Software

Software
Software comprises the instructions that tell the computer what to do. In general, a software is classified into application software and system software.-

Application Software is software that has been developed to solve a particular problem, to perform useful work on specific tasks, or to provide entertainment, Application software may be custom tailored or packaged. This may be thought as a kind of software that people use to perform a specific task, such as word processing software used to prepare documents and game software used to entertain the users.

System Software, which includes operating systems, enables the applications software to run on the computer. This may be thought as the underlying software that the computer uses to manage its own internal activities and run applications software. A system software acts as the interpreter that allows you and your application software to access the physical hardware devices and other resources, You must have a system software, otherwise you will not even be able to "boot up" (start) your computer.