I think you have earned the title of Digital Archeologist!

@LongSteve

11 ай бұрын

Spot on. Looking at computer files with dates from 1976 onwards is unreal. I was only 2 years old then! 🤯

@UsagiElectric

11 ай бұрын

Thank you! I'm having a blast bringing these old machines up and saving the data!

@VK2FVAX

11 ай бұрын

Digital Necromage casting +2 resurrection. Very nice :) Looking forward to more pdp-11 adventures to compare with mine.

@brianclimbs1509

11 ай бұрын

I would say he's a pretty well-established computer archaeologist by now!

@PentaROX

11 ай бұрын

​@@LongSteve Think that I was born in 1990 and enjoying the content

When I saw the scratched platter of the Hawk Drive so many episodes ago, I thought: "Well that's it. An ancient system has ceased to work." Little did I expect, how far you and your growing communtity would explore, repair and understand things! This episode is an epic show of the capabilities you have gained together, you swap around cards and enter commands as if you had been a centurion service technician back in the day. And I have the feeling, that I got at least the concept of how careful but confident I would have to gor forward, if I finally spun up one of our old Pc's.

@KameraShy

11 ай бұрын

Timeless lessons in analysis and trouble shooting that apply across disciplines.

@UsagiElectric

11 ай бұрын

To be totally honest, when I saw that too, I thought the exact same thing. I'm constantly amazed at what the community has managed to extract out of this system. It's been an absolutely wild ride and there's lots more exciting and interesting stuff to come on the machine!

18:56 "There is one file that is quite interesting" * Points to "Girl82" * Oh no, is this what I think it is? "It's this one right here, KING" That's also interesting.

Mind your head on the ceiling when you jump up and down with excitement!

This old CPU5 OPSYS did not support file libraries / sub-directory. The idea of file libraries / sub-directory was a new feature in very late CPU5 OPSYS and all the CPU6 OPSYS systems.

@richardclarke376

11 ай бұрын

Must be fascinating to see these ancient systems you worked on being brought back to life!

@stonent

11 ай бұрын

Same thing with MS-DOS 1.x vs 2.x.

@KameraShy

11 ай бұрын

@@stonent Exactly what I was thinking. For the early OS's sub-directories were a very novel concept. Even those that came later like IBM's mainframe VM/CMS which did not support them. At least in the 80's. Haven't used it since, so don't know if it does even now.

@dbradley65

11 ай бұрын

@@stonent Right we got an IBM PC XT in with a 10 MB hard drive which had MS-DOS 1.0 and it's really fun considering filenames were limited to 8.3

@UsagiElectric

11 ай бұрын

I think this version of OpSys is somewhere in the middle. It does have some libraries, like the GL library, but I sure can't figure out how to access them! I'll have to get you on the horn one of these days and really pick your brain on the CPU5 OpSys!

I love how excited he gets over this stuff. He is like a little kid who just had the best Christmas ever! His enthusiasm keeps me coming back! Keep up the good work!

@bichela

11 ай бұрын

I get the same way when exploring old computers

@UsagiElectric

11 ай бұрын

Thank you so much! I had no clue what was on that platter and it was really epic to stumble across a 2nd complete OS!

@sdrc92126

11 ай бұрын

It reminds me how excited I was trying to figure how this stuff worked in grade school. Cell phones are boring.

@shayneoneill1506

11 ай бұрын

Oh you do. Back in the 90s me and my Dad got an old PDP8 up and running again after sitting in a warehouse rotting for like 15 years, and man I when we finally got it spun up and running again, I was hollering, it was a great feeling.

@JelMain

11 ай бұрын

@@shayneoneill1506 You should go read Tracy Kidder, The Soul of a New Machine.

Epic! First file to open is GIRL82!! I recall that KING game - had it on a CTL Mod One in 1975 where it was called HAMURABI!

