Source Code

Source Code

1. Translator - Interpreter

   • Machine Code
     • Assemblers convert from low level assembly code, to machine code.
   • Uses a one to many relationship
   • Takes one line of high level code and converts directly into machine code.
   • Useful in debugging a program.
     • Requires access to the whole source code to translate it. This is a time and security issue.

2. Translator - Compiler

   • Object Code
     • Linker
       • Intermediate Code
         • Interpreter
           • Machine Code - Binary
       • Library
       • Used to link references to libraries and then translate straight into an executable code.
         • Called static linking
       • Dynamic linking has the OS like compiled versions of the code into the computer.
     • Library
       • Libraries of compiled and tested code that can be referenced and used by others.
     • Very close to machine code so can be distributed to anyone with a compatible source program.
     • Can be very slow to translate this.
   • Uses a one to many relationship.
   • First invented by Grace Hopper.