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Information and Communication Technology 3.5 Character Coding System

Information and Communication Technology 3.5 Character Coding System. Ho Cheuk In S4A (21). American Standard Code for Information Interchange (ASCII). Common character coding system Each code represents either a printable character or a non-printable character

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Information and Communication Technology 3.5 Character Coding System

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  1. Information and Communication Technology3.5 Character Coding System Ho Cheuk In S4A (21)

  2. American Standard Code for Information Interchange (ASCII) • Common character coding system • Each code represents either a printable character or a non-printable character • Each character consists of 7 bits, it contain 128 different characters • Include small and capital letters, digits and graphics symbols

  3. Example

  4. Solution

  5. Chinese Character Coding System • Usually represented in Big5 code, Guo Biao(GB)code and Unicode

  6. Big5 code & GB code • Both are use two bytes (16 bits) • Use different codes to represent the same Chinese characters • Big5 – traditional Chinese popular in Hong Kong, Macau and Taiwan • GB – simplified Chinese Example

  7. Unicode • Represent all the existing languages in the world • International standard code

  8. Example

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