Microkernel

The Open Group is a vendor- and technology-neutral consortium, whose vision of Boundaryless Information Flow? will enable access to integrated information within and between enterprises based on open standards and global interoperability.

PETROSR is a new 32-bit operating system for the PC platform released by Trumpet Software International Pty Ltd., based in Hobart, Tasmania. PETROSR has been created from first principles, allowing it to focus on a small size and a modular approach.

BugOS is a new operating system. It has a kernel, device drivers, a file system, and an internet module. The main concept is that every process has an own computer with an own console

Topsy is a small (~20k machine code) multi-threaded microkernel. It is written in ANSI C and protects kernel threads from user programs. It supports memory management, thread/process control and an IO and driver subsystem. Communication and sychronization is implemented with messages

Support for Multimedia in Operating systems, Lancaster University: microkernel OS with facilities to support distributed realtime and multimedia applications and ODP-based multimedia distributed application platforms.

MorphOS is a light fully featured operating system that is non-Unix based and Amiga compatible.

Cosy is a new operating system specifically designed for scalability of highly parallel multicomputer systems. It rests on a small microkernel responsible for process management and interprocess communication. All other OS services (e.g. file system, window system, name service, ..) are implemented as processes outside the kernel. In Cosy, processes and address spaces are orthogonal concepts which makes a Cosy process similar to a thread in other operating systems.