Skip to main content

CS401: Operating Systems

0%

Previous
Semaphores

Course Introduction

Course Syllabus

Unit 1: Introduction to Operating Systems

1.1: History of Operating Systems

What Is an Operating System?

History of Operating Systems

1.2: Operating System Structure

OS History, Services, and Structure

1.2.1: Abstract Computer Component Overview

Computer System Overview

1.2.2: Functional Overview

What Is an Operating System?

1.3: Different Operating Systems Overview

Different Operating Systems

1.3.1: 32-Bit vs. 64-Bit OS

32-bit and 64-bit Explained

32-bit and 64-bit Frequently Asked Questions

1.3.2: UNIX-based

The Unix Operating System: Mature, Standardized and State-of-the-Art

1.3.2.1: Linux (Ubuntu, Fedora, etc.)

What Is Linux?

1.3.2.2: Solaris

Solaris

1.3.3: Windows

Microsoft Windows

1.3.4: Mobile

iOS (Apple)

Android

Windows Phone

1.3.5: Real-Time

Introduction to Real-Time Systems

Introduction to Embedded and Real-Time Operating Systems

Real-time Operating Systems and Microkernels

Embedded System Software

VxWorks

QNX

Unit 2: Processes and Threads

2.1: Concurrency

Concurrency: Processes, Threads, and Address Spaces

Concurrency

2.2: Processes

Processes

Processes and Process Management

The Process Concept

2.3: Threads

A Brief Introduction to Threads

Threads and Concurrency

Threads

More on Threads

2.4: Context Switch

Context Switching

Context Switches

Processes and Threads

Putting the P in Threads

Unit 3: Synchronization

3.1: Synchronization: Relevance and Problems

Synchronization

Introduction to Synchronization

3.2: Race Conditions

Introduction to Race Conditions

3.3: Semaphores

Mutual Exclusion, Semaphores, Monitors, and Condition Variables

Semaphores

Java Semaphores

Programming Paradigms

Monitors and Condition Variables

Unit 4: CPU Scheduling

4.1: Scheduling General Objective

Thread Scheduling

CPU Scheduling

4.2: Goals

More on CPU Scheduling

4.3: Types

Types of CPU Scheduling

4.4: Algorithms

Scheduling Algorithms

Unit 4 Exercises and Assessment

CPU Scheduling Simulation Exercises

Unit 4 Assessment

Unit 5: Deadlock

5.1: Definition

Deadlock

Deadlock

5.2: Deadlock Prevention and Avoidance

Operating Systems

Banker's Algorithm Problem Set

5.3: Deadlock Detection and Recovery

Deadlock

Deadlock Simulation Lab

Unit 6: Memory Management

6.1: Overview of Memory Management

Memory Management

6.1.1: Memory Hierarchy

Overview of Memory Hierarchy

6.1.2: OS Interaction with Memory Levels

Paging

6.1.3: Virtual Memory

Virtual Memory

More on Virtual Memory

6.2: Allocating Memory

Memory Management

Memory Management Simulation

6.3: Memory Access

Segmentation

Intel Memory Management

The GDT

Paging and Memory Access

Unit 7: File System

7.1: Introduction to File Systems

File Systems and Disk Management

File Systems

7.2: File Allocation Methods

File Management

The File System

7.3: Disk Management Algorithms

File Systems and Disk Management

Queueing Models

Disk Scheduling

Unit 7 Activities

Disk Scheduling Simulation Lab

File System Simulation Lab

Disk Management Algorithms Exercises

Unit 8: Security

8.1: Introduction to Security

Introduction to Security

Protection and Security

More on Security

8.2: Malicious Software Overview

Malware: Viruses and Worms

Bots and Botnets

8.3: Security Techniques

Protection

Security Strategies

Security Techniques

Intrusion Detection and Prevention Systems

Unit 9: Networking

9.1: Introduction

Introduction to Networks

Computer Networking

More on Networking

9.2: Protocol Architecture

Layering and the Link Layer

9.3: The Reference Models

Computer Networking

TCP/IP Networking

An Overview of TCP/IP Protocols and the Internet

Animation of the OSI Model

Introduction to the OSI Model

9.4: Network Intrusion Detection

Intrusion Detection and Prevention Systems

Study Guide

CS401 Study Guide

Course Feedback Survey

Course Feedback Survey

Certificate Final Exam

CS401: Certificate Final Exam

Archived Materials
Next

Course Catalog
- All categories
Arts & Humanities
Art History

Communication

English

Philosophy
- Business Administration
- Computer Science
- English as a Second Language
Professional Development
General Knowledge for Teachers
Science and Math
Biology

Chemistry

Mathematics

Physics
Social Science
Economics

Geography

History

Political Science

Psychology

Sociology
Home
Specialization Programs
Specialization Programs MBA Degree Program
Help
Getting Started Help Center & FAQ

Search

Search

Toggle search input

You are currently using guest access

Log in

Course Catalog Collapse Expand

All categories

Arts & Humanities

Art History

Communication

English

Philosophy

Business Administration

Computer Science

English as a Second Language

Professional Development

General Knowledge for Teachers

Science and Math

Biology

Chemistry

Mathematics

Physics

Social Science

Economics

Geography

History

Political Science

Psychology

Sociology

Home Specialization Programs Collapse Expand

Specialization Programs MBA Degree Program

Help Collapse Expand

Getting Started Help Center & FAQ

Expand all Collapse all

CS401: Operating Systems
Unit 3: Synchronization
3.3: Semaphores
Semaphores

Semaphores

Completion requirements

Read chapter 2 on pages 7–9 and chapter 4 on pages 61–120.

Click on Semaphores to open the resource.

Contact site support

You are currently using guest access (Log in)

Get the mobile app

Powered by Moodle

© Saylor Academy 2010-2024 except as otherwise noted. Excluding course final exams, content authored by Saylor Academy is available under a Creative Commons Attribution 3.0 Unported license. Third-party materials are the copyright of their respective owners and shared under various licenses. See detailed licensing information. Saylor Academy®, Saylor.org®, and Harnessing Technology to Make Education Free® are trade names of the Constitution Foundation, a 501(c)(3) organization through which our educational activities are conducted.

Privacy Policy Terms & Conditions

Saylor Academy © 2010-2025 except as otherwise noted. Excluding course final exams, content authored by Saylor Academy is available under a Creative Commons Attribution 3.0 Unported license. Third-party materials are the copyright of their respective owners and shared under various licenses. See detailed licensing information. Saylor Academy®, Saylor.org®, and Harnessing Technology to Make Education Free® are trade names of the Constitution Foundation, a 501(c)(3) organization through which our educational activities are conducted.