Information on Open Source from the Object-Oriented category

ACM Crossroads: Operating Freely - Description of the 3 major

aeon - Microkernel manages hardware

Apache Web-Serving with Mac OS X - Series of articles by Kevin Hemenway (aka Morbus Iff) on getting Apache up and running on OS X.

Apostle - Free microkernel operating system for i386 architecture

Apple - Downloads - UNIX & Open Source - The UNIX & Open Source category of Mac OS X Downloads.

Blue-Skies (for PowerMac) - FTP site for the University of Michigan's weather tracking software.

California Digital - A company that still sells CP/M.

CarbonKernel - Open Source RTOS simulator based on event-driven simulation methods with concurrent target debugging abilities

Castor - Open source data binding framework for Java with support for XML

CGS Computer Graphic Systems - CGS (ORIS) is the worldwide leader in digital workflow and productivity software for the printing and graphic arts industry. The ORIS software suite consists of: Color Tuner

CMOSexod.com - For advanced hobbyists: share free microprocessor and DSP IP cores written in Verilog or VHDL.

CocoaMySQL - A MySQL GUI for Mac OS X.

COTSE-Mini UNIX Distributions - Links to 2 dozen mini Unix distributions: mostly Linux

CuteFlow - Document Circulation System - Web-based document circulation tool (Open Source). Users are able to define "documents" which are sent step by step to every user in a list.

DeleteCTX - A simple droplet for removing HFS type and creator codes. Doing so forces Mac OS X to interpret a file's type by looking at it's file extension.

Delitalk - Delicate + Smalltalk; true OO OS

demingOS - Component-based multiuser OS; message-based programming

DropScript - An application for Mac OS X which lets you create new applications from any BSD program which takes files as command line arguments. Typically

E-Risc - Project to design and implement scaleable RISC microprocessor for embedded applications. All architecture and source code to be released under GNU General Public License

Emacs 21 for Mac OS 8/9 - A very expansive text editor that has lots of powerful features.

Enhydra Shark - Open Source workflow engine and client applications (admin and worklist handler) based on WfMC and OMG specification.

Extensible Operating Systems - Short

FinkCommander - A graphical user interface for Fink. (only for Jaguar

FreeRTOS - Portable

Gemini Nucleus - Open source project to make a production quality micro kernel based on the latest findings in OS research.

Ginko - Objectpark's attempt at an MUA for 0S X.

GO! - Component-based OS

GO! SourceForge - For developers; want those who like ASM

GRASS GIS Complete on Mac OS X - Complete installation package for the GRASS GIS (Geographic Resources Analysis Support System) for Mac OS X. Requires Mac OS X 10.2.8 and later with last security update and X11.

interBasis (IB 2.x) - SGML/XML-savy structured fulltext engine and multi-protocol information management system. (BSn)

iTunes Publisher 4 - Exports playlists from iTunes into HTML

jBpm - Open Source workflow management system based on J2EE. It runs on a JBoss application server and is available under the Lesser General Public License (LGPL). Contains project description

JTMOS - Operating system aimed at OS developers and users who are very advanced at using computers generally; microkernel

Katix RTOS - Free

LAMP - An ambitious project to provide a POSIX environment on Mac OS.

LBT - Initial announcement of the GPLed LEON SPARC architecture.

LineBreak - A simple utility for Mac OS X that converts line breaks in text documents. It can convert to Mac

LinksOS - To be fast

Linux and BSD - Succinct

Linux Journal: Open Source Software for Real-Time Solutions - Compares 2 open source OSs for embedded uses: RTLinux

List of Open Source Workflow Projects - Maintained by Dutch consultants Topicus. They list version

Lore - Lore is a database management system (DBMS) for XML. The Lore executables are available for public use.

Mac GNU Privacy Guard - A project to bring GnuPG to Mac OS X with a nice front end and inter application services.

Mac OS Open Source Software Directory - A resource to the Mac user and developer communities providing links to and information about open source software projects developed for the MacOS.

