I asked the question of the difference between all of the above on yahoo answers and these are the answers which I received.
Application software is all the computer software that causes a computer to perform useful tasks beyond the running of the computer itself. A specific instance of such software is called a software application, application program, application or app.
The term is used to contrast such software with system software, which manages and integrates a computer’s capabilities but does not directly perform tasks that benefit the user. The system software serves the application, which in turn serves the user.
Examples include accounting software, enterprise software, graphics software, media players, and office suites. Many application programs deal principally with documents. Applications may be bundled with the computer and its system software or published separately, and can be coded as university projects.
Application software applies the power of a particular computing platform or system software to a particular purpose.
Some applications are available in versions for several different platforms; others have narrower requirements and are thus called, for example, a Geography application for Windows, an Android application for education, or Linux gaming. Sometimes a new and popular application arises which only runs on one platform, increasing the desirability of that platform. This is called a killer application.
Although I am not programme literate, distinguishing the difference between the platforms I will be encountering throughout my research has helped me to think more realistically about what I can achieve and how this can be done.
My Classroom resource in broader terms will, be a purchasable software from a platform such as Microsoft or the apple store whom both currently sell and supply downloadable software for Interactive White boards. Rather than a killer application, I would like to create a software which runs easily across all brands of boards for ease of use (if a supply teacher had a lesson planned with this software, they should be able to guarantee it to work on any interactive whiteboard the school uses), although as prometheus seems to be the most popular choice in the classroom this would be an ultimate priority if I could only opt for one brand. The software will use existing camera hardware technology that is already available on most IWB’s, however additional hardware can be purchased in addition to the software in the form of a camera that can be attached to an IWB without or with a poor quality integrated camera.