Compiler is a translator.

Convert High-Level source code to object code.

Object produced by compiler gets saved in a file. So file do not need to compile again and again.

Interpreter is a translator.

Used to translate source code to object code.

Interpreter scans one line at a time of source program if there is any syntax error ,the execution of program terminates immediately.

Assembly and machine language are low level language.

The assembly codes are easier to write but system can executes the machine code only.

So we need a translator (Assembler) to translate assembly code to machine code.

A linker is a program that combines object codes to form an executable program.

It links the object modules with library functions and make executable program.

Loader is an operating system utility that copies program from a storage device to main memory, where they can be executed.

It is a part of Operating System(OS) and used to load the program.

Compilation on Windows

  Using Turbo C IDE

 F2        : SAVE SOURCE CODE
 F2 Again  : SOURCE CODE BACKUP 
 Alt + F9  : COMPILE 
 F9        : MAKE EXE
 Ctrl + F9 : COMPILE + RUN
 Alt + F5  : LAST OUTPUT

Compilation on Linux

  Using GCC on Terminal

  Compile Command:
    gcc source_code.c 
  Run Command:
    ./a.out
 or 
  Compile Command:
    gcc -o abc.out source_code.c 
  Run Command:
    ./abc.out