What is Computer Program?

A computer program is a sequence of instructions that can be executed by a computer (CPU) that performs a certain task intentioned by the programmer.

Software
• Software makes a computer intelligent.
• Software are also known as programs.
• Microsoft Word, Microsoft Windows are examples of Software.
• Software is developed using programming languages.


Generation of Computer Languages

[1] First Generation Programming Languages
• Used codes directly understandable by CPU.
• Machine Language used from 1940
• Instructions and data are in Binary digits (1s and 0s).

[2] Second Generation Programming Languages

• Assembly Language from 1950
• Used simple English words instead of numerical instruction codes.
• These words were called mnemonics.
• Instructions given using
mnemonics were translated
to machine code using
assemblers.

[3] Third Generation Programming Languages
• Introduced in the late 1950
• Closer to English and Mathematics.
• High Level Programming Languages.
• Easy to learn and program.
• Computer cannot understand programs written in High Level Languages.
• A translator is needed to convert the program into machine code.
• Most Languages used today are third generation Languages.
[4] Fourth Generation Programming Languages
• Programming Languages used in a small and very highly specialized application domain.
• Non-procedural languages (Ex: SQL)
• For example, a SCREEN PAINTER, a REPORT GENERATOR and an QUERY LANGUAGE are all examples of "pure" fourth generation languages.

[5] Fifth Generation Programming Languages

• Languages which use syntax like Natural Languages
• Languages which use Artificial Intelligence (AI)

Best Programming Languages.

VB.NET, JAVA, Visual Basic,C++,C#, C++.NET, ASP.NET,PHP,……

Best Databases

SQL Server,Oracle,Foxpro,MS Access,….