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For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i 0100101001010101 1101101001001010 1110101001010101 1000001001001010 0010101001010101.

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Presentation on theme: "For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i 0100101001010101 1101101001001010 1110101001010101 1000001001001010 0010101001010101."— Presentation transcript:

1 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) Object Code This is then saved as a.exe file, that is, a program file..exe stand for ‘executable’ A compiler

2 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) Object Code Doesn’t take much memory, Doesn’t need to be translated again Executes fast A compiler

3 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) TranslateExecute Hello Elephant Goodbye 1 An interpreter

4 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) TranslateExecute Hello Elephant Goodbye 2 An interpreter

5 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) TranslateExecute Hello Elephant Goodbye 3 An interpreter

6 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) TranslateExecute Hello Elephant Goodbye 4 An interpreter

7 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) TranslateExecute Hello Elephant Goodbye 5 An interpreter

8 For i=1 to 5 pctDisplay.Print “Hello elephant” pctDisplay.Print “Goodbye” Next i Source Code (typed in using text processor) TranslateExecute Hello Elephant Goodbye We still have the original Source Code (typed in using text processor) The translated code is lost It continually translated and executed An interpreter

9 CompilerInterpreter Con Pro Creates an object code version – efficient in memory & speed Does not indicate errors Indicates errors well No Object code produced If used to run a prog, slow because the lines have to repeatedly be translated (inefficient)


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