Variety of possible applications:

 1> System Software: Following in the software of the wide range of applications too. System software is a set of programs written for other service programs. Some systems software (such as compilers, editors and file management utilities) complex process, but some data structures. Other areas of application systems (such as operating system components, drivers, telecommunications processors) process largely uncertain data. Anyway, in terms of systems software is to simultaneously work of serious interaction with computers, the heavy use by multiple users, characterized in that require planning, sharing resources and complex process of managing complex data structures and various external interfaces.

 2> Real-time software. The software monitors, analyzes, manages the actual events as they occur is called real time. Elements of real-time software includes data-gathering component collects and formats the information from the environment, the analysis component that converts the information in accordance with the requirements of programs, management and execution component that responds to the environment and monitoring component coordinates all the components in real-time response (typically within 1 ms to 1 second) can be stored. 

3> Business Software. Business information processing is the largest part of the application software. Discrete "systems (such as payroll, accounts receivable / payable, inventory) in the management information system (MIS), software that allows one or more large databases of business information mail programs in the restructuring of the existing data in a form. The business' or management decisions addition to traditional data processing applications. business applications software includes interactive computer (eg pointof-sale transaction processing).

 4> engineering and scientific applications engineering and science programs. is characterized by "crunching" algorithms. scale ranging from astronomy Volcanology, automotive stress analysis shuttle orbital dynamics and molecular biology to computer-aided manufacturing but various modern applications in technical and scientific areas of the traditional calculation algorithms .. Computer-aided design, simulation and other interactive programs begin real time performance, even taking system software.

 5> Embedded Software Intellectual products. has become commonplace. in almost all consumer and industrial markets embedded software in ROM and is used to control products and systems for consumer and industrial markets. embedded software very limited and esoteric functions (eg keyboard control for microwave ovens) or perform vital functions and control (eg, digital motor control, such as fuel control panel, and braking) Personal Computer led .. Private market computer software in the past two decades, word processing, spreadsheets, computer graphics, multimedia, entertainment, database management, personal and business finance programs, external networks, and database access to only a few hundred programs .. Web-based program. Websites refuge browser software, including executable instructions (eg ., CGI, HTML, Perl or Java) and data ..