Data Representation - Character Sets

Choose the best answer about character sets:

• All characters in character sets are stored in binary.
• Some characters in character sets are stored in binary.
• Only binary characters in character sets are stored in binary.

The following is true about character sets:

• Each letter has a unique code
• Lower and upper case letters share the same codes
• ASCII is one of the latest character sets to be adopted

The following is not true about the ASCII character set:

• example: Mount Everest
• Usually, is made up of 7 bits
• Is not enough to represent languages other than English

Identify a true statement:

• Standard ASCII only uses the first 128 positions in the table.
• Standard ASCII only uses the first 255 positions in the table.
• ASCII has more letters than Unicode

The main purpose of character sets is:

• To allow humans to express alphanumeric characters in a binary table
• To run the Internet
• To simplify computer programming

The first 31 ASCII characters:

• Are rarely used by today's computers.
• Are the lowercase letters of the English alphabet.
• Are the uppercase letters of the English alphabet.

Uppercase characters in ASCII:

• Appear before lowercase characters.
• Appear after lowercase characters.
• Don't get unique codes to store their position in binary.

Unicode can represent:

• 65,536 different characters
• 255 characters
• 127 characters

Portions of the large Unicode set are divided into:

• Code pages.
• Subsets.
• Alphabets.

ASCII uses one byte per character. Unicode uses how many bytes per character?

• 2 bytes per character.
• 3 bytes per character.
• 4 bytes per character.