This document provides an overview of computer operating systems. It defines an operating system as the first program that loads when a computer is turned on, acting as an interface between software and hardware. The document then lists key functions of operating systems like processor management, memory management, and file management. It categorizes operating systems as single-user, graphical user interface, multi-user, multithreading, multitasking, real-time, and distributed based on their capabilities. Examples are provided for each category.

1. COMP PROJECT
SNBP INTERNATIONAL SCHOOL, CHIKHALI
• Name – Varad Rajiv Pandare
• Grade – 10
• Division – Diamond
• Roll No. - 31

2. OPERATING SYSTEM

3. What is Computer Operating
System?
• The first program that loads
on a computer when you
switch it on is called its
operating system. It is a
program that acts as an
interface between the
software and computer
hardware. It is a specialized
set of programs that
manages the overall
functioning and its
resources.

4. Functions Of An
Operating System
Processor Management Memory Management Device Management File Management
Security Error Detection Job scheduling

5. Types Of Operating System
• SINGLE USER OPERATING SYSTEM
These operating systems could only support only one user to do
one thing at a time. The most popular single user operation
systems were:
Microsoft Windows 3.1, Microsoft Windows 95, and Microsoft DOS.

6. GRAPHICAL USER
INTERFACE
• This operating system is graphic
based and interactive in nature.
In it, menus and icons are
available to perform all
operations, just by clicking on
them. Now, a user does not
need to remember the lengthy
commands or their syntax as
they had to do in Command-
Line Interface
• Examples: Windows Operating
System, MacOS, Linux.

7. MULTI-USER OPERATING
SYSTEM
• Multi-user operating systems
allow more than one user to use
the same computer at the same
time. Some of the operating
systems that fall in this category
are: Linux, Unix and Microsoft
Windows.
• Windows 2000 was the first
version of windows, which
allowed the users to create
several user accounts on
a single machine.

8. MULTITHREADING
OPERATING SYSTEM • These are the operating
systems that allow
different parts of an
application or program to
run simultaneously. The
feature of multithreading
can delay the execution
response of certain
processes

9. MULTITASKING
OPERATING SYSTEM
• The ability to perform more than
one task at a single instant of time is
called "Multitasking". An
• operating system that is capable of
doing multiple tasks or executing
processes while using
• common processing resources like
CPU, is called a Multitasking
operating system.

10. REAL TIME OPERATING SYSTEM
(RTOS)
• RTOS is designed to handle real-life
scenarios and problems. Such operating
systems have the
• capability to prioritise the processes,
minimise execution time, and work
independently.
• Whenever you book an air ticket online,
you are actually communicating with a
real-time
• machine, which is handling your data
independently, giving you instant response,
and securing

11. DISTRIBUTED
OPERATING
SYSTEM
• Distributed operating system runs on
computers that are located in different
geographical areas, interconnected through a
network. It controls these interconnected
systems and makes themappear to be a single
computer.
• It allows all the linked machines to access the
data, software, andprocess tasks over a
network of geographically dispersed computers.

12. Hope you liked it!