Introduction of System Software :
System software (systems software) is computer software designed to operate and control the computer hardware and to provide a platform for running application software. System software can be separated into two different categories, operating systems and utility software.
- The operating system (prominent examples being z/OS, Microsoft Windows, Mac OS X and Linux), allows the parts of a computer to work together by performing tasks like transferring data between memory and disks or rendering output onto a display device. It also provides a platform to run high-level system software and application software.
- A kernel is the core part of the operating system that defines an API for applications programs (including some system software) and an interface to device drivers.
- Device drivers such as computer BIOS and device firmware provide basic functionality to operate and control the hardware connected to or built into the computer.
- A user interface “allows users to interact with a computer.” Since the 1980s the graphical user interface (GUI) has been perhaps the most common user interface technology. The command-line interface is still a commonly used alternative.
- A kernel is the core part of the operating system that defines an API for applications programs (including some system software) and an interface to device drivers.
- Utility software helps to analyze, configure, optimize and maintain the computer, such as virus protection.
- In some publications, the term system software also includes software development tools (like a compiler, linker or debugger).
In contrast to system software, software that allows users to do things like create text documents, play games, listen to music, or web browsers to surf the web are called application software. The line where the distinction should be drawn isn’t always clear. Most operating systems bundle such software. Such software is not considered system software when it can be uninstalled without affecting the functioning of other software. Exceptions could be e.g. web browsers such as Internet Explorer where Microsoft argued in court that it was system software that could not be uninstalled. Later examples are Chrome OS and Firefox OS where the browser functions as the only user interface and the only way to run programs (and other web browser can not be installed in their place), then they can well be argued to be (part of) the operating system and then system software.
Introduction of Application Software :
- Computer software is the set of instructions and data that tells a computer what to do and how to do it. Software provides instructions to your computer’s hardware.
- Without it, your PC or Mac would be little more than a large paperweight. But software actually comes in three main types: system software, programming software and application software.
- System software includes all the stuff that makes up a computer’s operating system (OS), including device drivers, configuration files and other key system components.
- This is the software that tells the computer’s hardware what to do and provides a foundation for the system.
- Programming software, or middleware, works much like the plumbing in your home by invisibly keeping things running behind the scenes. Application software, however, is the most important type for computer users because it is used to achieve many of the tasks that make us turn to our computers in the first place, such as word processing, web browsing and data crunching.
Application software applies the power of system software. This is why when downloading software, you have to find a version that is compatible with your running operating system. In essence, that software draws on the OS to create a Word document, spreadsheet or PowerPoint presentation.