Explain loader and linker.

A loader loads the programs into the main memory from the storage device. The OS transparently calls the loader when needed.

A linker links and combines objects generated by a compiler into a single executable. A linker is also responsible to link and combine all modules of a program if written separately.

Explain loader and linker.

A loader is a program used by an operating system to load programs from a secondary to main memory so as to be executed.

Usually large applications are written into small modules and are then compiled into object codes. A linker is a program that combines these object modules to form an executable.