Operating System Courses Online

About

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix. The first version of FreeBSD was released in 1993. In 2005, FreeBSD was the most popular open-source BSD operating system, accounting for more than three-quarters of all installed simply, permissively licensed BSD systems.

FreeBSD has similarities with Linux, with two major differences in scope and licensing: FreeBSD maintains a complete system, i.e. the project delivers a kernel, device drivers, userland utilities, and documentation, as opposed to Linux only delivering a kernel and drivers, and relying on third-parties for system software; and FreeBSD source code is generally released under a permissive BSD license, as opposed to the copyleft GPL used by Linux.

The FreeBSD project includes a security team overseeing all software shipped in the base distribution. A wide range of additional third-party applications may be installed using the pkg package management system or FreeBSD Ports, or by compiling source code.

Much of FreeBSD's codebase has become an integral part of other operating systems such as Darwin (the basis for macOS, iOS, iPadOS, watchOS, and tvOS), TrueNAS (an open-source NAS/SAN operating system), and the system software for the PlayStation 3 and PlayStation 4 game consoles.

The course participants will learn:

• How and why to configure and compile your own kernel?
• How to create device files?
• How to customize your system to suit your needs?
• How to optimize your system?
• How is it implemented the system startup process?
• How to create, manage, and delete user accounts?
• To restrict user resources (memory, CPU, number of concurrent sessions, etc...)?

About

Unix is an operating system designed for use on any kind of computer or computing device. Current versions of Unix are running on everything from supercomputers to mobile phones. It is a multi-tasking, multi-user system. This means that a person using a Unix system can run more than one job, that is do more than one task at once, and that more than one user can share the resources of a single Unix system. Multi-tasking is common on personal computers now, but it was not always and most desktop personal computers probably still run as single user systems. Some Unix systems have a graphical user interface (GUI) or graphical desktop environment similar to Microsoft Windows or Mac OS. Nonetheless, to take best advantage of Unix it is worth knowing something about how to use the system without the GUI. Many Unix systems are released under one or other of the ‘free’ software licences, such as the GPL. So, they are available to everyone at no cost while providing full freedom to use, adapt, and share all the tools of these powerful operating systems. Unix is also part of the underlying technology of the Internet. Although no operating systems has any exclusive claim to the Internet, many of the standard technologies, protocols and applications that make up the Internet were first developed on Unix systems. Unix is also an attractive tool for internetworking because it was designed to be a mult-user system from the outset. Many of the web servers that serve up the World Wide Web for example run a program called Apache under Unix.

About

AROS is an recursive acronym for the AROS Research Operating System, an AmigaOS (TM) API compatible OS, with certain improvements, that is portable and freely available. It is developed as a collaborative project, with the source code being available under an open source license. AROS is not tied to any company policy or computer hardware. No financial or legal circumstances will have any negative effect on the progress of AROS. It has a secure future. Moreover AROS effort helps the Amiga community in general. Projects such as AfA-OS which improves the Classic Amiga OS and the free kickstart ROM which is useful in improving UAE (software), Minimig and FPGA Arcade(hardware) and others. As more Amiga 68k hardware and accelerators become scarce and expensive some thought was made to preserve the Amiga spirit. One approach out of many is AROS which can run on Motorola 68k, PowerPC, Intel x86 and compatibles, a select ARM SOCs. Where anyone can use an alternative to most mainstream Operating Systems (OS), for nostalgic reasons, educationally as an alternative to Linux, to experience new ideas or just be different.

About

Puppy Linux is an operating system like Microsoft Windows or Mac OS. More specifically it is a free distribution (distro) of Linux that can run live (without installation). It is specifically designed to be smaller than other distros (and faster or suitable for older hardware) but nevertheless fully featured. It contains several applications including a web browser, word processor, spreadsheet and media player. It was created by Barry Kauler in 2003.

Content

• History
  • Release versions
• Features
• User interface
• Package and distribution management
• Building the distribution
• Official variants
• Reception

About

This course is about operating systems concepts as they have evolved through the history of operating systems implementations. Politics and implementation details are irrelevant. Emphasis is given to technically successful designs, aesthetic operating systems, and not on commercial success. In fact, mere commercial success isn't sufficient to make an operating system noteworthy. It also emphasizes working implementations over mere projects.

About

This is a step-by-step guide for backing up and restoring the operating system(s) installed on your PC (Linux, Windows, etc). Specifically, it describes how to back up and restore hard drive partitions and MBR boot code using free tools and discusses backup and restoration procedures and scenarios. Backup and restoration take about 10 minutes each. Uses and benefits include: In short, this is a relatively easy procedure well worth taking the time to learn! Mastering this technique takes most of the fear out of system changes - you know how to press the 'rewind' button on everything you do, and the rewind button works reliably and quickly. What OS(es) you're running doesn't matter. The only limitations are the filesystems being used and the amount of data involved. Most Linux and Windows systems are supported for backup. While some of the tools in this guide are available for use on Macs, this guide does not cover Mac backups specifically. This guide supports the following filesystems (at least): ext2/3/4, reiserfs, reiser4, btrfs, xfs, jfs, vfat, fat16/32, ntfs, iso9660. Encrypted partitions cannot be backed up using the methods in this guide.

