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i + SYSTEM SOFTWARE
A software that controls and manages all the activities of a computer system is called
System software. The system software is like a manager who manages a computer system.
It is the most important software to operate a computer. System software can be classified
into three categories: Operating System, Language Translator and Utility Software.
System Software
Operating Language Utility
System Translator Software
Operating System
When we switch on a computer, the first thing that system software does is to prepare
the computer for you to work on it. It loads important files so that you can work and run
the application software. This software is called the Operating System.
It manages the computer’s memory, processes data and controls all its software as well
as hardware. It serves as an interface between the user and the hardware. Without an
operating system, a computer is useless.
Types of operating systems: Operating systems usually come preloaded on any computer
you buy. Most people use the operating system that comes with their computer, but it is
possible to upgrade or even change an operating system.
The three most common operating systems for personal computers are Microsoft
Windows, Mac OS and Linux. Other known names are iMac, UNIX and DOS.
Microsoft Windows is the most popular operating system used by people across
the world. There are many versions like Windows 98, Windows 2000, Windows XP,
Windows 7, Windows 8, Windows 10 and
Windows 11. Windows 11 is the latest version.
Functions of an Operating System
An operating system performs three types of
functions:
• Manages computer resources
◦ Coordinates memory, processing storage Info Byte
and printers Booting is a process that loads the
◦ Monitors system performance operating system and prepares
◦ Provides security the system for use.
◦ Starts-up the computer
• Provides user interface
◦ The interface can be Character User Interface (CUI) or Graphical User Interface (GUI)
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Types of Software