@ViegasSilva

11 ай бұрын

ascii pr0n

@CATech1138

11 ай бұрын

as soon as he read the intro for King i was saying to myself that's Hamurabi

@stevenclark2188

11 ай бұрын

Let me guess, some 'tasteful' ASCII art?

@stonent

11 ай бұрын

Yes we must investigate for science or something.

@Drew-Dastardly

11 ай бұрын

That file took my intrigue so much I didn't even notice KING listed immediately afterwards.

The look on your face and the bouncing around actually brought a tear to my eye. I have been watching KZread stuff for a loooong time and that part of this video has to be one of the best things I have ever seen.

@KameraShy

11 ай бұрын

Hopping like a wrabbit.

@UsagiElectric

11 ай бұрын

Thank you so much! When I say it out loud, it sounds silly to be that excited over some 40 year old data, but I can't help it, it was so awesome!

That game, King, sounds like a clone of the classic Hammurabi, written back in 1968 by someone at DEC and then converted to BASIC by David Ahl in the 1970s.

Very Interesting. As a fellow geek, I really enjoy seeing you jump up and down when you get stuff to work. It's amazing to see how these storage devices still hold their data after 10s of years. Spin on crash free my friend !!

@UsagiElectric

11 ай бұрын

Thank you! I was super excited to come across another OS copy. With the right care, most of these old machines will run for another 40 years!

@PCFixer

11 ай бұрын

@@UsagiElectric May the Hawk always fly, may the Heads RTZ and may it never crash. Though, if it ever does, between you, Ken, and the Community, someone out there will flat out manufacture new heads to get it working again!

It's so cool to see files on a disk that were created in 1976!

@UsagiElectric

11 ай бұрын

It was awesome to see so many cool files from the early history of both this system and the company. The oldest file on the platter is from 05/07/1974!

@TheVintageApplianceEmporium

11 ай бұрын

@@UsagiElectric Good lord that's amazing!

@senilyDeluxe

11 ай бұрын

@@UsagiElectric That file will turn 50 almost exactly a year from now!

@gustavosaliola

11 ай бұрын

@@senilyDeluxe Like a Rolling Stone 😃👄🎸

It is great to see you SO GEEKED when DOS 5 comes up! Congratulations to you and the students of Butler!

@PCFixer

11 ай бұрын

I wonder if it's possible to 3D print shells for new air filters for the Hawk Drives, then cut foam to fill them, i.e. to create new air filters for the drives?

@UsagiElectric

11 ай бұрын

Thank you so much! It was awesome seeing it all work as well as it did!

@UsagiElectric

11 ай бұрын

@@PCFixer Totally possible, but it can't be foam, it has to be proper HEPA air filter material. But eventually, that will be something I'm going to have to tackle!

@PCFixer

11 ай бұрын

@@UsagiElectric Of course, pardon me, I was thinking about the foam stuff they use for lawnmower air filters, ha-ha--but for the Hawk, that just is NOT GOOD ENOUGH!

I don’t know which is more fun. Watching this equipment working or your reaction to it working. This is so much fun.

@jonorgames6596

11 ай бұрын

To top it off, the cat at the very end, a ending we did not deserve, but appreciated.

@williamgraham2468

11 ай бұрын

He will have to change the channel name to Neko Electric now.

Not Old enuff to have been around with this, but as an 80/90s Nerd... This has been a Killer Story Brotha!

