Information system- software
Software is the general term for the various kinds of programs use to operate computers and related devices. While in contrast, the term hardware describe the physical aspects of computers.

Software can be divided into two general classes which is the application software and system software. Sometimes we also used the term middleware to describe programming that mediates between the application and system software or between two different kinds of applicati0n software.

System software consist of low-level program that interact with the computer at a very basic level.
It generates the user interface and allow the operating system to interact with the hardware. This included operating system, compilers and utilities for managing computer resources.

In contrast, application software(also known as end-user programs) include database programs, word processor, and spreadsheets.Figuratively speaking, applications software sets on the top of system software because it is unable to run without the operating system system utilities. For example, a web browsers, e-mail programs, word processors, games, and utilities are all applications. The word "application" is used because each program has a specific application for the user.

Some general kind of application software included:
Productivity software-word processor, spreadsheets, and tools use by most computer users
Presentation software, Graphic software for those graphic designers, CAD/CAM software, specialized scientific application software and lastly the industry-specific software(for banking, insurance, retail and manufacturing environments)

Under the application software, once again it is divided into two general categories, which is the general application software and the function-specific application software.The difference between them shown as below;
General purpose application software is the programs that perform common information processing job for end users, sometime it also called productivity packages.The example is the word processing, spreadsheet, email and so on.
On the other hand, the Function-specific application software accomplish information processing task that support specific business function.There are thousand of these packages support specific applications of end users. The example for it is the accounting software, customer relationship management, enterprise resource planning, supply chain management and web-enabled electronic commence.