There are three important components of an Operating system:

• Kernel
• Libraries
• Utilities

Kernel:

• It is the core component of the Operating system and contains sub-system like process management, I/O management, File sub-system, Memory Management, scheduler, Secondary storage management, etc.
• It is the first program that is loaded after the bootloader remains in the memory until the operating system is shut-down.
• The major aim of the kernel is to manage communication between software i.e. user-level applications and hardware i.e., CPU and disk memory.

Libraries:

The operating system libraries contain a function:

• for file manipulations
• for getting the current date and time and
• other related facilities related to an operating system
• It is defined in table os like os.rename( for changing the name of the files)

Utilities:

• It is a program or an applications that provides information about users.
• Example: top(displaying system and memory utilization), grep, ssh

Diag-1: Components of Operating System

Diag-2:

Related Posts:

• Introduction to Operating System
• Types of Operating system
• History of Linux Operating System
• Architecture of a Linux Operating System
• Functions of Operating System

Categories: Operating system (OS)