ASCII and Unicode

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Disadvantages of UNICODE

- Double or more space per character 2 - 4 bytes per characters

Advantages of UNICODE

- Much larger number of characters or group of characters - Contains some non western european characters

Disadvantages of ASCII

- Only has basic alphabets (lower and upper case) and common symbol and spaces like" ( , _ @ >?!"...

Advantages of ASCII

- Very small, with only 1 byte per character. - All or almost every computer has this system.

ASCII examples

A = 65 = 1000001 B = 66 = 1000010

ASCII definition

ASCII (American Standard Code for Information Interchange) is the most common format for text files in computers and on the Internet. In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s). 128 possible characters are defined.

How is it used?

ASCII is mainly used in most computers, but doesn't cater for different languages.


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