Component's of a Software

Sometimes called componentware, software designed to work as a component of a larger application. A good analogy is the way personal computers are built up from a collection of standard components: memory chips, CPUs, buses, keyboards, mice, disk drives, monitors, etc. Because all of the interfaces between components are standardized, it is possible to mix components from different manufacturers in a single system.

Similarly, the goal of component software is to standardize the interfaces between software components so that they too can work together seamlessly. Two standards -- OLE and OpenDoc -- are designed to help programmers develop components that can work together. Many analysts believe that component software is the natural extension of object-oriented programming and that it will become the standard programming paradigm for years to come

Software is instructions and information that a computer uses to accomplish a task. We usually think of software as being stored on such media as hard disks, floppy disks, and optical discs, though actually software can be stored on any recordable medium—even paper. Also, software is not just for computers: It is used in many situations where machines carry out complex tasks—for example, handling emissions controls in an automobile. But for our purposes, we'll consider only software that is processed on computers and stored on common computer media.

Software can be divided into two primary categories: system software and application software.

Software is a generic term for organized collections of computer data and instructions, often broken into two major categories: system software that provides the basic non-task-specific functions of the computer, and application software which is used by users to accomplish specific tasks.

System software is responsible for controlling, integrating, and managing the individual hardware components of a computer system so that other software and the users of the system see it as a functional unit without having to be concerned with the low-level details such as transferring data from memory to disk, or rendering text onto a display. Generally, system software consists of an operating system and some fundamental utilities such as disk formatters, file managers, display managers, text editors, user authentication (login) and management tools, and networking and device control software.

Application software, on the other hand, is used to accomplish specific tasks other than just running the computer system. Application software may consist of a single program, such as an image viewer; a small collection of programs (often called a software package) that work closely together to accomplish a task, such as a spreadsheet or text processing system; a larger collection (often called a software suite) of related but independent programs and packages that have a common user interface or shared data format, such as Microsoft Office, which consists of closely integrated word processor, spreadsheet, database, etc.; or a software system, such as a database management system, which is a collection of fundamental programs that may provide some service to a variety of other independent applications.

Software is created with programming languages and related utilities, which may come in several of the above forms: single programs like script interpreters, packages containing a compiler, linker, and other tools; and large suites (often called Integrated Development Environments) that include editors, debuggers, and other tools for multiple languages.