Please explain computer software

Computer Software is a programming code executed on a computer processor. It is a set of programs that can do particular work of the user. The software simply is a collection of documentation, instructions, and procedures that are capable of performing different tasks on a computer system. 

The computer software are divided into two major parts:

1. System Softwares – System software operates directly on hardware devices of the computer. It provides a platform to run an application and helps to run the hardware of the computer and the system itself. Operating systems, diagnostic tools, device drivers are some included in system software. These are mostly pre-installed on computers. Examples are Windows, Linux, Unix, etc. 
2. Application Softwares – designed for users benefit to complete different tasks. These are either pre-installed in the computers or can be installed as per the need. It includes word processing, Language processors, web browsing, translators, editors and almost any other task for which we install the software. Examples are Word, Excel, PowerPoint, Oracle, etc.