Page 68 - DK Children's Encyclopedia
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The story of...


       Codes


                                                                                       Morse Code
       Codes are words, letters, and numbers that are                               Morse Code represents
                                                                                     letters and numbers as
       used to represent other words, letters, and                                dots and dashes. It was used
       numbers. People used codes to communicate                                   to send messages through
       with each other, or to keep things secret.                                   wires before telephones
                                                                                        were invented.
       Others, such as DNA, are just instructions.






                                                      The ancient
                                                    Egyptians used
                                                   hieroglyphics
                                                     as a writing
                                                       system                       Morse Code tapping machine
                                                       to record
                                                     their history.




               Writing with pictures
               The ancient Egyptians used
           drawings to communicate, instead of                  Bonjour                  Nee-how, Mandarin
          written words. These symbols are called
           hieroglyphics. Hieroglyphics were not                 Boh-zhoo, French
            understood by modern people until
              a stone was discovered with a                                                            Hello
             translation of hieroglyphics into                                                            English
               Greek, allowing the “code” to
                     be worked out.                                            Languages
                                                                           The different languages
                                                                           humans speak are types
                                                   Konnichiwa, Japanese
                                                                           of code. Until you learn a
                                                                           foreign language, hearing
                                                                           someone using it to speak
                                                                          or reading their writing will
                          Programming                  Merhaba              make little sense to you.
                           Computers need              Mehr-hah-bah,                                  Zdrast-wui-tyeh,
                                                                                                          Russian
                        instructions to operate.          Turkish
                         These are created by
                        programmers, who use
                       combinations of symbols
                       and words. Programming            Holá                                      Jambo
                         is often called coding.
                                                              Oh-lah,                               Ja-m-boh, Swahili
                                                             Spanish




                                                                             Nômoshkar, Bengali
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