Unicode, DOT NET Programming

What is Unicode?

In order to understand the concept of Unicode we require  to move a little back and understand the ANSI code. The ASCII (ask key) stands for American Standard Code for Information Interchange. In the ASCII format every character is represented by one byte (i.e. 8 bits). So in brief we can have 256 characters (2^8). Before UNICODE came into picture the programmers used code page to represent characters in different languages. The Code page is a different interpretation of ASCII set. The Code pages keep 128 characters for English and the rest 128 characters are tailored for a specific language.

The pictorial representation of the same is shown below:

2468_Code page.png

Figure:- Code page in action

There are following demerits of the CODE page approach:-

(i)Some languages such as Chinese have more than 5000 characters that is difficult to represent only 128 character set.

(ii)Only 2 languages can be supported at one time. As said you can use only 128 for English and the rest 128 for the other language.

(iii)The end client must have the code page.

(iv)The Code Representation modify according to the Operating system and Language used.

(v)That means a character can be represented in different numbers depending on the operating system.

For all the above problems the UNICODE was introduced. The UNICODE represents characters with 2 bytes. Therefore if its two bytes that means 18 bits. You can now have 2^16 characters that is 65536 characters. That's a huge number you can include any language in the world. In further if you use surrogates you can have additional 1 million characters...Hmm that can involve type of language including historian characters.

The ASCII representation varied according to the operating system and language. But in the UNICODE it assigns a unique letter for every character irrespective of the Language or the operating system which makes programmers life much easier while developing international compatible applications.

Posted Date: 9/25/2012 3:05:50 AM | Location : United States







Related Discussions:- Unicode, Assignment Help, Ask Question on Unicode, Get Answer, Expert's Help, Unicode Discussions

Write discussion on Unicode
Your posts are moderated
Related Questions
upload files using file upload control to google drive

What is a Cloud Service? A cloud service is used to build cloud applications. This service gives the facility of using the cloud application without installing it on the comput

What is the difference between "DataSet" and "DataReader"? The major differences between "DataSet" and "DataReader" are as follows:- 1)The "DataSet" is a disconnected archit

What is the purpose of DOTNET? Dot Net Is a collection of products like C#, ASp.Net, Vb.Net, XML. The purpose of .Net is that we can simply upgrade and degrade our programs whi

UDP Based, Data Transfer Server/ Client in .NET C# Project Description: We require the Network Level Functionalities (NLFs) of a Server/ Client for transferring data among tw

I Need paypal and urolator pro api integrated in to aspx site Project Description: Need paypal and urolator pro api integrated in to aspx site. The is presently completed and

NopCommerce v3.10 - Content Page Creation, Product Import and Site Customization Project Description: I have an existing website with about 800 products and we could like to

Counting Number of Words in a String - C# Program Anyone can suggest me the output of the following program. using System;   class CountWords { public static void

What is DBMS? It is a collection of programs that enables user to make and maintain a database. In other words it is general-purpose software that gives the users with the proc

We need in ASP.NET Mvc site I have project should be done with MVC.NET technology. In general- I have by now the site Layout (Html-js-css) I need- a) Simple CMS allo