{"id":2427,"date":"2020-12-17T00:00:00","date_gmt":"2020-12-16T18:30:00","guid":{"rendered":"https:\/\/siteproxy.ruqli.workers.dev:443\/https\/www.guru99.com\/os-tutorial.html"},"modified":"2026-02-16T18:39:00","modified_gmt":"2026-02-16T13:09:00","slug":"os-tutorial","status":"publish","type":"post","link":"https:\/\/siteproxy.ruqli.workers.dev:443\/https\/www.guru99.com\/os-tutorial.html","title":{"rendered":"Operating System Tutorial","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<div class='code-block code-block-1' style='margin: 8px 0; clear: both;'>\n<style>\n .float-ad-left {\n  margin-right: 6px;\n }\n @media(min-width: 768px) {\n  .float-ad-left {\n   float: left;\n   width: 345px !important;\n   height: 280px !important;\n  }\n }\n @media(max-width: 767px) {\n  div#guru99_top_banner.float-ad-left {\n   width: 345px;\n   height: 100px !important;\n  }\n }\n<\/style>\n\n<div id='guru99_top_banner' class=\"float-ad-left\">\n <script>\n googletag.cmd.push(function() { googletag.display('guru99_top_banner');\n });\n <\/script>\n<\/div><\/div>\n\n<h2>Operating System (OS) Tutorial Summary<\/h2>\n<hr>\n<p>This Operating System Tutorial offers all the basic and advanced concepts of Operating System. This Operating System course is designed for beginners, professionals, and also GATE aspirants for their exam preparation. This tutorial will provide you deep knowledge about each Operating System concept. In this Operating System development tutorial, the content is described in a detailed manner and it will solve all your queries regarding OS.<\/p>\n<h3>What is an OS?<\/h3>\n<hr>\n<p>An Operating System (OS) is a software that acts as an interface between the end-user and computer hardware. Every computer must have at least one OS to run other software programs and application like MS Word, Chrome, Games, etc.<\/p>\n<h3>What should I know?<\/h3>\n<hr>\n<p>Nothing! This tutorial for the basics of Operating system is designed for absolute beginners.<\/p>\n<p><a style=\"background: #3182CE !important;\" class=\"button button-blue\" href=\"#cb8727cec4\" data-lasso-id=\"447891\">\ud83d\udc49 Download Operating System Tutorial PDF<\/a><\/p>\n<h2>Operating System (OS) Syllabus<\/h2>\n<h3>Introduction<\/h3>\n<table class=\"table\">\n<tbody>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 1<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/operating-system-tutorial.html\" data-lasso-id=\"222870\">What is Operating System?<\/a><\/strong> \u2014 Explain Types of OS, Features and Examples<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 2<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/semaphore-in-operating-system.html\" data-lasso-id=\"222871\">What is Semaphore?<\/a><\/strong> \u2014 Binary, Counting Types with Example<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 3<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/components-of-operating-system.html\" data-lasso-id=\"222872\">Components of Operating Systems<\/a><\/strong> \u2014 Explain OS Components<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class='code-block code-block-2' style='margin: 8px 0; clear: both;'>\n<style>\n.guru99_incontent_21 {\n\tmin-height: 280px !important;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n}\n<\/style>\n\n<div align=\"center\" id=\"guru99_mobile_display\" class=\"guru99_incontent_21\">\n    \n  <script>\n    googletag.cmd.push(function() { googletag.display('guru99_mobile_display'); });\n  <\/script>\n<\/div><\/div>\n\n<h3>Advanced Stuff<\/h3>\n<table class=\"table\">\n<tbody>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 1<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/microkernel-in-operating-systems.html\" data-lasso-id=\"222873\">Microkernel in Operating System<\/a><\/strong> \u2014 Architecture, Advantages<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 2<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/system-call-operating-system.html\" data-lasso-id=\"222874\">System Call in OS<\/a><\/strong> \u2014 Types and Examples<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 3<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/file-systems-operating-system.html\" data-lasso-id=\"222875\">File Systems in Operating System<\/a><\/strong> \u2014 Structure, Attributes, Type<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 4<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/real-time-operating-system.html\" data-lasso-id=\"222876\">Real-time operating system (RTOS)<\/a><\/strong> \u2014 Components, Types, Examples<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 5<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/remote-procedure-call-rpc.html\" data-lasso-id=\"222877\">Remote Procedure Call (RPC) Protocol<\/a><\/strong> \u2014 What is, Types, Features, Advantages<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 6<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/cpu-scheduling-algorithms.html\" data-lasso-id=\"222878\">CPU Scheduling<\/a><\/strong> \u2014 CPU Scheduling Algorithms in Operating Systems<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 7<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/process-management-pcb.html\" data-lasso-id=\"222879\">Process Management in Operating System<\/a><\/strong> \u2014 PCB in OS<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 8<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/deadlock-in-operating-system.html\" data-lasso-id=\"222880\">Deadlock in Operating System<\/a><\/strong> \u2014 Introduction to DEADLOCK in OS<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 