Application Software is all the computer software that causes a computer to perform useful tasks (compare with computer viruses) beyond the running of the computer itself. A specific instance of such software called a software application, program application or app.
An application is a program or group of programs designed for end users. Application Software can be divided into two general classes: System Software and applications software. Systems software consists of low-level programs that interact with the Computer at a very basic level. This includes operating system, compilers, and utilities for managing computer resources.
In contrast, applications software (also called end-user programs) includes database programs, Word processors, and spreadsheet. Figuratively speaking, applications software sits on top of systems software because it is unable to run without the operating system and system utilities.
There are many types of application software:
- An application suite consists of multiple applications bundled together. They usually have related functions, features and user interfaces, and may be able to interact with each other, e.g. open each other's files. Business application often come in suites, e.g. Microsoft Office, LibreOffice and iWork, which bundle together a word processor, a spreadsheet, etc.; but suites exist for other purposes, e.g. graphics or music.
- Enterprise software addresses the needs of an entire organization's processes and data flow, across most all departments, often in a large distributed environment. (Examples include financial systems, customer relationship management (CRM) systems and supply chain management software). Departmental Software is a sub-type of enterprise software with a focus on smaller organizations and/or groups within a large organization. (Examples include travel expense management and IT Helpdesk.)
- Enterprise infrastructure software provides common capabilities needed to support enterprise software system. (Examples include databases, email servers, and systems for managing networks and security.)
- Information worker software lets users create and manage information, often for individual projects within a department, in contrast to enterprise management. Examples include time management, resource management, documentation tools, analytical, and collaborative. Word processors, spreadsheets, email and blog clients, personal information system, and individual media editors may aid in multiple information worker tasks.
- Content access software is used primarily to access content without editing, but may include software that allows for content editing. Such software addresses the needs of individuals and groups to consume digital entertainment and published digital content. (Examples include media players, web browser, and help browsers.)
- Educational software is related to content access software, but has the content and/or features adapted for use in by educators or students. For example, it may deliver evaluations (tests), track progress through material, or include collaborative capabilities.
- Simulation software simulates physical or abstract systems for either research, training or entertainment purposes.
- Media development software generates print and electronic media for others to consume, most often in a commercial or educational setting. This includes graphic-art software, desktop publishing software, multimedia development software, HTML editors, digital-animation editors, digital audio and video composition, and many others.
- Product engineering software is used in developing hardware and software products. This includes computer-aided design (CAD), computer-aided engineering (CAE), computer language editing and compiling tools, integrated development environments, and application programmer interfaces.
The operating system itself can be considered application software when performing simple calculating, measuring, rendering, and word processing tasks not used to control hardware via command-line interface or graphical user interface . This does not include application software bundled within operating systems such as a software calculator or text editor.






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