System - Operating System Kernels
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The Linux kernel is a free and open-source, monolithic, modular, multitasking, Unix-like operating system kernel. It was conceived and created in 1991 by Linus Torvalds for his i386-based PC, and it was soon adopted as the kernel for the GNU operating system, which was created as a free replacement for UNIX. Since then, it has spawned a plethora of operating system distributions, commonly also called Linux.
Linux is deployed on a wide variety of computing systems, such as embedded devices, mobile devices (including its use in the Android operating system), personal computers, servers, mainframes, and supercomputers. It can be tailored for specific architectures and for several usage scenarios using a family of simple commands (that is, without the need of manually editing its source code before compilation); privileged users can also fine-tune kernel parameters at runtime. Most of the Linux kernel code is written using the GNU extensions of GCC to the standard C programming language and with the use of architecture-specific instructions (ISA). This produces a highly optimized executable (vmlinux) with respect to utilization of memory space and task execution times.
Architecture and features
Processes and threads
Scheduling and preemption
Concurrency and synchronization
Source code management
Submitting code to the kernel
Programming language and coding style
Development community conflicts
Estimated cost to redevelop
Maintenance and long-term support
Relation with Linux distributions
GPLv2 licensing terms
Loadable kernel modules
Firmware binary blobs
Real-time, modular, microkernel-based operating system under development for i386. The first goal is to support 32-bit DOS protected mode applications made with DJGPP as well as native applications.
TORO is demonstrating an innovative operating system by integrating at the same ring level both kernel and the user application server. The threads of the user application server are distributed evenly on all CPUs and running independently in parallel. The memory model chosen is NUMA without pagination. During the initialization, the memory is divided proportionally for each processor installed on the system. When a thread needs memory, the memory allocator returns a free block of memory depending on which CPU the thread is running. In the same way, TORO can dedicate resources to specific processor, i.e. a FileSystem. This only CPU then can access to this instance of FileSystem. The scheduler is based on the cooperative threading model, therefore due to this design, TORO can migrate threads between CPUs and send messages between threads without using any lock instruction. TORO is well suited for integrated system to run at high pace application servers like web servers.
XanMod is a general-purpose Linux kernel distribution with custom settings and new features. Built to provide a stable, responsive and smooth desktop experience. The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts. Supports all recent 64-bit versions of Debian and Ubuntu-based systems.
An android custom ROM based on AOSP,which provides a stock experience
AOSP Extended is an AOSP based rom which provides stock UI/UX with various customisations features along with the Substratum theme engine. The project has been made by cherry-picking various commits from various other projects. Being based on AOSP it provides a smooth and lag-free experience out of the box. We will constantly try to add more features and make it even better in future updates. A ROM by a user, for a user. #StayAOSP #ExtendYourDevice #BeExtended
Android Custom Rom
A AOSP based project that is set to show its power in Battery , Performance and Customization without compromising security.
FreeDOS is a free DOS-compatible operating system.
FreeDOS is a complete, free, DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or develop embedded systems. Any program that works on MS-DOS should also run on FreeDOS. It doesn’t cost anything to download and use FreeDOS. You can also share FreeDOS for others to enjoy! And you can view and edit our source code, because all FreeDOS programs are distributed under the GNU General Public License or a similar open source software license.
Beautiful, minimal and secure arch-based distro
Peux OS (named after Penguin TUX) is an arch-based distro. The aim is to follow the archlinux philosophy of keeping it simple. Hence, taking the minimalist approach. Default FS is BTRFS Default Shell is FISH Timeshift-autosnap feature enabled by default Buttermanager included as a backup snapshot feature Even though autologin is enabled for liveuser, but just in case that fails, use the below credentials: user: liveuser pass: root You can now download torrents from the partner site: For fast direct-link downloads use: Official Peux OS site is : Focus is on Gnome, XFCE, LXQT & KDE. Please check Discussion > Release Notes for more details on any particular release. Also check the general discussions where I post issues and news related to ISO. Use dd/rufus-dd/multiwriter to make USB bootable.
A Custom Arch-Based Distro with KDE Plasma
** Introduction ** This is XeroLinux - an Arch-based Distro with KDE Plasma Desktop. It started as a personal project for myself, that has quickly grown to become something much bigger. So if you share my passion for building Linux check it out and see what can be done with the right tools. It's a custom Distro suited for people who like eye-candy. It also uses the select what you need during install in Calamares method, pulling everything from the net, that way you always have latest packages out the box. Kindly note that everything in XeroLinux is by choice. Choices are what makes Linux great.I hope yours agree with mine.. Feel free to join us on Discord for any troubleshooting and updates.
A custom fork of the Linux kernel.
This kernel is for x86_64 only. If you want to reconfigure it for x86, feel free to, but I'm not going to as I only have x86_64 hardware. This will never leave BETA status as it's usually total chaos about how releases are handled, features may appear and disappear faster than you can blink. The only thing I can promise about the kernels I upload is that if I upload it, it built, installed, and booted on my personal system without a problem. I use LUKS and LVM for everything but /boot, so I know they work when I upload the kernel. Anyway, I'll admit it, I'm a security freak, if I even think there MIGHT be a security hole, I don't rest until I've fixed it and verified it's been properly fixed, I also want my laptop to be as fast as possible, so in the end, you'll be getting a secure kernel that's about as fast as Linux can go on common home x86_64 PC hardware. It's certainly a noticeable difference to me, and that's what I strive for, I want everything my PC has to offer.
