In this way, the book can explain those themes, like how Morse, Braille, and electricity have only 2 states: dot or dash, clear or pointed, on or off. It introduces some elemental topics, like the Morse code or Braille, and explains all in detail and with easy words that anyone can understand. The book introduces a little story that is metaphor for the human troubles to stay communicated. Has been a while since the first computers of the world have been created, but the systems and knowledge to build them have been invented before them.Ĭomputers have advanced so much but the components that compose them are in essence the same.Ĭode: The Hidden Language of Computer Hardware and Software written by Charles Petzold talks about the history, not only of the computers but the essential components that compose them, binary codes and electricity.
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