Software basically refers to programs. A program is a set of instructions given to a computer to carry out in order to solve a given problem or accomplished a well divine task.
We can also say Software is a list of instructions in a logical sequence which are needed to be performed in accomplishing a task or solving a given problem. It is the software that enables the hardware components to operate effectively and to provide very many useful services. It has been sometimes said that "computer without a program is an electronic idiot" because it can do nothing constructive or profitable.
Software can be categorized into two main part, these are system software and application software.
1. System Software
These are programs usually written by computer manufacturers and have direct effect on the control, performance and ease of use of the computer system. Examples are Language Translator, Operating Systems, Database Management Systems, etc.
2. Application Software
These are programs written by computer users to solve his/her own applications problems and they do not have any effect on the efficiency of the computer system. Examples are payroll, sales analysis, etc.
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