Am Fr., 6. Dez. 2024 um 23:07 Uhr schrieb Steve Simon <steve(a)quintile.net>: Wikipedia: "What is not immediately apparent is that Helios extends the notion of Unix pipes into a language called Component Distribution Language (CDL). In CDL, a typical Unix shell pipeline such as more is called a task force, and is transparently distributed by the Task Force Manager server across the available CPUs. CDL extends traditional Unix syntax with additional operators for bi-directional pipes, sequential and parallel process farm operators, load balancing and resource management." Mostly. "The Unix compatibility library described in chapter 5, Compatibility, implements functions which are largely compatible with the Posix standard interfaces. The library does not include the entire range of functions provided by the Posix standard, because some standard functions require memory management or, for various reasons, cannot be implemented on a multi-processor system. The reader is therefore referred to IEEE Std 1003.1-1988, IEEE Standard Portable Operating System Interface for Computer Environments, which is available from the IEEE Service Center, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, USA. It can also be obtained by telephoning USA (201) 9811393" http://www.transputer.net/hbooks/techref/hbk.pdf Does that number still connect to the IEEE? :-) Best Martin

For anyone playing along at home, some links I turned up this afternoon. There are other O/S of the same name, using the capitalisation which the Perihelion version eschewed. One for Arduino and another Sel4 related microkernel <https://drewdevault.com/2022/06/13/helios.html> <https://docs.arduino.cc/libraries/helios/> Wikipedia - already mentioned [ with incorrect capitalisation? ] <https://en.wikipedia.org/wiki/HeliOS> Helios books: many texts, PDF & html, available + names of many resources <http://www.transputer.net/hbooks/hbooks.asp> Helios Shell <http://www.transputer.net/hbooks/shell/shell.html> CDL - A Distributed Language for Helios <http://www.transputer.net/hbooks/03/hn03.html> CDL was mentioned by others, source code might still be available in Helios-NG Repo <https://github.com/axelmuhr/Helios-NG/tree/master/cmds/cdl> Helios-NG [ untouched for years ] <https://github.com/axelmuhr/Helios-NG> This is a project for breathing new live in Helios, an OS from the 90's. Helios was developed by the (now defunct) company called Perihelion Ltd., mainly targeting the INMOS Transputer but later adding other CPUs like the ARM series or TMS320c4x DSPs when INMOS' decline became clear. Legal? I got the permission from Perhelions fromer CEO Tim King and main programmer Nick Garnett to "[...] do whatever you want with the Helios sources." So here we are: "Helios Next Generation” or Helios-NG for short, put under GPL v3. Author's Helios-NG page, 2014. ’The Plan' <https://www.geekdot.com/category/helios/helios-ng/> Transputer board, 2024 <https://www.geekdot.com/stgatw-programming-and-software/> To make a long story short: This is basically a design, where the ATARI Mega-ST is used as a boot device and after that just handles file- and user-I/O. The Transputer is attached to the ST via DMA and runs the Helios OS and has direct access to the graphics controller called ‘Blossom’. Totally different concept. Author ‘about' <https://www.geekdot.com/about-me/> ABOUT ME Hi! I’ll make this short… or at least try to. My name is Axel Muhr. Born 1970 I’m an fairly old geek compared to todays Web 2.0 standards. Let’s say I do remember how to cope with 4k RAM and considered a 174kb 5.25″ Floppy quite a big storage device… not mentioning it’s insane speed. -- Steve Jenkin, IT Systems and Design 0412 786 915 (+61 412 786 915) PO Box 38, Kippax ACT 2615, AUSTRALIA mailto:sjenkin@canb.auug.org.au http://members.tip.net.au/~sjenkin