I applaud all of you who are saving, documenting and archiving all these obscure and obsolete computers and software! We are quick to throw away old hardware when new and better options become available and we see zero value in saving anything... Later when we start regretting that we didn't keep anything from the past we soon realise that there's nothing left?! I could never afford a new computer when I started programming in 1981, and I didn't have my own computer until the late 80's, so I relied on borrowing old and obsolete computers until I got my first one, thus why I didn't care at all about these older computers when I got my hand on a new one. I remember throwing four fully working Commodore PET's in the garbage because they were useless - something I regret today. I regret throwing away my two SUN Sparcstations as well, as do I with many Motorola and Intel CPU's. I have however saved many Amigas from the landfills by repairing the pcb's from leaky batteries and restoring them to fully working, as a sort of contribution to saving some important computers for the future generations, but my dream of owning a IMSAI 8080 and a Unibus PDP-11 with a cool front panel like the PDP-11/20 or /70 but the few running ones, even those repairable, have become so expensive that I just can't afford one just because the vast majority of them are in landfills today... Thank you for this interesting trip to save the Centurion! (which later became Centurions ;) ) I'd never heard of Centurion before you made your first video, as I suspect most viewers hadn't, and now it's archived for the future! The computer has evolved so fast compared to almost everything else, hence why museums etc never saw the need to save the past ones because it's always too late even before you start thinking about saving one, and that we should do something about!

You literally jumping in excitement at seeing another operating system is _totally relatable_ and _absolutely adorable_ in the best way possible. I love this!

@JJGhostHunters

2 ай бұрын

Wouldn't be adorable if you had to work around someone like this all day. LOL!

I would add a toggle switch to disable/enable the heads. Instead of partially disassemble the hawk drive to get at the plug. You seem to enable/disable the heads fairly often, so a switch makes sense to me.

@thomasjosephlamarque2927

11 ай бұрын

Very sensible, make sure it has an indicator so you don’t accidentally try and boot when you meant spin.

That's fantastic. As you were jumping up and down, I was clapping with joy to see it boot. Never loose your enthusiasm. 👍

I am super impressed by your dedication to documenting this machine on youtube. Can't be many people on the planet who would put 100s of hours into this Centurion mini.

Seeing our boy jump for joy at the discovery of the OS, was an absolute delight!! Easily my favourite part of the video.

So in 1 year we've gone from 0 known working Centurions, to at least 3 (possibly a 4th with the Micro one, fingers crossed that one fires up and works).

I LOVE the Centurion series of videos! I'm working on designing a 65816-based "minicomputer" right now (trying to use every pin on the 65816 for its intended purpose, including multiprocessing, DMA, vector pull rewrite) and so this 1970s vibe is music to my ears and very thought provoking as I work on my own completely pointless project.

Awesome find! So great to see another centurion come to life. Job well done David!

18:59 -- errr, no, man... This *isn't* the "quite interesting" file we were all hoping for and expecting you to open. :P You were *almost* there. ;] .

15:10 - "I don't know what to do next!" Me: Yea, because it worked out of the gate. I mean, normally you'd embark on a multi-episode Odyssey of recovery, but here you are with working software.

I only understand maybe 10-15% of the technical parts, but 125% of your enthusiasm comes through. Great video.

There are two guys at my office that sound and act EXACTLY like this guy. They yell, laugh loudly and jump around all day like this guy. They program low level hardware. It is great to see this enthusiasm on a channel like this...but imagine trying to get work done with all that going on just over the next cube wall.

When I was in grade school (didn't go to high school) someone donated an old TRS-80 Xenix system with 4 terminals and I got it running. Couldn't do much with it then but it would be a fun learning tool now. Was lost to time. Thought you were going to hit the ceiling when you were jumping around.

Man that was amazing! Computer archeology at its best, hope you can get your hands on Vintage Geek's microplus soon!

Always love how excite Usagi David gets when he breathes new life into old kit… did wonder at one point if he might hit his bonce on the ceiling of his new lab whilst jumping for joy! 😊 Great to see more old computing kit revived - and with -relatively- little TLC needed. Fantastic work, David & his helpers.

