14096RE: [cosmacelf] Re: Finally I have what I need...
- Jun 3, 2013Terrible acronym but maybe STD was still called VD back then...As a young 20-something I was once was part of a project that implemented a Payroll Management System (PMS). We never reflected upon the poor choice of acronym until the system went live, but by then it was already referenced plenty in the printed documentation and inviting endless smart alec comments.
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Buzz
Sent: Monday, 3 June 2013 8:37 AM
Subject: Re: [cosmacelf] Re: Finally I have what I need...Why not the STD (Simple to Design) bus? All of the RCA cards were built on the STD bus. It is very well defined.
From: granz_consult <art3@...>
Sent: Sunday, June 2, 2013 4:20 PM
Subject: [cosmacelf] Re: Finally I have what I need...Richard,
You may want to consider something like Cromemco's multiprocessor bus (it was called the C-Bus.) This was for the old S-100 systems and was an additional bus on the top of each card; you connected the bus via ribbon cables. This bus allowed the processors to communicate off of the S-100 bus.
Anyway, if you were to give each processor card some memory (maybe a few K of ROM for boot/monitor and some RAM) and then use the common bus for shared memory and I/O, that may do what you were wanting.
Cromemco's IOP was one of the more popular boards for this. You can find the manual at http://www.hartetechnologies.com/manuals/Cromemco/Cromemco%20IOP%20Instruction%20Manual.pdf.
--- In email@example.com, "Richard" <r.dienstknecht@...> wrote:
>building a new Elf.
> ... to start
> This is a picture:
>pin connectors and up to four different supply voltages. I Intend to put it into a small PC case and hook it up to the ATX power supply.
> It's a bus board for 10 96
>to build something like what I wanted to have in the Parallelf a while ago - just without the bus multiplexer for more than one processor. I'm afraid I would have a hard time to get the bus multiplexer working, so it will have to be a more traditional single processor computer with the memory and IO that was intended for the Parallelf.
> I want
>the bus multiplexer a try, at least if I can get some help :-)
> Once all this works, I may yet give
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.3343 / Virus Database: 3184/6375 - Release Date: 06/01/13
- << Previous post in topic Next post in topic >>