programming languages

programming languages

1. low level languages

   • machine code
     • binary code to be understood by a machine or a computer.
   • assembaly language
     • uses mnemonics for instructions (shortend command words)
   • tricky for humans to read and write but are easier for a computer to run.

2. high level languages

   • examples
     • python
     • scratch
     • java
   • a programming language which is designed to be understod by humans

3. IDE ( interegated development environment)

   • The Tree
     • Error Diagnostics
       • tells you which line the error is on and why
       • finds syntax errors
     • editor
       • allows you to write and edit your code
       • colour codes command words
     • run time environment
       • allows you to run and test your code
   • translator
     • translates source code into machine code.
     • compiler
       • translates the entire source code into machine code all at once.
       • only needed once to create the executable file
       • compiling can take a long time
     • interpreter
       • translates source code into a machine code 1 line at a time.
         • will return the first error it finds then stops. useful for debugging
         • program will run slower becuase code is being translated as the program is running
     • assembler
       • translates assembaly language into machine code.