Page 64 - ComputerScience_Class_11

Unicode Codes for Indian Scripts

Language Script Starting hexa code Ending hexa code
Urdu Arabic 0600 06FF
Hindi Devanagari 0900 097F
Bengali Bengali 0980 09FF
Punjabi Gurumukhi 0A00 0A7F
Gujarati Gujarati 0A80 0AFF
Oriya Oriya 0B00 0B7F
Tamil Tamil 0B80 0BFF
Telugu Telugu 0C00 0C7F
Kannada Kannada 0C80 0CFF
Malayalam Malayalam 0D00 0D7F
Advantages of Unicode are as follows:
• A total of 159 scripts having 144697 characters are supported by Unicode which covers all recognised languages in
the world.
• Unicode supports all Internet standards like HTML, XML, Java, JavaScript and Perl.
• The Unicode standards ensure interoperability and portability by prescribing conformant behaviour.
Disadvantage of Unicode is given below:

• UTF-16 and UTF-32 require more memory space.

Let’s Revisit

♦ Data is a collection of raw facts and figures which when processed gives meaningful information.
♦ A byte is a unit that most computers use to represent any character.
♦ A character set consists of a group of characters that are used to represent a particular language.
4
♦ BCD is one of the oldest coding systems, where each decimal digit is expressed as a group of bits or a nibble.
♦ ASCII is the most popular coding scheme used as industry standard in computers and on the web.
♦ ISCII is a character encoding standard designed to represent the character set of different Indian languages.
♦ Unicode is an international character encoding standard that includes different languages, scripts and symbols.

MIND DRILL

Solved Questions

A. Tick ( ) the correct option.
1. 1 Gigabyte is equivalent to ………………… .
a. 1024 kilobytes b. 1024 megabytes
c. 1024 terabytes d. 1024 petabytes
2. Which of the following is not an encoding scheme?
a. ASCII b. ISCII
c. BCD d. ABC
3. Unicode can encode a character set of ………………… .
a. Urdu b. Kannada
c. Bengali d. All of these
4. UTF-8, UTF-16 and UTF-32 are encodings of ………………… .
a. ASCII b. Unicode
c. ISCII d. BCD

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