About

This course is a comprehensive guide to Mac OS X Leopard, the 6th version of the operating system that runs on Apple's Macintosh computers. Its successors were Snow Leopard (2009), Lion (2011), and Mountain Lion (2012). This course is written for both new and experienced users alike. If you are a new Mac user, you can use This course to familiarize yourself with the Mac environment. If you are a more experienced user, you can use it to learn about advanced features that will make using your Mac easier and more enjoyable. However, This course cannot be everything for everyone. If you have never used a computer before, you should learn the basics of computing before you read This course. Likewise, if you already know Mac OS X like the back of your hand and want to learn about the operating system's underpinnings, you probably won't find what you're looking for here. This course includes a thorough discussion of the Mac OS and its included applications. It does not discuss iLife or iWork, suites of multimedia and productivity applications, because they are technically not parts of the Mac OS. Please refer to the course iLife for information on these applications.

About

Operating systems are typically segregated into kernel and userland. The Kernel provides a layer for the software to interact with the hardware. It abstracts the hardware allowing a lot of software to run identically on very different hardware. The kernel provides system calls to allow the userland to interact with it. The kernel handles many things including filesystems (not always but typically), devices, and control of processes. The userland exists as everything else other than the kernel. All processes created by the user including the terminal exist in userland. The Graphical User Interface (GUI) that displays programs lives in userland. The Unix shell is a command interpreter program that serves as the primary interface between uses and the OS in a command line environment, e.g. a terminal or terminal simulator. A shell is an essential (often preferred) tool, but it is just a ordinary user program that uses system calls to get most of the work done - so its just a "shell". Many shells exist in the modern era, each with their own set of features. The most common is the bourne shell. The bourne shell (known colloquially by it's POSIX location as /bin/sh) has been around for many decades now and may be found on essentially any Unix computer. While it lacks certain interactivity features, it's so commonplace that any script written for it will run on essentially any Unix system.

About

An operating system is software that manages and organises that computer's resources and basic functions, including: Operating system Unix was developed by a group of employees from Bell Labs under the guidance of Dennis Ritchie, Ken Thompson and Brian Kernighan in 1969. This operating system was created under the fundamentals of simplicity as they had few people working on the project and wanted to complete it relatively quickly. The design standards set by Unix paved the way for the modern computing world (except Windows). At the end of 1970's, the University of California, Berkeley made a number of improvements to the source code of UNIX, including the work with protocols of TCP/IP. Their work was known as BSD (Berkeley Software Distribution). It spread under licence, allowing to refine and improve the product and transfer the result to third parties, with or without source codes, provided that authorship of the code written in Berkeley is indicated. While there was some legal trouble, the case was ruled in favor of the Regents of California and that set a precedent that Unix-like operating systems are not under copyright so long as they contain no original Unix source code. Thus the BSD project had to remove all Unix based code from 4.4 BSD terming their new creation 4.4BSD lite. This BSD was limited in features so projects like FreeBSD and NetBSD sprung up to fill in the gaps. In the beginning of the 1990s, a student from Helsinki University Linus Torvalds started kernel development for IBM computers, that was known as w:Linux\Linux. Currently, GNU/Linux (a set of different distributions built on the basis of the Linux kernel) ranks second in popularity among OSs used on user desktops (first place belongs Microsoft Windows)

About

Apache Kafka is open-source stream processing platform It is a message-oriented middleware. named after Apache Software Foundation. Apache Kafka is developed by Apache Software Foundation and LinkedIn. Supported by cross-platform Operating Systems.

About

What is it?

Fragaria is an OS X Cocoa syntax colouring NSTextView implemented within a framework named MGSFragaria. It supports a wide range of programming languages and includes preference panel support. The MGSFragaria framework now properly supports both traditional reference counting memory management and garbage collection.

Where can I see it in use

You can see Fragaria used in the following projects and products:

• Appium Recorder : Appium is an open source, cross-platform test automation tool for native and hybrid mobile apps. (repo).
• cocoa-rest-client A native OS X cocoa application for testing HTTP endpoints.
• CocosBuilder. CocosBuilder is a free tool (released under MIT-licence) for rapidly developing games and apps. (repo)
• Cocoduino is an IDE for the Arduino platform written in native Cocoa.
• KosmicTask is a multi (20+) language scripting environment for OS X that features script editing, network sharing, remote execution, and file processing.
• nib2objc This utility converts NIB files (or XIB ones) into Objective-C code If you use Fragaria in your app and want it added to the list just let us know or edit the README.

  Features

  Most features are accessed via the framework preferences.