9<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/fcfs-scheduling.html\" data-lasso-id=\"222881\">FCFS Scheduling Algorithm<\/a><\/strong> \u2014 What is, Example Program<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 10<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/paging-in-operating-system.html\" data-lasso-id=\"222882\">Paging in Operating System<\/a><\/strong> \u2014 OS Paging with Example<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 11<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/what-is-livelock-example.html\" data-lasso-id=\"222883\">Livelock<\/a><\/strong> \u2014 What is, Example, Difference with Deadlock<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 12<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/inter-process-communication-ipc.html\" data-lasso-id=\"222884\">Inter Process Communication (IPC)<\/a><\/strong> \u2014 What is Inter Process Communication?<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 13<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/round-robin-scheduling-example.html\" data-lasso-id=\"222885\">Round Robin Scheduling Algorithm<\/a><\/strong> \u2014 Learn With Example<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 14<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/process-synchronization.html\" data-lasso-id=\"222886\">Process Synchronization<\/a><\/strong> \u2014 Critical Section Problem in OS<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 15<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/process-scheduling.html\" data-lasso-id=\"222887\">Process Scheduling<\/a><\/strong> \u2014 Long, Medium, Short Term Scheduler<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 16<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/priority-scheduling-program.html\" data-lasso-id=\"222888\">Priority Scheduling Algorithm<\/a><\/strong> \u2014 Preemptive, Non-Preemptive EXAMPLE<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 17<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/os-memory-management.html\" data-lasso-id=\"222889\">Memory Management in OS<\/a><\/strong> \u2014 Contiguous, Swapping, Fragmentation<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 18<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/shortest-job-first-sjf-scheduling.html\" data-lasso-id=\"222890\">Shortest Job First (SJF)<\/a><\/strong> \u2014 Preemptive, Non-Preemptive Example<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 19<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/virtual-memory-in-operating-system.html\" data-lasso-id=\"222891\">Virtual Memory in OS<\/a><\/strong> \u2014 What is, Demand Paging, Advantages<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 20<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/bankers-algorithm-in-operating-system.html\" data-lasso-id=\"222892\">Banker&#8217;s Algorithm in Operating System<\/a><\/strong> \u2014 What is Banker&#8217;s Algorithm?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Know the Differences<\/h3>\n<table class=\"table\">\n<tbody>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 1<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/mutex-vs-semaphore.html\" data-lasso-id=\"222893\">Mutex vs Semaphore<\/a><\/strong> \u2014 What&#8217;s the Difference?<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 2<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/difference-between-process-and-thread.html\" data-lasso-id=\"222894\">Process vs Thread<\/a><\/strong> \u2014 What&#8217;s the difference?<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 3<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/different-types-ram-random-access-memory.html\" data-lasso-id=\"222895\">Types of RAM (Random Access Memory)<\/a><\/strong> \u2014 Different Types of RAM Explained<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 4<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/difference-between-rom-ram.html\" data-lasso-id=\"222896\">RAM vs ROM<\/a><\/strong> \u2014 What&#8217;s the Difference?<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 5<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/difference-between-ddr3-and-ddr4.html\" data-lasso-id=\"222897\">DDR3 vs DDR4<\/a><\/strong> \u2014 Must Know Differences<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 6<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/difference-between-multiprocessing-and-multithreading.html\" data-lasso-id=\"222898\">Multithreading vs Multiprocessing<\/a><\/strong> \u2014 What&#8217;s the difference?<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 7<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/difference-between-microprocessor-and-microcontroller.html\" data-lasso-id=\"222899\">Microprocessor and Microcontroller<\/a><\/strong> \u2014 What&#8217;s the Difference?<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 8<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/preemptive-vs-non-preemptive-scheduling.html\" data-lasso-id=\"222900\">Preemptive vs Non-Preemptive Scheduling<\/a><\/strong> \u2014 Key Differences<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 9<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/paging-vs-segmentation-difference.html\" data-lasso-id=\"222901\">Paging vs Segmentation<\/a><\/strong> \u2014 Key Differences<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 10<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/best-file-compression-software.html\" data-lasso-id=\"222902\">Zip File Software<\/a><\/strong> \u2014 20 Best Zip File Software | Unzip Program | File Compression<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 11<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/free-winzip-alternative.html\" data-lasso-id=\"222903\">Winzip Alternatives<\/a><\/strong> \u2014 15 Best FREE Winzip Alternatives (ZIP File Software)<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 12<\/strong><\/td>\n<td><strong><a href=\"\/https\/www.guru99.com\/best-operating-systems.html\" data-lasso-id=\"319907\">BEST Operating Systems<\/a><\/strong> \u2014 8 BEST Operating Systems<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class='code-block code-block-3' style='margin: 8px 0; clear: both;'>\n<style>\n.guru99_incontent_21 {\n\tmin-height:280px !important;\n}\n<\/style>\n\n<!