Software

Software

1. Levels of Programming Languages

   • Low Level
     • Machine Code
       • Made up of binary which is fetched and executed by the CPU. It is made up of opcode and operands.
         • Opcodes represent instructions.
         • Operands are the data in binray form.
     • Assembly
       • Assembly is simplistic and short code for computers so it is easy to store and edit.
   • High Level
     • High level code is easier for humans to understand and create. However, CPUs cannot run high level commands directly.
     • Each instruction needs to be translated into machine code.
   • High Level vs Low Level
     • Low Level
       • -Uses the CPU's opcodes directly -Compatible only for the CPU it was written for. -Allows precise management of memory and time. -Difficult for humans to work with.
     • High Level
       • -Easier for humans to understand. -Needs to be translated. -Largely compatible with many processors.