7 ms·

ASCII vs. UTF-8 vs. UTF-16 vs. UTF-32

• tsukikage 3y ago
  "IBM z/OS on mainframes used a character set called EBCDI" "Each ASCII character is 8 bits wide, or one byte. The result of this means that if each bit is either a 1 or a 0 that there are only 128 possible combinations" "it uses two chunks of 2 bytes, instead of 4-byte chunks in UTF-8"
• chaimanmeow 3y ago
  does ascii have one of the bits reserved for parity check? This part confuses me: "Each ASCII character is 8 bits wide, or one byte. The result of this means that if each bit is either a 1 or a 0 that there are only 128 possible combinations of ASCII characters." If all 8 bits are used for data there should be 255 possible combinations.
  • beardyw 3y ago
    I thought ASCII only used 7 bits for the basic set, which would be 128. The remaining 128 seems to be used for special or language specific characters, but varies somehow.
    • mikecoles 3y ago
      I'm uncertain, but you may be remembering 'code pages'. From the site below, you can click different code pages to see the changes in extended ascii. https://www.ascii-codes.com/ https://www.ascii-codes.com/
    • deleted 3y ago
      [deleted]