13. What is Programming?

• Program is a set of written instructions that tells computer what to do

• A compiler translates language statements into CPU instructions or bytecode, e.g.

      ( 2 + 5 ) * 3
  

  internally becomes

      multiply:
      ( add: 2 5 )
      ( 3        )
  

• Source code can have a syntax errors, which will prevent the compiler from finishing its translation.

  • If so, make necessary changes and recompile.