ASCII AND UNICODE

Question 1

How many characters can be represented in standard ASCII?

Answer 1

128 (accept 127 + NULL)

Standard ASCII uses 7 bits for character representation.

Question 2

What is the ASCII character code for ‘W’?

Answer 2

87

‘W’ is the 23rd letter of the English alphabet.

Question 3

What is the character code for ‘Y’?

Answer 3

89

‘Y’ is two places later in the alphabet than ‘W’.

Question 4

How many characters can fit into an Extended ASCII character set?

Answer 4

256 (accept 255 + NULL)

Extended ASCII uses 8 bits for character representation.

Question 5

Explain how Extended ASCII can include additional characters while still using the same amount of memory per character as Standard ASCII.

Answer 5

Standard ASCII uses 7 bits; Extended ASCII uses the 8th bit for additional characters.

This allows Extended ASCII to represent more characters without increasing memory usage.

Question 6

What is the purpose of extended ASCII character sets?

Answer 6

To represent characters that are uncommon or do not exist in the English language.

Each language group has its own Extended ASCII set for unique characters.

Question 7

Why are there more than one Extended ASCII sets?

Answer 7

Each language group has its own Extended ASCII set to represent its unique characters.

Variability in language requirements leads to the development of multiple sets.