What is Computer Software

What is Computer Software?

Software is a set of Instructions that enable user to interact with its hardware and perform various tasks. Software is an interface between user and computer. The program or software give command to hardware. It is responsible for controlling, integrating and management of hardware attached with the computer system. The term "software" is usually synonymous with Computer program and Application.  Internet Explorer, Microsoft Office, Chrome and Photoshop are all examples of software. Computer software also includes its operating system such as Windows or Mac or Linux.

Software is often divided into two main categories.  Systems software includes the operating system and all utilities that enable the computer to function. Applications software includes programs that do real work for users.

For example - Word processors, Spreadsheets, and database management systems fall under the category of applications software.

Software is a set of instructions data or programs used to operate computers and execute specific tasks. Software is a generic term used to refer to applications, scripts and programs that run on a device. Software can be thought of as the variable part of a computer and hardware the invariable part.

Types of Software:

Software can be divided into two main categories. These are System Software and Application Software.

System Software:

System software consists of several programs which are directly responsible for controlling, integrating and managing the individual hardware components of a computer system. It provides the interface between the user and component of the computer. System software are further divided into two major categories – System Management Program and developing software.

System Management Program includes an integrated system of programs which manages various operations of the processor. It controls I/O, manages storage and other services. Some of the important System Management Program includes Operating system, device driver and system utilities.

Operating System:

It consists of program which controls coordinates and supervises all activities of the components of a computer system. It allows connectivity between computer hardware and the user. The operating system performs following functions. It accepts input from keyboard and send output to the Output devices like display screen.

Device Drivers:

It is system software which acts like an interface between the device and the user. Every device whether it is a printer, monitor, mouse or keyboard has a driver program associated with it for its proper functioning with the computer. Device drivers are not independent programs they assist and are assisted by the operating system for the proper functioning.

System Utilities

The programs which are loaded into computer at the time of installation of operating system are called system utilities. They support, enhance, expand the existing program or data in the computer system.

Developing Software

The software which provides service for development and execution of application software are called as developing software.

Software can be purchased in the following conditions and procedures ----

a.       Shareware – It is distributed free or on the trial basis with the intention of sale when the period is over.

b.      Freeware – It is downloaded free of cost with copyright restrictions.

c.       Liteware – A type of shareware with some capabilities disabled till the full version is purchased.

d.      Public domain software – It is downloaded for free without restrictions.

e.      Open Source – It is type of software where the source code is furnished and user agree not to limit the distribution of improvement.