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High Level Languages and Translators By Adam Sinclair (What is Machine…

- - - - An interpret does not produce object code(stand alone piece of code). The interpreter translates and executes each line of the program in turn.
      - Advantages
        
        If errors are present, then they are highlighted immediately and are therefore easier to detect and fix.
        
        Interpreters can run partial code or code under development.
      - Disadvantages
        
        A translation is not saved, the interpreter must be present to run code.
        
        Individual runs are slower because of the previous two points.
        
        If code is repeated, as in a loop, the code is translated and run many times.
    - - They translate source code into machine or object code. It does this by going through the source one line at a time and translating it. Once it has been translated it does not need to be translated again unless it has changed. It wont run if program has syntax errors.
        
        Advatages
        
        If no errors are found, then the source does not need to be translated again.
        
        The translator program is no longer required once the program is translated.
        
        Disadvatages
        
        If any syntax errors are present then the program will not run.
        
        The errors may be harder to correct, as the problems may not be identified until the code is translated.