Open Source Pascal Operating System Kernels

Perix is a 16/32/64-Bit protected mode kernel, bootable and capable of running with or without an operating system. It is written in Turbo Pascal 7.0 for DOS, Delphi 7.0, Pascal Pro, Virtual Pascal v2.1, Delphi XE2 64-Bit, TASM, TASM32 and JWASM. The latest version, 0.01I, supports multi-processor. Added Open Watcom C++ and Borland C++ examples.

Here you can find both an Oberon V4 system for Linux (x86) and a collection of Oberon V4 sources for various other platforms. Oberon V4 was implemented at ETH Zurich for several platforms. Binaries can be found on their server[1] and on the one of the University of Linz[2] where Mössenböck's group did further development after he left ETH and the Group at ETH concentrated on System 3. More Information can be found in the wiki https://sourceforge.net/p/oberon/wiki/Home/ of this Project and on Wikipedia https://en.wikipedia.org/wiki/Oberon_(operating_system). In 2013 they were moved here for easy access and, in case of interest, collaboration on further development. The Oberon mailing list[3] is an established channel for its discussion and followed also by the administrators of this SF project. [1] ftp://ftp.ethoberon.ethz.ch/Oberon/OberonV4/ [2] ftp://oberon.ssw.uni-linz.ac.at/pub/Oberon/ [3] https://lists.inf.ethz.ch/mailman/listinfo/oberon

This is my little "FreeDOS Floppy Disk Distribution". It is intended for computers without a CD drive or not able to boot from CD. It will work down to 8086. See xxxxxxxxx for details. Right now only the LIVE image is available. Installable coming soon.

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.

Perix is a MS-DOS compatible program, capable of running without an underlining OS. It is written in Turbo Pascal and Assembly. All parts of system are distributed under terms of the GNU General Public License v2.

DelphineOS is a "unix-like" OS designed for i386 processors and higher. It uses 32bits, protected mode, multitasking, virtual memory... The source code is written in PASCAL. If you want to HELP us, send e-mail to g_cavelier@yahoo.fr

Plato is an open-source operating system designed to run binaries from almost any operating system. Plato is also desinged with the user in mind. It will have an enjoyable, easy to understand and use interface, and everything will be customizable.

Achelous is attempt to clone Mac OS X for the Intel X86 Chipset. There are currently two teams working on the project: the Kernel team and the GUI team.

EXIRION/OS is an operating system for embedded computer systems. These operating systems are designed to be compact, efficient at resource usage, and reliable, forsaking many functions that non-embedded computer operating systems provide, and which may not be used by the specialized applications they run. They are frequently also referred to as real-time operating systems, and the term RTOS is often used as a synonym for embedded operating system. EXIRION/OS project, a Open operating system for computers that can be used in specific operations that require execute a task at a time, EXIRION/OS operating system is a monolithic and mono layered task, which can be used to control complex electronic equipment without the use of instruments PLC, offering a wide range of electronic and industrial applications, EXIRION/OS is also an educational tool, it is an open source operating system to use it as an example of building operating systems in universities and technical colleges.

Fusion OS is a Open Source Operating System, mainly licensed under the MPL 1.1. Parts of it are licensed upder the GNU GPL or other open source licenses. Fusion OS is based on the ReactOS project, and we contribute any bugs found in ReactOS back to them

MEDDAC is the seeding point for designing a new approach to Operating System design itself. It is an Open Source project with roots in mainframe design and development the author began in 1979. Monitor Editor Disassembler Decompiler Assembler Compiler

NuzulOS is my operating system whis is develop in pascal environtment.

Pascal Operating System, That will translate Freedos to Pascal --OSPine written in Turbo Pascal and NASM. I think now I will make all that useful before I release. Thank for Feedback (^_^)

This project is an effort to develop open source software for all old platforms, like MSX, Commodore, AMIGA, Atari, ..... and collect technical information about old platforms, keeping the "old skool" flame alive.

SD is a new operating system developed in the Pascal language (FreePascal, FPC/FPK) and NASM for IA-32. It's main purpose is to provide a fast and simple 32-bit multitasking OS. The OS must have several DOS, Windows and Linux features and maybe Win32 emu.

What can compete with hierarchical file structures and class/inheritance schemes if not networking organic type/form languages, with its own graphical and DOS compatible OS? This initiative always moves fast ahead, and in an enlightened way... GNU GPL

Topologilinux is a complete slackwarebased linuxdistribution to be run on top of any Dos/win partition without partitioning your hard disk. Very easy to install to your favorite Windows system like Windows Vista or Windows XP or Windows 2000.

a new kind of OS. just an experimental and limited system to test a new concept based of user centric view, but nothing is done because it's "normal" in all OSes , everything is thinked again. The aim is to manage information (represented as XML) wit

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. Project is dead since 2006-03-19.

open source analogue of IBM OS/2 operating system