Linker :-

1. Linker is a program that takes one or more objects generated by a complier and combines them into a single executable program.
2. Linker also link a particular module into system library. It takes object modules from assembler as input and forms an executable file as output for loader.
3. The linker links the object files to the library functions and the program becomes a .exe file.
4. Linker performs the process of linking. Linker are also called link editors.