• Configurable syntax colouring
• Configurable font type, size and colour.
• Invisible character display
• Line numbering
• Brace matching and auto insertion
• Page guide
• Simple word auto complete
• Tab and indent control
• Line wrapping

About

Easy, yet powerful, GNU/Linux distribution

OpenMandriva Lx, based on Mandriva and Mandrake code, is an exciting free Desktop Operating System that aims to cater to and interest first-time and advanced users alike. It has the breadth and depth of an advanced system but is designed to be simple and straightforward in use. OpenMandriva Lx comes from a 100% community-driven association that believes in the values of free software & collaboration and whose founding values are development, equality, co-operation, openness, freedom, group achievement, independence, and solidarity. 

About

Based upon Puppy Linux 3.01 Operating System kernel 2.6.19.7

PUE is an Operating System that fills a niche for Users who use older computers and require a complete set of applications at their disposal. This project's starting date stretches back to 2009. This system is based on a JWM/ROX filer; that has been configured to provide the integrated ease of use that a Desktop Environment provides, while using minimal System resources. This minimalisations do not compromise form and function! PUE is designed to maximise system resources allowing even heavy apps to work on minimal hardware. It is the intention of the author that all applications work within the limit of 128mbs and 32mb gForce Video Card and able to operate from an 8gb USB flashdrive New release Apps will be incorporated if they conform to design parameters; however, if function compromises resources then it is not considered.

About

 

LoseThos, a free, 64-bit, multicore, PC operating system designed from scratch, not a Unix. No bloat. Boots in 2 seconds. Comes with games, a C compiler, tools, and lots of demos of the API! Test-drive or install it is a live CD.

About

JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.

About

OpenSOB is an UNIX*BSD Operating system based on FreeBSD 5.0-RELEASE. This version of the Operating system goes oriented to improve the impression of the end user when he uses an UNIX*BSD Operating system making some modifications to the Kernel and GUI.

About

Android OS for Windows PC systems

Remix OS is a free Android version made by Jide, the company behind this operating system. This OS comes with certain basic Android features adding some missing functions that are present for Mac and Windows users. You install it on a USB and boot directly from that. It’s compatible with Intel and AMD processors, so it runs on almost any machine, and unlike other solutions, it has a dedicated desktop user interface just like the operating system you’re already used to. That means that when you open an app, it doesn’t take up the whole screen like it would on an Android tablet; it opens in its own window like any other desktop program. This allows you to use Chrome alongside Word, or Google Maps, or YouTube, or just about any other Android app. Remix OS is totally free to download and use. This is an alternative to running an Android Emulator for Windows.

About

raw2vmdk is an OS independent Java utility that allows you to mount raw disk images, like images created by "dd", using VMware, VirtualBox or any other virtualization platform supporting the VMDK disk format.

About

Sensor node operating systems must support sensor transparency for providing easy application development and systematic sensor management. We suggest a sensor device manager that supports senssor transparency

About

scmRTOS is tiny Real-Time Preemptive Operating System intended for use with Single-Chip Microcontrollers. scmRTOS is capable to run on small uCs with as little amount of RAM as 512 bytes. The RTOS is written on C++ and supports various platforms.

About

Berryboot -- Boot menu / OS installer for ARM devices

Berryboot is a simple operating system installer and boot selection screen for ARM devices such as the Raspberry Pi and Cubieboard. It allows you to put multiple Linux distribution on a single SD card.

About

Linux for 64bit media & gaming ready PCs built from Fedora

Chapeau is a high-performance, cutting-edge operating system built from the Fedora GNU/Linux distribution with the Gnome desktop environment. Compared to Fedora Chapeau adopts an enhanced user experience and a more relaxed approach to software licences and is intended to be just as useful for advanced users as it is easy for those new to using a Linux system. There is built-in access to third-party software & sources repositories not included in Fedora such as RPMFusion, Steam, Adobe Flash, Dropbox & Oracle VirtualBox. Chapeau also includes system tools that makes your live DVD or USB disk a handy portable toolkit for repairing Linux and Windows installations as well as a general purpose desktop distro. Chapeau is available for 64bit x86 PCs.

About

humbly smart Operating System - Debian derivative

TeLOS is a new, universal Linux distribution, a carefully customized derivative of Debian bullseye / sid with KDE Plasma Desktop Environment featuring an unbiased selection of useful applications and services. You may find TeLOS Linux to be snappy, lightweight, ready for work or fun straight out of the box and easily configurable. This Operating System is freely distributed and honors free, open source software development. Nevertheless, some non-free proprietary packages are included to widely support common modern hardware. Google Chrome browser and TeamViewer contribute to making this unconventional distribution remote work and distance learning friendly. TeLOStore, our AppStore application, makes installing and uninstalling apps in TeLOS an easy, fast and safe game. TeLOS is suitable both for Linux newcomers and for experienced users.

About

Whonix is an Anonymous Operating System.

Whonix is an operating system focused on anonymity, privacy and security. It's based on the Tor anonymity network, Debian GNU/Linux and security by isolation. DNS leaks are impossible, and not even malware with root privileges can find out the user's real IP. Whonix consists of two parts: One solely runs Tor and acts as a gateway, which we call Whonix-Gateway. The other, which we call Whonix-Workstation, is on a completely isolated network. Only connections through Tor are possible. Whonix is produced independently of, and carries no guarantee from, The Tor Project.