3.3.5 Character encoding

Cards (28)

  • What is character encoding used for?
    Representing text numerically
  • What type of characters does ASCII primarily cover?
    English alphanumeric
  • The letter 'A' is encoded as 65 in ASCII.
  • Why is character encoding essential for computers?
    Standardized text processing
  • The ASCII encoding standard uses 7 bits to represent each character.
  • UTF-8 is backward compatible with ASCII.
    True
  • Why is UTF-8 often preferred over Unicode?
    Backward compatibility
  • The letter 'A' is encoded as 65 in ASCII and U+0041 in Unicode.
  • Match the encoding standard with its key characteristics:
    ASCII ↔️ Uses 7 bits, limited language support
    Unicode ↔️ Extensive characters from most languages
  • How many bits does Unicode use to represent characters?
    16
  • Order the following encoding standards by their range of supported characters:
    1️⃣ ASCII
    2️⃣ Unicode
  • ASCII uses 7 bits to encode characters.
  • UTF-8 is backward compatible with ASCII.
  • UTF-8 uses a variable-length encoding for characters.
    True
  • The ASCII encoding standard uses a range of 0-127
  • Unicode supports over one million characters and symbols.

    True
  • Match the encoding standard with its range:
    ASCII ↔️ 0-127
    Unicode ↔️ 0-1,114,111
  • Unicode ensures that the same character appears correctly across different platforms.

    True
  • What is one key benefit of Unicode compared to ASCII?
    Comprehensive language support
  • Match the encoding standard with its key characteristic:
    ASCII ↔️ Basic English text
    Unicode ↔️ Comprehensive character coverage
    UTF-8 ↔️ Variable-length encoding
  • What is the maximum number of characters supported by Unicode?
    1,114,111
  • Character encoding is a method used to represent text characters and symbols as numeric codes for computers to understand them.

    True
  • In ASCII, the letter 'A' is encoded as the number 65
  • The encoding of 'A' is consistent across ASCII and Unicode.
    True
  • What is one major benefit of Unicode?
    Comprehensive language support
  • Match the encoding standard with its example:
    ASCII ↔️ "A" is 65
    UTF-8 ↔️ "€" is 0xE2 0x82 0xAC
  • Which encoding standard is primarily used for English text?
    ASCII
  • UTF-8 balances coverage and efficiency, and is compatible with ASCII.