What is Software || Types of Software || System Software || Application Software Lecture 6

Software’s  System Software’s  Application Software’s
SOFTWARE
What is software? Computer software, or simply software, is a collection of data or computer instructions that tell the computer how to work. This is in contrast to physical hardware, from which the system is built and actually performs the work.
System software: System software is a type of computer program that is designed to run a computer's hardware and application programs. ... The operating system (OS) is the best-known example of system software. The OS manages all the other programs in a computer.

Operating system:
An operating system is the core software that allows a computer to run as a useful device. It manages the hardware, the user interface and all other software running on the computer. Without an operating system, a computer is just a collection of components heating up the room as no-one would be able to make any practical use of the machine. A large number of operating systems have been developed over the years; each designed with a certain kind of computer in mind. For instance:
 Windows or Linux - for personal computers
 MacOS - for Macs
 Unix - for mainframes
 Symbian, Android - for mobile phones
Although these operating systems have been developed to work with very different types of computers, they all share a number of common functions:
 Providing a user interface
 Managing the computer's memory
 Managing the hardware

User Interface
People need a way of interacting with machines if they are to be useful.
This interaction is made possible by the user interface.
There are many different types of user interface and we will look at them in more detail in another mini-website.
However, the one that you are most familiar with is probably the Graphical User Interface (GUI).
A GUI provides you with the functionality to create and manage the windows that you use on your screen. It also provides you with features such as icons on your desktop, buttons and scrollbars.
Command Line Interface(CLI)
An OS also provides a method of interaction that is non-graphical, called the command line interface (CLI). This is a text-only service with feedback from the OS appearing in text. Using a CLI requires knowledge of the commands available on a particular machine.