A simple open source OS with basic functions, libraries and drivers. Compatible with x86 arquitecture, 32bits(recomended). You can easily compile it, any time, by running the compiling script included in the archive. Meant for beginner or advanced programmers on C or ASM, Nanux can help you understand the functions of the operating system, or create one by yourself. Minimal requirements: - x86 Arquitecture, PC - CPU Intel Pentium I, 200 MHz or newer, (maybe AMD, but is not recommended) - 4 MiB of RAM - CD/DVD ROM, USB or Floppy to run the ISO Image - keyboard.
A new operating system for mobile, IOT, servers and desktops
NuDawn started as an OS/2 emulation for WINE and now has new direction to be an open source operating system supporting legacy hardware that the OEM no longer supports. NuDawn is a green OS, hence keeping your electronics out of the landfill.
Our mission is to explore and develop new operating system concepts; to redefine the architecture while using assembly language for most of the underlying architecture.
This is a collection of libraries contained : Shared memory allocation, configuration script processor, containers (trees, lists, queues, stacks), file system abstraction, network library, timers/threads, Image library, Display libraries, and more.
Tarbox OS is a minimalistic 16 bit OS being developed in x86 Assembly.
Tarbox OS is a minimalistic 16 bit operating sytem being developed by Brandan Tarbox as a school project, for the x86 processor architecture. It will be capable of manipulating files, running BASIC programs and several other simple OS functionalities.
The Embedded Linux Workshop is an open source project put together for the book "Embedded Linux" by John Lombardo. The workshop makes it easy to build embedded Linux applications quickly and easily.
Tonix is an x86 PC operating system totally out of personal interest. I'm expecting the day my Tonix can play music, Internet surfing, or even playing movies :P And I'm sure I can see this day coming :)
Umbrella is a security mechanism that implements a combination of Process-Based Access Control (PBAC) and authentication of Digital Signed Binaries (DSB). Umbrella is designed for Linux-based consumer electronic devices.
View OS is a user configurable, modular process virtual machine, or system call hypervisor. For each process the user is able to define a "view of the world" in terms of file system, networking, devices, permissions, users, time and so on.
WISDOM is a 32-bit operating system with a primitive shell implemented. It is copyrighted under GNU/GPL license. WISDOM is also a research into the field of design of operating system. Operating System Development has been in the shadow in recent times.
Xway is intended to improve the network performance and CPU utilization in Server Virtualizatioin environment, XEN, through bypassing the TCP/IP stack and eliminating unnecessary data copy in transmission between two VMs on the same physical machine.
Small real time operating system for AVR and ARM microcontrollers
AvRtos is a small, preemtive, priority based real time operating system for Atmel AVR and ARM microcontrollers. It was written in C. AvRtos provides message queues and semaphores for task synchronization. It uses a static memory allocation scheme. AvRtos is nearly the smallest RTOS out there. Even pico]OS is much bigger. AvRtos can be compiled using gcc compiler. There is a AvrStudio 4 and Eclipse project file to get the example code working very quickly.
uSmartx is a non-preemptive, multitasking, priority based kernel for use in embedded designs. Its major features are task and time control over system resources, inter task communication and simple memory management.
YuGiOhJCJOS is the YuGiOhJCJ Operating System. This project contains a set of scripts that allow you to build the operating system.
Just another view on how should OS be designed. Streams based architecture, micro kernel, dynamic loading/removing drivers without OS rebooting, ...
This program was written to test (and protect) the vulnerability of the Windows 7 and Vista Operating System ( bsod / SMB2) . The code should not be used to damage machines with Windows System. The main objective of the project, is notify about problem.
luxur es un kernel creado en C una vez compilado con gcc se puede iniciar con grub o puede probar la .iso en una maquina virtual.
memreport analyze memory patterns at a specific time on embedded device like mobile phone, digital tv, digital camera. memreport is written by C language for usability. Embedded developers can utilize this software easily to reduce memory-foot-print.
Advanced Real-Time Linux (ART-Linux) is a hard real-time kernel developed with robotics applications in mind. Real-Time is accessible from user level and does not require special device drivers. 10 micro-second periodic execution is possible on a PII
nucleOS will be an 32-bit Operating System (perhaps we'll make it 64-bit later), written in Pascal and Assembler. It will be based on the i386 architecture and will support multi-tasking later on.
PERSEUS is an open-source framework for trustworthy computing that aims at establishing an open security architecture by efficiently combining existing applications, modern operating system solutions, and security technology.
A new wave of Linux Distro, simple, and small in size. From Slax, but it uses XFCE as the default window manager. Only boots 35 Seconds (On an Intel Pentium 3 500 MHz+!). simpleLinux-minimal include basic needs which is only 150 MB of size.
In the field of Operating System Kernels learning from a live instructor-led and hand-on training courses would make a big difference as compared with watching a video learning materials. Participants must maintain focus and interact with the trainer for questions and concerns. In Qwikcourse, trainers and participants uses DaDesktop , a cloud desktop environment designed for instructors and students who wish to carry out interactive, hands-on training from distant physical locations.
For now, there are tremendous work opportunities for various IT fields. Most of the courses in Operating System Kernels is a great source of IT learning with hands-on training and experience which could be a great contribution to your portfolio.
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