What is difference between application, program, software?

Software and Application difference:
                                                                There is a technical difference.
                                                              Software
 the programs and other operating information used by a computer. Software can be made up of more than one program. All-encompassing term that is often used in contrast to hardware (the tangible parts of a computer) 
                                         Application
A program or group of programs that is designed for the end user. Application software (an application) is a set of computer programs designed to permit the user to perform a group of coordinated functions, tasks, or activities. Application software cannot run on itself but is dependent on system software to execute.

"All applications are programs, but a program is not necessarily an application. For example, there are always lots of programs running on the background of an operating system, but since they weren't developed for the end-user, they are not applications. On the other hand, Windows Media Player and Firefox, for example, are applications