Concept of Compiler, Assembler, Interpreter, Linker and Loader

• Compiler :A compiler is a special program that translates a programming language’s source code into machine code, bytecode or another programming language. Source code----->Compiler----->Machine language

• Assembler :An assembler is a program that converts an assembly level language code(also called mnemonic code) into machine language code and provides necessary information for the loader to load the programme.

• Interpreter :The software by which the conversion of the high level instructions is performed line by line to machine level language other than complier and assembler is known as Interpreter.

• Linker :Linker is a computer program that links and merges various object files together in order to make an executable file.

• Loader:Loader is a part of operating system and is responsible for loading executable files into memory and execute them. It calculates the size of a program and creates memory space for it, it initializes registers to initiate execution. Source code -> compiler -> Assembler -> Object code -> Linker -> Executable file -> Loader