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2.5 (facilities of languages (editors (bracket matching, autocomplete,…

- - - - breakpoints
        
        code can be paused when certain variables hit values or at a certain line of code to test parts of the code
      - trace table
        
        shows the values of all the variables as they change during the program
      - step through
        
        runs one line of code at a time
  - - - converts source code to an executable file
    - - runs source code one line at a time
- - - - declerative
        
        describes the problem instead of how to solve it
      - procedural language
        
        contains procedures, instructions and local/global variables
  - - - machine code
        
        directly executable by the computer
        
        consists of 1's and 0's
        
        very efficient on the CPU and memory
      - assembly language
        
        type in mnemonics instead
        
        easier to write than machine code but is still architecture specific
- - - - translates assembly code to machine code
    - - translates to either machine code or intermediate code
        
        intermediate code is halfway between machine code and source code used to share code without allowing editing of the source code
    - - converts one line of code at a time
        
        commonly used to test code during development