I thought I'd posted here the last time I watched this, but maybe not? Anyhow, you have a gift when it comes to minicomputers, and electronics in general. Your enthusiasm for this stuff is boundless and contagious. I know the folks at Butler Tech will be thoroughly jazzed to get a working system back from this exercise. So very well done!

so cool, a new Cenurion OS find. Love to see your excitement while trying to read the platter. hoping for something good! congrat, and thanks to mr. hall who trusted you enough to lend you the platter, to try to read and copy it! - nizchka

I genuinely have no idea whats going on but I am completely hooked. I'm punching the air every time the chap shouts success. What a totally fun ( and I am sure for the right people informative) video- really well done, keep it up

18:28 This enthusiasm and joy for getting things to work, and the process used to get there is what I enjoy about this channel. Well Done!

I love it how he jumped ecstatically when his hunch totally worked and the Centurion just booted.

This reminds me of my first steps into the IT business back in te early 70's, throwing colored jumper cables at mixers, sorting machines, then writing my first programs, punching the cards, lots of cards, even more cards. some programs had 3 to 4 boxes of punched cards to be read in just before the real data followed. oh, those were the times when we were young! by the way, I have never seen this type of machine before - I started on IBM's 360s with 48K of memory..., even had (for a relatively short time) a Honeywell-Bull 61-40 at home - a full room of hardware weighing 2000lbs and heating it with 3KW power consumption. But my wife learned Cobol on this monster...

13:20 Only off by one day, but 5 years later. That CPU5 system was used 5 years longer than the newer system.

I don't think I ever ran across a CPU5 system at a client. Everything was CPU6 and were selling CPU7's. Glad Butler Tech was able to take it and preserve it. I wonder where it originated from.

@kenromaine2387

11 ай бұрын

What dealer (Buddy Cruze) or customer did you work at with Centurion systems? I was at Centurion HQ from 1975 to 1986.

@dbradley65

11 ай бұрын

@@kenromaine2387 I worked for Cincinnati Data Systems which was bought by Cruze Computer of Knoxville. I started there in 1985 just out of high school doing support and some CPL Programming and integrating with PC's.

@kromaine13

11 ай бұрын

I personally installed Howell & Chuck's first Centurion system in around 1978. Howell & Chuck are pictured in some of the early Centurion sale brochures with both of them looking at a manual on a desk, Howell is sitting & Chuck standing.

@dbradley65

11 ай бұрын

@@kromaine13 I remember the names. When I started I believe they had handed things over. Jim Milam was the manager of the office at that time. The Cruze's made regular visits. They had the majority of CPA's in the Cincinnati area as customers. Some general contractors and distributors rounded out the other customers.

@kromaine13

11 ай бұрын

Buddy Cruze was a good man. I understand that, Buddy passed a few years ago. I guess you know David Williams at Cruze Computer. David an worked together at Centurion & ZTRON before Buddy purchased the assets from Bankruptcy Court.

Off the rails question (as usual) The Centurion terminal with heavy burn-in CRT. How about establishing an inquiry into finding a replacement CRT? Original part of course. They were originally bought from one of the CRT-manufactorers. You could be in luck and get new old stock. It doesn't seem incredibly impossible. Just wondered...... Anyway. Cheers and congratulations. What a thrill and a joy to watch.

This is an amazing delve into a computer system that I wasn't aware of. It's brilliant that you are saving this old data and hardware.

I love your channel! You should not underestimate your importance to history - you are a bridge from the generation who built and used those systems to today's enthusiasts who think that Apple is the pinnacle of technology and the end all. Just like there are those who knew and worked on early automobiles and who knew that EV's existed way before Tesla built their expensive golf carts, you are bringing this old technology to life and showing the origins of technology. You are indeed a digital archeologist as mamulcahy noted several days ago. Please keep up the great work and keep on bringing that old technology to life. As someone who loves vintage things (especially cars), this makes me almost giddy when I see how excited you are when you get something to work. I call moments like you exhibit "Geek Super Bowl Victories"!

Like tuning in and catching these updates! I was getting my kids to program on the famicom a while back. My tape drive wasn't working so I was setting up so I could record and save to my phone the bg files etc. but it wasn't working so good, but I did get it to work with my laptop. I recently picked up a Yamaha MD8 and it works!

