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free DOS on PCs

Visopsys is an alternative operating system for PC compatible computers.

Visual Operating System | Home

http://visopsys.org/index.php
MikeOS is an operating system for x86 PCs, written in assembly language.

MikeOS - simple x86 assembly language operating system

http://mikeos.berlios.de/
Pavel "Sonic" Fedin is still working on the Windows Hosted version of AROS and, in the course of this work, is also trying to solve several problems in the way AROS talks to the hardware, in order to abstract it; this led to his modifying components that require an abstraction layer in order to work in hosted AROS versions, such as file systems and hardware; this includes a packet handling method for SFS. Also, Pavel, together with Jens Langner, is trying to cross-compile the most up-to-date versions of the mcc.BetterString and mcc.TextEditor MUI classes so that they will be taken straight from the mainstream source instead of being included in the AROS source tree. Matthias "Mazze" Rustler has released an alpha version of the Ignition spreadsheet application. At the moment data cannot be saved but it is still a good occasion to have a look at this application, underestimated on AmigaOS but quite powerful and well realised. http://aros.sourceforge.net/

AROS Research Operating System

Pinguy OS

http://pinguy-os.sourceforge.net/ Ubuntu is a great OS and undoubtedly the most popular and easiest Linux based Distro to use but even with its default setup and chosen programs it's still lacking functionality and ease of use for most new users. So what I decided to do was build a Distro that looks good, could do everything most user would ever want to do and that was very simple to use. I started out by listening to what my friends and family wanted to use their PC for and found the most user friendly programs for the task they wanted to do. After a while I got a good idea what most people use their PC for and what programs were the easiest to use. Like using Shotwell for easily uploading images to Facebook, gtkpod for putting music, photos and video on a ipod/iphone and Arista for converting the video to a iPod friendly format.

The MINIX 3 Operating System

MINIX 3 is a free, open-source, operating system designed to be highly reliable, flexible, and secure. It is based on a tiny microkernel running in kernel mode with the rest of the operating system running as a collection of isolated, protected, processes in user mode. http://www.minix3.org/
https://www.haiku-os.org/ Late as always the registration for the 25th BeGeistert event is now open at last. Head over to www.begeistert.org if you want to take part in it.

Home | Haiku Project

FreeDOS is a free DOS-compatible operating system for IBM-PC compatible systems. FreeDOS is made of up many different, separate programs that act as "packages" to the overall FreeDOS Project. We welcome new users to FreeDOS. You can contribute to the FreeDOS Project by downloading our latest release and telling us what you think. We have a bug tracking system that helps you report problems and submit requests, and otherwise tell us how to improve FreeDOS.

FreeDOS | The FreeDOS Project

http://www.freedos.org/

Frontpage - ReactOS Website

New to ReactOS? | Become a developer! | Register here! ReactOS ® is a free, modern operating system based on the design of Windows® XP/2003. http://www.reactos.org/en/index.html
User comments on the Demo CD : "You could add more GNU applications and freeware, but NOT to much, we do need only quality software no more, no less. I am very supprised by its speed, response and also all of my hardware is supported, it's a HP nx9000 ..." » show all

eComStation :: an OEM Upgrade to IBM OS/2. Right for today's PC hardware

http://www.ecomstation.com/
http://www.osfree.org/wiki/doku.php

en:start - osFree

We're now at the alpha stage, which means that the current version is not feature-complete nor stable and not recommended for everyday usage.