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## Programming Languages

- Compilers follow strict conventions regarding programming language use.
- Strict rules prevent more disastrous errors that could arise should the compiler "guess."
- There are many (hundreds of) programming languages.
- Differences in programming languages are sometimes slight, but at other times substantial.
  - C++:

        if (int_rate > 100) message_box("Interest rate error");

  - Pascal:

        if int_rate > 100 then message_box('Interest rate error');

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