Mac OS X Man Pages - Apple's collection of man pages available from the command line

Mac Vim - A powerful text editing tool that sticks to its task: editing text. Versions for OS X and Classic.

MacDevCenter - Mac development tutorials

MacGimp - Port of the open source Gimp graphic software to Mac OS X (requires X Windows). Includes news

Marc Liyanage - Mac OS X Packages - Easy to install packages for OS X; PHP

MenuetOS - Graphical realtime OS written in all 32-bit assembly

Mika OS - Low-level coded

MMIX Page of Munich Professional School - Mixed German-English site at Munich University of Applied Sciences. MMIX extensions: MMIXAL LaTeX output

MMIX: a RISC computer for the third millennium - Donald E. Knuth's new 64-bit processor for the new volumes of his landmark series: 'The Art of Computer Programming'. But might MMIX become more than only a book example.

MMIXware: A RISC Computer for the Third Millennium - Knuth's new MMIX book

Moo32 - Early development microkernel.

NewOS - Loosely based on concepts in BeOS

Nilsen Elektronikk AS - Makes 2 very small

O'Reilly Network: Mac Open Source Software Directory - All submissions go through an editorial review before being posted to the site.

O3ONE - Object-oriented OS uses best parts of VMS

Objex - Object-oriented

ONLamp - O'Reilly's articles on LAMP: The Open Source Web Platform. Roughly defined as (but not limited to) MySQL used in conjunction with Linux

Open Business Engine - Open source workflow engine written in Java

Open Source Unix and Related Software Projects - Small page of logos and links to resources

OpenFlow Introduction - Open source workflow engine which models activity-based workflow. Most of the information and documentation of OpenFlow is in Italian

OpenOffice - The Open Source Office Project for OS X (via X11).

OpenWFE - Java-based open source workflow engine.

Pashua - Pashua is a developer's utility for creating aqua GUIs for Perl

picoJava Core - A core is the central component of a microprocessor or controller chip. Chips using picoJava core are ideally suited for consumer electronic products running Java applications. By Sun Microsytems

PIOS: Pleasant Interactive Operating System - Free Unix clone developed by PIE Software Inc.

POV-Ray - The Persistence of Vision Raytracer.

Press: Sun Extends Community Source Licensing to Chip Architectures - Sun Microsystems announces: for research uses

Programmers Operating SYStem: POSYS - To be simple 32-bit multitasking microkernel using all security features of x86 processors

PublicOS - Plugin-based architecture: if a feature is unneeded

ReactOS - Opensource effort to develop a quality operating system compatible with Windows NT applications and drivers.

Red Bird Island - Free software for the Mac of various genres.

RET & COM Research - Makes RadiOS

Roadrunner: Cornfed Systems - Makes Roadrunner/pk open source (GPL)

ROME - Lightweight

RTX: embeddable Real Time Executive - Ideal for tiny

sMultiTA - World's smallest

Sourcebank - GUI downloads for developers.

SPARC International - Member funded organization

Spoon Microkernel - Hobby and education OS

Tamino - A native XML database that stores information without converting it into other data structures; regarded not only as a database but an XML platform for electronic business. Supported by third-party XML tools and its own middleware.

The Fink Project - Unix software ported to Mac OS X

The Freedom CPU - Mainly dedicated to purely SIMD superpipelined 64-bit RISC CPU

Thix - Unix kernel written in 1994-95; almost full implementation of POSIX.1 standard

TigerLaunch - An easy-to-use and easy-to-configure application launcher for OS X. Useful for those who miss the old apple menu.

Trinary - Modern object-orientated microkernel

WDI - Open source business integration engine (BIE)

WfMOpen workflow engine - WfMOpen is a lightweight J2EE based workflow engine with OMG like API

wftk: Open-Source Workflow Toolkit - The wftk is a general-purpose open-source workflow engine and toolkit

Xindice - DBMS written in Java to optimize the storage