AI Lab Zurich: Links: Embedded and Real-Time Systems  www.ifi.uzh.ch/groups/ailab/links/embedded.html Medium-size link page; several categories.

C Kernel  home.kpn.nl/p_vd_vlugt Realtime preemptive kernel coded fully in C, so is highly portable to different hardware platforms and easily embeddable; Descriptions, full source code, examples, C Style Guide and programming Guidelines. [Free]

CMX Company  www.cmx.com Makes multitasking RTOS products: CMX-RTX (full RTOS), CMX-TINY+ (small RTOS), CMX-TCP/IP, CMXBug, CMXTracker. These support most 8/16/32/64-bit embedded controllers, processors, DSPs, over 30 compiler vendors.

Enea  www.enea.com Develops and distributes the OSE family of real-time operating systems and embedded development tools for high reliability telecom/datacom, medical, automotive and safety critical applications.

Fusion RTOS  www.dspos.com/DSPOSWeb/rtos/fusion_RTOS.htm A fast (190 cycle context switch), small (1-1.5 K), designed and optimized for next generation DSP systems; and Fusion Net (TCP/IP Stack), Fusion Web (services); all support priority based, realtime, preemptive, multitasking. By DSPOS, Inc.

JMI Software Systems, Inc.  www.jmi.com Makes C Executive and PSX multitasking, ROMable kernels for embedded systems. C Ex runs on 8/16/32 bit CISC CPUs, many RISC CPUs, DSPs, over 20 so far: fast context switch, compact. Options: DOS file system, TCP/IP, SNMP. PSX is medium-size kernel, between small basic kernels and full Unix; optional subset of POSIX.1 system calls.

Kadak Products Ltd.  www.kadak.com Makes AMX RTOS, KwikNet TCP/IP stack and Web server, KwikLook fault finder, KwikPeg GUI with graphics library. A high quality realtime software foundation for embedded products.

Micro Digital, Inc.  www.smxrtos.com Makes SMX: no-royalty, modular, preemptive multitasking, small fast, many featured RTOS for embedded systems. Portable to all 32-bit processors, now on ARM, ColdFire, PowerPC, SH3/4, x86. Unlike generic C kernels, it exploits strengths of x86 to make it easier to program.

NewMonics, Inc.  www.newmonics.com Leading supplier of Java-compliant virtual machines for embedded and real-time systems.

NexGen Software  www.nexgen-software.fr French software house that designs and markets an Open Embedded TCP/IP suite designed for demanding embedded applications: TCP, HTTP, PPP, VoIP.

On Time Informatik GmbH  www.on-time.com Makes RTOS-32, and realtime multitasking development tools, for x86-based embedded systems; no royalty, full source code available on all products. Supports Borland, Microsoft, Watcom C/C++ compilers; DOS, Win32 compatible API gives easy ports of extant programs.

Pumpkin, Inc.  www.pumpkininc.com Makes Salvo RTOS, designed expressly for very low cost embedded systems with highly limited ROM and RAM (normal uses: 1-2K ROM, 50-100 bytes RAM) and/or no software stack. Priority-based, cooperative multitasking, event services, real-time delays.

Quadros Systems, Inc.  www.quadros.com Makes RTXC 3.2 and RTXC Quadros, for convergent processing in embedded uses. Seamless use with microprocessors, DSPs. Configurations: single stack, dual stack, multi stack; multicore, multiprocessing.

REACT  www.sgi.com/products/software/react Hard realtime extension, under 30µs interrupt response times; for Linux, and standard with SGI IRIX Unix OS; Silicon Graphics, Inc. Open source.

Realtime Operating System  en.wikipedia.org/wiki/Real-time_operating_system Growing article, with links to many related topics. Wikipedia.

SCIOPTA RTOS  www.sciopta.com Assembly coded high performance kernels, internet protocols (TCP/IP), filesystem, support for distributed systems, DRUID system level debugger. Supports most 32-bit processors; COMPACT is for 8/16-bit controllers. By Litronic AG.

Segger Microcontroller Systeme GmbH  www.segger.com/embos.html Makes, sells, supports embOS RTOS for embedded uses, multitasking, minimum cost, no royalty, fully interruptible, efficient for time critical uses, RAM and ROM needs so small it fits 1-chip uses, leaving more room for user programs.

SW Datentechnik GmbH  www.swd.de Realtime software, hardware, services: QNX, SQL, multiplatform RAD, portable UNIX-Windows, networking, RAID, multiport.

TenAsys Corp.  www.tenasys.com Specializes in real-time virtual machine technology that combines the Windows OS and a hard real-time OS on a single x86 PC compatible computer.

Tics Realtime  www.concentric.net/~Tics Modern message-based architecture. Introduced June 1992, many uses: cell phones, small handheld devices, large factory automation systems, Space Shuttle.

TurboTask RTOS  www.softools.com/turbotask.htm For Z80 and Z180 compatible processors; full-featured, tiny, size ranges from 1k to 2.5k, set by features used; written in pure Assembly, making it maximally small, fast; no royalty; low cost licenses for binary and full source code. By Softools, Inc.

VenturCom, Inc.  www.vci.com Enabling Windows NT and Windows CE for embedded and real-time applications

VITA  www.vita.com The VMEbus International Trade Association

Wind River Systems, Inc.  www.windriver.com Makes pSOSystem, OSEKWorks, Virtuoso, VxWorks RTOSs (and BSD/OS). Merged with Integrated Systems, Inc., world leader in providing full embedded system software and design automation solutions: software, hardware, custom design, world-class support.

Xpolyplus  www.xpolyplus.com Realtime OS and development system for programs for industrial automation, telecontrol, machine automation. It is C-Scada: does all functions of SCADA, plus control (more so with neXor I/O hardware); by XPLAB. English, Italian.