2.5 Translators and Facilities

2.5 Translators and Facilities

1. programming language is designed to communicate instructions to a computer

   • low level language
     • machine oriented and require extreme knowledge of computer hardware and its configuration
     • machine language = assembly language
       • assembly language is a set of symbols and letters
     • use of strings 0 and 1
     • generation 1 = no need to translate
     • efficient use of memory
     • It is tended to be system specific
     • example
       • MORE
         • ADD
           • SUB
             • ENG
         • ASSEMBLER
           • (2nd Generation Language)
   • high level language
     • programming language that uses English and mathematical symbols in its instruction
     • advantage= it is much closer to the English language using Logic
     • contains command/syntax/logic
     • it runs on every computer system
     • from High Level
       • to
         • Machine code
         • computer on to intepreter

2. The difference between Compiler and Interpreter?

   • Compiler
     • Computer program that translates a program writer in a high-level language to the machine language of a computer
     • high level = source code
     • example
       • Source code
         • Compiler
           • Machine code
             • Run Program
               • Inputs
               • Outputs
     • compiled file (for example EXE)
       • it runs independant on every system
   • Interpreter
     • Computer Program that simulates a computer that understands a high level language
     • interprets line by line
     • example
       • Interpreter
         • source code
         • Input
         • Outputs

3. Key words

   • low level language
   • high level language
   • language translator
   • 1st Generation
   • 2nd Generation
   • 3rd Generation
   • 4th Generation
   • Machine code
   • Compiler
   • Intepreter
   • Assembler
   • Source Code
   • Object Code
   • Executable Code
   • Debug
   • Translator

4. Assembler

   • difficult to write in (easier than machine code)
   • used for Device Drivers
   • Used when fast execution is required or limited memory/file size
   • Translate Assembly language code into Machine code

5. IDE Integrated Development Compiler

   • Editor
     • for writing the code
   • Error Diagnostics
     • such as De-bug facilities
   • Run-Time Environment
   • Translators

6. Generations

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