AlgoDaily - Introduction to Operating Systems

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Introduction to Operating Systems

Computing systems are composed of software and hardware. For a machine to work, these components need an intermediary to manage the communication between them. Operating system serves this purpose by allowing the user to interact with computer software and hardware.

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1. LESSON

What Is The Main Purpose Of An Operating System?

Let us begin by answering the question, What is an Operating System? An Operating System (OS) is a program that, once installed on a device, controls, coordinates, and integrates all of the device's application programs. It enables communication between a computer's software and hardware, as illustrated in the diagram below. ![](https://stor...

8 minutes Mark Completed

2. LESSON

Operating Systems Definition and Concepts

This lesson is an introduction about operating systems, with a focus on the following key points, What are operating systems, their purpose, importance, and working in computer systems. Components and modes of an operating system. Computing systems are composed of software and hardware. For a mac...

15 minutes Mark Completed

3. LESSON

Processes and Threads in Operating Systems

This lesson is an introduction on processes and threads, with a focus on the following key points, What are processes and threads, and their role in the operating system. Detailed overview of process and thread execution. Whenever you launch an application on a computer, the operating system crea...

15 minutes Mark Completed

4. LESSON

OS Synchronization and Scheduling

This lesson is regarding synchronization and scheduling of processes in an OS, with a focus on the following key points, Techniques used by the operating system to schedule processes. Problems with process and thread execution, and synchronization methods to resolve them. Computers are always exe...

16 minutes Mark Completed

5. LESSON

OS Main and Virtual Memory Management

This lesson is about the memory management functions of an OS, with a focus on the following key points: Memory management issues that may arise in a computer system. Techniques used by the operating system to solve memory management issues and manage them. Computer systems are expected to provide...

17 minutes Mark Completed

6. LESSON

Defining Virtual Memory Thrashing

Decoding Virtual Memory and Its Downside: Thrashing Introduction to Virtual Memory Virtual memory serves as an effective extension to your computer's physical RAM. The operating system cleverly manages memory between the hard disk and actual RAM, giving each program the feeling that it has ample and continuous working memory. But, if you p...

17 minutes Mark Completed

7. LESSON

Introduction to File Systems in Operating Systems

File Systems in Operating Systems In this lesson, we will learn: How files are organized on computer systems Techniques used by the OS to manage files Computer systems store tons of user files. For us, these are documents, pictures, videos, etc. For the computer, they are just sequences of bits....

20 minutes Mark Completed

8. LESSON

Multithreading in Operating Systems with Modern Programming

In this lesson, we'll learn about multithreading, with a focus on the following key points, What is multithreading, and why do we use it? Overview of the importance of multithreading in modern programming applications. Have you ever found yourself in a situation when you had to perform multiple t...

12 minutes Mark Completed