate source code from ahigh level language to a lower level language (zeros and ones)

- Compiles to Microsoft Intermediate Language (MSIL)

- During execution MSIL is JIT-compiled into Machine Code

Regent University, Ghana By: JESILO 2009

.NET Compilation

Regent University, Ghana By: JESILO 2009

8/6/2019 Lecture 1 - Introduction to Programming and

6/7

9/4/200

.NET Advantages

Advantages of the .NET Framework?

Language Interoperability Strong support for the Web

Eradicates DLL Hell (Versioning problems)

Enhanced Security

Strong support for small devices

Simplified development efforts

Easy application deployment and maintenance

Robust managed-code environment

Regent University, Ghana By: JESILO 2009

.NET InstallationHow to install the .NET Framework?

For the solution to this, go to the masters:

http://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en

Download and install any version higher than version 2.0

Regent University, Ghana By: JESILO 2009

http://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?familyid=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en

8/6/2019 Lecture 1 - Introduction to Programming and

7/7

9/4/200

References

http://www.google.co.uk/search?hl=en&q=what+is+a+language&meta=

dotNET Tutorials for Beginners

http://www.startvbdotnet.com/dotnet/frameworkadvantages.aspx

http://msdn.microsoft.com/en-us/embedded/bb278106.aspx

http://msdn.microsoft.com/en-us/embedded/bb278 106.aspx

Regent University, Ghana By: JESILO 2009