This section has information on only RealTime Operating Systems (RTOSs), and closely related material. Realtime systems are not the same as embedded systems. Realtime OSs can be used in general purpose computers, and in embedded types. Some embedded OSs are not realtime, and cannot serve some uses. Why segregate RTOSs so fully? Three clear reasons exist: 1) The functional divide between RTOSs and non-RTOSs is large, which profoundly effects design: all OSs must provide logically correct-precise results, but RTOSs must go beyond this and give temporal (time) correctness. RTOSs are the only logical and safe choice for time-critical uses. 2) More RTOSs than non-RTOSs (fewer non-RTOSs than RTOSs) are in use, in this solar system at least. Realtime Operating Systems Software Computers.
- Real-time operating system An operating system intended to serve real-time applications that process data as it comes in...
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- Open Source Erlang www
By Ericsson Computer Science Laboratory, Source Erlang, soft realtime, declarative, functional language for concurrent, distributed systems. Compiles to BSD, Linux, Solaris, VxWorks, Windows. Descriptions, documents, links, projects: Ericsson, user. [Open Source, Erlang Public License]
- Growing Realtime Operating System www
Growing article, Operating System, with links to many related topics. Wikipedia. Realtime Operating System.
- Modern Tics Realtime www
Modern message-based architecture. Realtime. Introduced June 1992, many uses: cell phones, small handheld devices, large factory automation systems, Space Shuttle. Tics Realtime.
- Makes Micro Digital, Inc. www
Makes SMX: no-royalty, Digital, Inc., 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. Micro Digital, Inc..
- Specializes TenAsys Corp. www
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. TenAsys Corp..
- Realtime SW Datentechnik GmbH www
Realtime software, Datentechnik GmbH, hardware, services: QNX, SQL, multiplatform RAD, portable UNIX-Windows, networking, RAID, multiport. SW Datentechnik GmbH.
- Realtime C Kernel www
Realtime preemptive kernel coded fully in C, Kernel, so is highly portable to different hardware platforms and easily embeddable; Descriptions, full source code, examples, C Style Guide and programming Guidelines. [Free] C Kernel.
- For TurboTask RTOS www
For Z80 and Z180 compatible processors; full-featured, RTOS, 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. TurboTask RTOS.
- A Fusion RTOS www
A fast (190 cycle context switch), RTOS, 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. Fusion RTOS.
- Makes JMI Software Systems, Inc. www
Makes C Executive and PSX multitasking, Software Systems, Inc., 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. JMI Software Systems, Inc..
- Makes Quadros Systems, Inc. www
Makes RTXC 3. Systems, Inc..2 and RTXC Quadros, for convergent processing in embedded uses. Seamless use with microprocessors, DSPs. Configurations: single stack, dual stack, multi stack; multicore, multiprocessing. Quadros Systems, Inc..
- The VITA www
The VMEbus International Trade Association VITA.
- Develops Enea www
Develops and distributes the OSE family of real-time operating systems and embedded development tools for high reliability telecom/datacom, Enea, medical, automotive and safety critical applications. Enea.
- Makes CMX Company www
Makes multitasking RTOS products: CMX-RTX (full RTOS), Company, 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. CMX Company.
- Makes, Segger Microcontroller Systeme GmbH www
Makes, Microcontroller Systeme GmbH, 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. Segger Microcontroller Systeme GmbH.
- Realtime Xpolyplus www
Realtime OS and development system for programs for industrial automation, Xpolyplus, 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. Xpolyplus.
- Makes Pumpkin, Inc. www
Makes Salvo RTOS, Inc., 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. Pumpkin, Inc..
- Makes Wind River Systems, Inc. www
Makes pSOSystem, River Systems, Inc., OSEKWorks, Virtuoso, VxWorks RTOSs (and BSD/OS). Providing full embedded system software and design automation solutions: software, hardware, custom design, and support. Wind River Systems, Inc..
- Assembly SCIOPTA RTOS www
Assembly coded high performance kernels, RTOS, 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. SCIOPTA RTOS.
- Makes Kadak Products Ltd. www
Makes AMX RTOS, Products Ltd., KwikNet TCP/IP stack and Web server, KwikLook fault finder, KwikPeg GUI with graphics library. A high quality realtime software foundation for embedded products. Kadak Products Ltd..
- Makes On Time Informatik GmbH www
Makes RTOS-32, Time Informatik GmbH, 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. On Time Informatik GmbH.
- Enabling VenturCom, Inc. www
Enabling Windows NT and Windows CE for embedded and real-time applications VenturCom, Inc..
- Growing ChorusOS www
Growing article, ChorusOS, with links to many related topics. Wikipedia. ChorusOS.
- Makes, On Time Informatik GmbH www
Makes, Time Informatik GmbH, sells, supports RTKernel, realtime multitasking system for DOS; compact (about 16k code, 6k data); gives programmers the basic tools needed to develop efficient realtime software. No royalty. On Time Informatik GmbH.
- Growing Multiuser DOS www
Growing article, DOS, with links to many related topics. Wikipedia. Multiuser DOS.
- Abstract EROS: A Principle-Driven Operating System from the Ground Up www
Abstract of article by Jonathan S. Principle-Driven Operating System from the Ground Up. Shapiro, Norm Hardy; published by IEEE Computer Society. [IEEE Software] EROS: A Principle-Driven Operating System from the Ground Up.
- Extremely EROS-OS.org www
Extremely Reliable OS; home site. EROS-OS.org. Small, secure, real-time microkernel with orthogonal persistence: pull the plug and restart with no losses. Related to, and working with, ERights.org on E programming language. [Open source, GPL] EROS-OS.org.
- A The Computer Language Benchmarks Game - Erlang www
A benchmark of Erlang test programs vs other languages. The Computer Language Benchmarks Game - Erlang.
- High Wittenstein High Integrity Systems www
High integrity engineering design, High Integrity Systems, development, production; focus: software, safety critical engineering of software and systems; makes and supports FreeRTOS variants SafeRTOS, FreeRTOS-pro. Bristol, UK. Wittenstein High Integrity Systems.
- Growing FreeRTOS www
Growing article, FreeRTOS, with links to many related topics. Wikipedia. FreeRTOS.
- KolibriOS MEOS Portal www
KolibriOS and MeOS forums for: news, Portal, kernel, drivers, distribution, programs. MEOS Portal.
- Community KolibriOS www
Community site: news, KolibriOS, announcements, forum, FAQ, member list. KolibriOS.
- Growing Operating System www
Growing article, System, with links to many related topics. Wikipedia. Operating System.
- Weblog OSNews: Exploring the Future of Computing www
Weblog style online magazine on operating systems and computing environments. Exploring the Future of Computing. Daily updates, reader forum with many comments. OSNews: Exploring the Future of Computing.
- Alexa: Realtime Operating Systems
Alexa Directory Top Sites: Realtime Operating Systems
- DMOZ: Realtime Operating Systems
dmoz.org Directory: Realtime Operating Systems