Do you know what is an operating
system? If you don’t know, I m here to tell you about this today. Like we know
that we are human and human has the heart. In this, do you know how does this
heart work? you may not know.
I mean to say that just as we humans
have heart, computers also have a heart. It is called an operating system(OS)
of the computer in technical language. Whenever you use a mobile or computer,
you are speaking android, windows, etc. these all names are of operating
systems. Sometimes android oreo, sometimes android pie, if we talk
about windows then windows 10, windows 8, etc.
But everyone has
some knowledge of all these things, but no one knows that what is
the work of the operating system means the heart of the computer.I would like
to tell you something about this topic. So, let's start.
What is Operating System?
The operating system is also called
operating software. It is known as “OS” in the small name. it is also called
the heart of the computer. The operating system is system software that works
as an interface between the user means you and computer hardware. I directly
explain it to you, whenever you run a computer, then os gives you the ways of
using it. For example, as you listen to music, do double click on a word
document, sitting after opening two their windows in the computer, write
something on the keyboard, you can never do anything from this without the help
of the operating system.
So this is the software of Operating
System, you run the computer with the help of it. therefore, whenever you
purchase a new computer, first of all, you will get the shopkeeper to load
windows 8 or windows 10 and after that, you will take the computer to your
house. Otherwise, You can not even on your computer without the Operating
system.
This also a question that why is it
called system software? If you want to run user software means application
software, you can never run it without the operating system. Operating System
helps computer hardware to run rightly. The operating system mainly does the
same things as takes input from the keyboard, processes
instruction, and sends output to the computer screen.
You see the operating system only when
you turn on the computer and when you turn off the computer. There is much
software that stays inside the computer such as Game, MS Word, Adobe Reader,
Photoshop, Etc. to run that all software we need a big software or program
which is known as the operating system.
We all know about android, which is
used in a mobile phone. Now you may have understood that what is an operating
system? Lets some more thing about it.
List Of Operating Systems:-
Different kind of operating system is
used to do a different kind of work. So, I will share the list of the operating
system which is mostly used.
1. Microsoft Windows.
2. Android.
3. Apple IOS.
4. Apple MacOs.
5. Kali Linux.
Work Of Operating Systems:-
Generally, an operating system does
many works, but first of all, when you turn on your computer, the operating
system loads first inside main memory means RAM and after that, it allocates
which hardware is required to user software. I have given below works of the
operating system.
1. Memory Management:-
The meaning of memory management is to
load primary and secondary memory. Main memory means RAM. There are many types
of small blocks in memory, where we can keep some data. Where there is the
address of every block. Main memory is fastest running memory which is used by
CPU Direct. Because CPU runs as many programs, all is in main memory.
Operating System Does this all Work:-
⇒ Which part of main
memory will be used, which will not be used, how much will be used, how much
will not be used.
⇒ The
operating system decides which process will be given money and how much
will be given to whom.
⇒When process asks memory, operating
system gives memory to that process( the meaning of process is a task or small
work which happens inside the computer.).
⇒ When process is
ended, operating system takes back its memory.
2. Process Management:-
The operating system decides when
talking about a multiprogramming environment which process will get a
processor, which will not get, and for how much time will get a processor. This
process is spoken as a process scheduling. The operating system makes this all
work.
· The
operating system also sees that the processor is empty or doing some
work, it is free and the processor has ended its work or not. If you
want you can see inside the task manager that how many tasks are running and
how many are not. The program which makes to do this all work, which is named
the traffic controller.
· CPU
allocates process.
· When the
work of process is over, it puts the processor in other work, and if
nothing has done, frees the processor.
3. Device Management:-
If you use a driver in the
computer, then you will know that such as sound driver, Bluetooth
driver, Graphics driver, WiFi Driver but it helps to run different drivers. But
it is run by an operating system.
· It
tracks all computer devices and it has to do this task the name of that program
is I/O controller.
· As
every different process requires the device to do some task, the work of
allocating is also done by the operating system. For example, one
process is going to perform some task such as playing video, taking print out,
then this both task will be done through task output device monitor and
printer. When this both device has to deliver the process this work is done by
the operating system.
· When the
work of the process is over, it deallocates the device back.
4. File
Management:-
Organizing all the directories in the
file is very much done. Because we can find data easily when needed. Then let's
know what is the work of the operating system in file management.
⇒ Organizes
information, location, and status. This all is done by the file system.
⇒ Who will get which resource?
⇒ Deallocates
resource.
5. Security:-
When you turn on your computer, it asks
you for a password, which means that the operating system stops your system
from unauthenticated access. Your computer is protected by this. And
you are not able to open some programs without a password.
6. Seeing System
Performance:-
It sees the performance of computers
and improves the computer. It keeps a record of how much time is
taken to give service by the operating system.
7. Telling Error:-
If any errors are coming in the system,
the operating system detects these and recovers.
8. Making synergy
between software and user:-
⇒ compiler assigns
tasks to the interpreter and assembler. Connects different software with users,
from which the user uses software nicely.
⇒ Provides
communication between user and system.
⇒ The operating system stays stored in
bios. And also it makes all application users friendly.
Features of Operating Systems:-
⇒ An operating
system is a collection of many programs, which run other programs.
⇒ It controls all output devices.
⇒ The responsibility of running all
application software is of the operating system.
⇒ The work of process scheduling means
allocating process or deallocate.
⇒ Gives information about occurring
errors and threats.
⇒ Establishes
good synergy between user and computer programs.
Types of operating systems.
1. Batch Processing
Operating Systems:-
Batch processing operating system
brought to remove the problem of the earlier era. If we tell about systems of
before it was taking much set up time. therefore this type of operating system
is called a batch processing operating system.
In this, any similar job is submitted
to CPU. That is run together for processing.
2. Network operating
system:-
The abbreviation of it is NOS. the full
form of NOS is a “network operating system”. This network operating system
provides services to that computer, which is connected to the
network. Example of it is shared file access, shared file
application, and printing capabilities.
3. Multi-process
System:-
There are many processors that use a
common physical memory in the multi process system. Computer power is much
faster. These processors work under an operating system.
4. Distributed operating
system:-
The one reason for using a distributed
operating system is the world has a powerful OS and microprocessors have become
much cheaper along with that communication system is also somewhat improved.
Because of this advancement distributed operating system is made, its price is
also cheaper.
5. Time Sharing Operating
System:-
In that, some time is given by the
operating system to complete every work nicely, from which every task can be
completed nicely. Every user uses a single system in
this, from which time is given to the CPU. This type of system
is also called a multi-tasking system.
6. Real-Time Operating
System:-
This is the most advanced operating
system, it does real-time process which means at the time of
launching missile, railway ticket booking, satellite, if we do late for even
one minute, everything would be wasted. So, this type of operating system is
not idle to use.
Thank you for reading my article if you
have any question or suggestion comment, we will get back to you shortly.
