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Visual C#.NET, Part 1: Introduction to Programming Languages

Learn today what you need to get started with Visual C#.NET. We'll be taking a look at the .NET Platform, the .NET Framework, as well as a quick look at Visual Studio.NET. We'll also take a brief look at the history of programming languages, including machine code, assembly language, as well as high-level languages, such as C#. This is the first chapter of Michael Youssef's book Visual C#.NET (The Absolute Power), printed here with the permission of the author.

Author Info:
By: Michael Youssef
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April 28, 2004
  1. · Visual C#.NET, Part 1: Introduction to Programming Languages
  2. · Types of Programming Languages
  3. · Meet Microsoft.NET
  4. · Microsoft.NET Platform Components
  5. · .NET Framework Central Components
  6. · Visual Studio.NET

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Visual C#.NET, Part 1: Introduction to Programming Languages - Types of Programming Languages
(Page 2 of 6 )

In today's computing world, there is a wealth of various programming languages available to us; however, they can each be categorized into  one of the three major types:

  •  Machine Languages
  •  Assembly Languages
  •  High-Level languages

Machine Languages

As was mentioned earlier, a computer can only understand its own machine language.  The machine language is the language that the hardware designers create and is quite complicated if you decide to use it to create a program, simply because it consists of sets of numbers (0s and 1s). Machine language uses these sets of numbers to perform various operations.

NOTE  In our Human-Computer programming languages analogy if two English-speaking people speak to each other their brains will compile the code and understand it directly. If you are a machine code programmer then you will write the code that the computer will understand directly and execute the program.

Assembly Languages

Programmers found that developing even the simplest programs, using sets of numbers, was a very complicated process so they developed assembly languages. Assembly languages use keywords and symbols, much like English, to form a programming language -- I can personally say that this is much better than the huge amount of numbers used in the machine languages -- but at the same time introduces a new problem. The problem is that the computer doesn't understand the assembly code, so we need a way to convert it to machine code, which the computer does understand.

Programmers developed assemblers which are programs that convert assembly language code to machine language code.  By using these assemblers programmers can write code in assembly language and convert into machine code.

High-Level Languages

Computer scientists found that computers were quickly becoming popular all over the world, so they needed faster, easier, and more powerful programming languages than what was currently possible using assembly languages.  They designed "high-level" languages and they called them high-level languages because when you develop applications using a high-level language you don't have to deal with low-level details like machine code, which allows you to write keywords that are much easier than assembly and that can perform multiple operations.  An example of a high-level language is C#.

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