-- Tag ID: guru99_static_3 -->\n<div id='guru99_incontent_2' class=\"guru99_incontent_21\">\n  <script>\n    googletag.cmd.push(function() { googletag.display('guru99_incontent_2'); });\n  <\/script>\n<\/div>\n<div class='yarpp yarpp-related yarpp-related-shortcode yarpp-template-yarpp-template-custom'>\n<div class=\"custom-related-posts\">\n    <h3 class=\"related-title\">RELATED ARTICLES<\/h3>\n    <ul>\n            <li>\n            <a 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Engineer Interview Q &amp; A<\/td>\n<\/tr>\n<tr>\n<td class=\"responsivetable\">\ud83d\udc49<strong> Lesson 3<\/strong><\/td>\n<td><strong><a href=\"https:\/\/siteproxy.ruqli.workers.dev:443\/https\/career.guru99.com\/operating-system-quiz\/\" data-lasso-id=\"222905\">Operating System Quiz<\/a><\/strong> \u2014 Operating System MCQ (Multiple Choice Questions)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div>\n<h2><span id=\"why_learn_operating_systems\">Why learn Operating Systems?<\/span><\/h2>\n<p>Here are the reasons for learning Operating systems:<\/p>\n<ul>\n<li>Allows you to hide details of hardware by creating an abstraction<\/li>\n<li>Easy to use with a GUI<\/li>\n<li>Offers an environment in which a user may execute programs and applications<\/li>\n<li>Operating System acts as an intermediary among applications and the hardware components<\/li>\n<li>It provides the computer system resources in easy to use formats<\/li>\n<\/ul>\n<\/div>\n<div>\n<h2><span id=\"applications_of_the_operating_systems\">What are the applications of the Operating System?<\/span><\/h2>\n<p>Following are some of the important activities that an Operating System performs:<\/p>\n<ul>\n<li><strong>Security:<\/strong> Operating system prevents unauthorized access to programs and data.<\/li>\n<li><strong>Controls the performance of a system:<\/strong> Recording delays between a request for a service and response from the system.<\/li>\n<li><strong>Job accounting:<\/strong> You can keep track of the time and resources.<\/li>\n<li><strong>Error detecting aids:<\/strong> OS helps to trace error messages and other debugging and error detecting aids.<\/li>\n<li><strong>Helps to Coordinate between other software:<\/strong> Coordination and assignment of compilers, interpreters, assemblers, and other software.<\/li>\n<\/ul>\n<\/div>\n<div class='code-block code-block-4' style='margin: 8px 0; clear: both;'>\n<style>\n.guru99_incontent_31 {\n\tmin-height:280px !important;\n}\n<\/style>\n\n<!-- Tag ID: guru99_static_4 -->\n<div id='guru99_incontent_3' class=\"guru99_incontent_31\">\n  <script>\n    googletag.cmd.push(function() { googletag.display('guru99_incontent_3'); });\n  <\/script>\n<\/div><\/div>\n\n<div>\n<h2><span id=\"features_of_operating_systems\">Features of Operating System:<\/span><\/h2>\n<p>Here is a list of commonly found important features of an Operating System:<\/p>\n<ul>\n<li>Protected and supervisor mode<\/li>\n<li>Allows disk access and file systems device drivers networking security<\/li>\n<li>Program execution<\/li>\n<li>Memory management<\/li>\n<li>Handling I\/O operations<\/li>\n<li>Manipulation of the file system<\/li>\n<li>Error Detection and handling<\/li>\n<li>Resource allocation<\/li>\n<li>Information and Resource Protection<\/li>\n<\/ul>\n<\/div>\n<h2>What will you learn in this OS Tutorial?<\/h2>\n<p>In this Operating system tutorial, you will learn the operating system&#8217;s concept, types of operating systems, real-time operating systems, paging, scheduling methods (SJF, Round robin), System calls in the operating system, Banker\u2019s algorithm, Livelock, and deadlock mechanism.<\/p>\n<h2>Are there any prerequisites for this OS Tutorial?<\/h2>\n<p>This OS tutorial has been prepared for absolute beginners. It helps them to understand the basic to advanced and intermediate concepts related to Operating System. However, before learning this OS tutorial, it is preferable that you know the fundamental computer concepts like what is keyboard, mouse, monitor, Input-Output, primary memory(RAM), secondary memory(ROM), etc.<\/p>\n<h2>Who Should Learn Operating System?<\/h2>\n<p>This OS tutorial is designed to help beginners as well as professionals. After learning the operating system, you can explore job and career opportunities as an Operating Systems Analyst, Operating Systems Programmer. This OS tutorial is also designed to help GATE aspirants for exam preparation and useful for examinations like NTA UGC NET Computer Science and Applications.<\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Operating System (OS) Tutorial Summary This Operating System Tutorial offers all the basic and advanced concepts of Operating System. This Operating System course is designed for beginners, professionals, and also GATE aspirants for their exam preparation. This tutorial will provide you deep knowledge about each Operating System concept. 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