ASCII CODES

Computer is a system that can only understand numbers. So because of that, to make an easier of using computer ASCII codes has been created and represents all the letters in the roman alphabet plus some additional characters. Most computers use ASCII codes to represent text, which makes it possible to transfer data from one computer to another. ASCII is pronounced "ask-ee" which stands for American Standard Code for Information Interchange. It is a set of characters of the english alphabet. There have two types of ASCII which is Standard and Extended ASCII. Characters 0 through 127 comprise the Standard ASCII Set and characters 128 to 255 are considered to be in the Extended ASCII Set. Knowing something about ASCII can be helpful.

Standard ASCII table

* This panel is organized to be easily read in hexadecimal:

• Row numbers represent the first digit
• Column numbers represent the second one.

Unicode

Unicode was created in august 1987 by joe becker with lee collin and mark davis from a company called apple. They were investigating the problems of how multiple languages or other special characters can be implemented by using computer. Here , unicode is used to manipulate text expressed in the most of the world's writing systems. It can be implemented by different character of coodings.Unicode also can be used to translate texts in multiple languages, special fonts and browsing softwares. The difference between ASCII and unicode is unicode more to languages, emoticons, or special fonts while ASCII is more to characters or input that comes from the keyboard.

Examples of unicode in 8 bit HTML using 'character entities', for instance:

• ॐ
• = ॐא
• = א‎Ω = Ω