@@THEPHINTAGECOLLECTOR Now, I wonder will your patches work for other emulators/platforms like Vice (x128), Retro Virtual Machine (CPC6128) or AppleWin which supports SoftCard emulation? It will be fun to network together C128, CPC6128 and Apple II! ;)
From what I understand, you can also write the MPMLDR to the boot tracks of a disk and boot into it directly. Similar to how it works with the CPMLDR for CP/M 3. I'm sure I will refer back to this video, once I get MP/M running on my own hardware. You did a great job on exploring the multiuser aspect of MP/M. What I would wish for is an exploration of the multitasking capabilities of MP/M, the other big selling point. I would have jumped on MP/M much earlier, were it not for the advanced features of CP/M 3 that never made it into MP/M. Like the support for up to 512 MB drives and up to 32 MB files.
Thank You for the video. Reminds me of the Serial network Lantastic sold. But, I can see how it comes in handy. Several Mini computers like a Dec. Yould could add several serial ports to. Terminals, Printers, and now lan ports among other things. As for the mail. I can't remember what Os I was using. Caldera Dos or what not. Got a similar mail error.
2:57 that was the "easy" way, the hard way would be doing a pull request patch to remove completely the dependency on X11 because no one uses that thing anymore, replace it with a modern library GLFW or SDL.
Reconfiguring the system by recompiling (parts of) the OS... those were the days. I somehow associated this "tradition" mostly with early Linux, but of course it makes sense that people were doing it with earlier OSes as well. The network drive mounting refers to a server ID, which suggests that there can be multiple servers on the network. If the "network" is really just a bunch of independent serial connections between the server and the clients, how would a multi-server network work? Is there any support for routing the network traffic? Or do you just use multiple serial ports on the client to connect to different servers?
There‘s no routing. And as far as I understood it, you would add multiple serial connections to different servers for a multiserver environment. As you don‘t provide the serial connection, but an optional server-id, the system would propably figure it out itself, which serial line matches the given server-id.
Serial port networking seems ideal for use with a modem but that default Authentication is really poor for a system connected to a phone line so maybe not the intended use case.
I haven't seen this since 1986, when I connected 256 self-designed Z-80 CP/M machines on a real RS-232 serial line, multiserver & multiuser & multitasc each, so I got a 256 x 256 x 256 virtual machine, corresponded to a 16,777,216 CPU supercomputer. Not as fast as today's.
@@THEPHINTAGECOLLECTOR Each CP/M computer panel had an 8-line RS-232 interface. Each CPU could exchange data with 6 neighbors. There were 8 x 8 CPUs in a matrix, 4 such matrix sheets next to each other in space, this used 6 serial lines / CPU, 2 remained outside the panel, which were the output and input lines, so that any of them could be connected to a separate keyboard and screen, through a 256 to 1 multiplexer switch or to any other peripheral through which the data can be loaded and the result can be read. There was 64K RAM on the panel. 256 x 64k in total, not a lot these days, and they all ran multitask CP/M separately. This was just a model so that when the time comes we can integrate it into 1 chip. That time has now come. We can make this machine with a million times as much memory, and a thousand times faster, and a single chip, instead of 2 m3 racks. CP/M is still the best system today, it's interesting that Google suggested it to me, even though it didn't exist when I last dealt with it. In today's age of LLM, this would be a very useful thing..
I wonder if anyone has made a CP/NET parser for Wireshark ? It would be interesting to see what traffic flows between the MP/M host and the client systems.
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Thanks for the video! I’m quite comfy in CP/M, but I never touched MP/M & CP/NET - this was super interesting and educational, thanks!
@@vmisev you‘re welcome!
@@THEPHINTAGECOLLECTOR Now, I wonder will your patches work for other emulators/platforms like Vice (x128), Retro Virtual Machine (CPC6128) or AppleWin which supports SoftCard emulation?
