Character Sets in Computing

The video tutorial explains how computers use binary to represent data, focusing on character encoding systems. It starts with ASCII, which uses 7 bits to represent 128 characters, but faces limitations in representing diverse languages. Extended ASCII expands this to 8 bits, allowing 256 characters, but still falls short for languages like Chinese or Arabic. Unicode is introduced as a comprehensive solution, supporting billions of characters and enabling the use of emojis. The video concludes by comparing ASCII, extended ASCII, and Unicode, highlighting Unicode's advantages despite its larger storage requirements.

What is the fundamental requirement for data representation in computers?

• Binary

• Decimal

• Octal

• Hexadecimal

What is a character set in computing?

• A set of binary numbers

• A set of algorithms

• A set of characters and numbers a computer can understand

• A set of programming languages

How many bits are used for each character in ASCII?

• 8 bits

• 9 bits

• 7 bits

• 6 bits

What was one of the main limitations of ASCII?

• It had limited space for characters

• It could not represent numbers

• It was not compatible with binary

• It was too complex

How many characters could Extended ASCII represent?

• 1024

• 128

• 256

• 512

Which languages did Extended ASCII cater to?

• Only English

• All world languages

• Asian languages like Chinese and Japanese

• Western languages like French and German

Why was Extended ASCII still not sufficient for global use?

• It was too slow

• It could not represent enough characters for all languages

• It was not compatible with modern computers

• It was too expensive

What is the name of the character set that provides a more comprehensive solution than Extended ASCII?

• EBCDIC

• UTF-8

• Unicode

• ISO-8859-1

How many bytes can a Unicode character be?

• 1 to 5 bytes

• 1 to 4 bytes

• 1 to 3 bytes

• 1 to 2 bytes

What is one disadvantage of Unicode compared to ASCII and Extended ASCII?

• It takes up more storage space per character

• It is less popular

• It is not compatible with modern computers

• It cannot represent emojis