It will be fun to network together C128, CPC6128 and Apple II! ;)
Wow this is a great video, I have not touched this stuff since early 1990s but it all came flooding back. Thank you for sharing
@@marksterling8286 you‘re welcome
Another really good video, well explained and easy to follow along with. Thank you as always for sharing.
@@NiceCakeMix Thanks! My pleasure!
Thank you so much 😊
From what I understand, you can also write the MPMLDR to the boot tracks of a disk and boot into it directly.
Similar to how it works with the CPMLDR for CP/M 3.
I'm sure I will refer back to this video, once I get MP/M running on my own hardware.
You did a great job on exploring the multiuser aspect of MP/M.
What I would wish for is an exploration of the multitasking capabilities of MP/M, the other big selling point.
I would have jumped on MP/M much earlier, were it not for the advanced features of CP/M 3 that never made it into MP/M. Like the support for up to 512 MB drives and up to 32 MB files.
I always love your content.
Thank You for the video. Reminds me of the Serial network Lantastic sold. But, I can see how it comes in handy. Several Mini computers like a Dec. Yould could add several serial ports to. Terminals, Printers, and now lan ports among other things. As for the mail. I can't remember what Os I was using. Caldera Dos or what not. Got a similar mail error.
2:57 that was the "easy" way, the hard way would be doing a pull request patch to remove completely the dependency on X11 because no one uses that thing anymore, replace it with a modern library GLFW or SDL.
@@monad_tcp indeed, though that would have stolen away my time to investigate into CP/NET, so …
Reconfiguring the system by recompiling (parts of) the OS... those were the days. I somehow associated this "tradition" mostly with early Linux, but of course it makes sense that people were doing it with earlier OSes as well.
The network drive mounting refers to a server ID, which suggests that there can be multiple servers on the network. If the "network" is really just a bunch of independent serial connections between the server and the clients, how would a multi-server network work? Is there any support for routing the network traffic? Or do you just use multiple serial ports on the client to connect to different servers?
There‘s no routing.
And as far as I understood it, you would add multiple serial connections to different servers for a multiserver environment.
As you don‘t provide the serial connection, but an optional server-id, the system would propably figure it out itself, which serial line matches the given server-id.
NetWare 2 required you to link object files as well. Common in the day.
Serial port networking seems ideal for use with a modem but that default Authentication is really poor for a system connected to a phone line so maybe not the intended use case.
I haven't seen this since 1986, when I connected 256 self-designed Z-80 CP/M machines on a real RS-232 serial line,
multiserver & multiuser & multitasc each, so I got a 256 x 256 x 256 virtual machine,
corresponded to a 16,777,216 CPU supercomputer. Not as fast as today's.
@@perceptron-1 can you elaborate how this was physically connected?
@@THEPHINTAGECOLLECTOR Each CP/M computer panel had an 8-line RS-232 interface.
Each CPU could exchange data with 6 neighbors.
There were 8 x 8 CPUs in a matrix, 4 such matrix sheets next to each other in space, this used 6 serial lines / CPU,
2 remained outside the panel, which were the output and input lines, so that any of them could be connected to a separate keyboard and screen,
through a 256 to 1 multiplexer switch
or to any other peripheral through which the data can be loaded and the result can be read.
There was 64K RAM on the panel. 256 x 64k in total, not a lot these days, and they all ran multitask CP/M separately.
This was just a model so that when the time comes we can integrate it into 1 chip. That time has now come. We can make this machine with a million times as much memory, and a thousand times faster, and a single chip, instead of 2 m3 racks.
CP/M is still the best system today, it's interesting that Google suggested it to me, even though it didn't exist when I last dealt with it.
In today's age of LLM, this would be a very useful thing..
I wonder if anyone has made a CP/NET parser for Wireshark ? It would be interesting to see what traffic flows between the MP/M host and the client systems.
How clarifier for me is the ED editor to tell al of MSDOS was a copy and ripoff of the CP/M.
@@asanjuas it totally was …
@@asanjuas Apparently both were inspired by _ed_ from Unix. Which incidentally is in a way also a distant ancestor of vi.