They really did build those things back in the day. Around that time in the early 80's I was working on a Data General Nova 4 system paired with 300 MB Control Data hard drives of the platter variety. 14 platters as I recall, and yes, they were removable. There was a company out of Pittsburgh called Randomex that would come around and inspect the disk platters and wash them periodically. Now I have more power in the palm of my hand. Thanks for the nostalgia trip. :)

Really nice work that you are able to do with the Centurion. I do believe this qualifies you as a Centurion Maestro. It's great to see the progress and these successes, and I can speak for everyone when I say we share your excitement!

I've seen a Centurion desk with drive on right and regular drawers on left so it was wider but otherwise the same as the schools. I first saw it in 2000 when it still had its roughly +200 lbs power supply on the lower back of desk. The original owner shared that they got it in 1979, however in early 90s the drive pack was installed and turned on without following procedures which cause a drive crashed and nothing was salvageable. They only kept the desk part because they couldn't get it through the stairs without disassembly, but felt it worked fine as a desk leaving it in place with a Win 3.0 and later a Win95 PC sitting on the desk. A few years later I noticed they removed during an office remodeling, always wondered about Centurion ever since.

15:10 That feeling and enjoyment is just pure gold. So pure about something small, but still a big thing. That joy is like from childhood of getting something great.

Butler Tech sounds like an awesome place! So cool that they still had one of the old Centurion systems.

Unless you've experienced the thrill of recovering one-of-a-kind data from a damaged, deleted, formatted or _othered_ hard drive whether it be recent or from decades ago, you can't really understand how exciting it is to bring it back to life and get a full copy of it.

I've never seen you as excited as you are in this video, congrats on managing to do all this smoothly! Never expected a game to be on a minicomputer.

Still watching and recalling some fond memories from my days at Centurion.

Happy to see those enthusiastic reactions when stuff gets booted up! Sidenote though: whenever I want to watch some vintage films, I go straight into the DPMENU to choose from.

Mate, the look on your face when it booted 😁 I’m sat outside on a balmy summer’s evening in the uk and I did an air punch. This is why I love this channel.

after retiring from IT, i was a locksmith for a fair number of years. to remove those broken pins, you may be able to use a *_"Broken Key Extractor"._* they are cheap and easily located with a quick search.

That's fantastic. As you were jumping up and down, I was clapping with joy to see it boot.

KING was a game I remember from David H. Ahl's _BASIC Computer Games_ . It's similar to HAMURABI in that you must manage the resources of a country in order to prevent it from going bust. Is there a BASIC compiler on that old beast? Seeing these old Centurion systems running again brings me joy. I know literally nothing about Centurion systems or software, but the 1970s and 1980s had dozens of old minicomputer systems that used to run entire businesses (on kilobytes of memory) but then were replaced and simply forgotten. Compared to IBM or DEC hardware, or later, microcomputers with games and such, there wasn't enough love for these old business-oriented beasts to preserve or emulate them. So seeing these Centurions, working like new, is refreshing.

Brings back memories of Data Processing Class in 1980. I discovered the Win2k problem in 1980 but didn't think to take it further. I asked my teacher what we would do in the year 2000 but she didn't really know.

I love how passionate you are about that system! It was a lot of fun seeing you disgnose and test the system.

I'm curious about the "sockets" at 2:30 in the video. There are plastic 20-pin sockets in the upper row and 20-pin fiberglass and milled pin "sockets" in the lower row. Maybe some oldtimers know whether it was ever a standard industry practice to use these custom socket replacements on production boards. I've certainly never seen it before.

@SeanBZA

11 ай бұрын

I would say that the folded pin sockets were there for the IC's that they knew would not need updating, like decoders and logic, but which needed to be programmed before assembly, so put them in there to have a socket with low number of insertions. The turned pin was probably there for things like microcode and decode ROM, that they knew would have a few cycles or release on them, and improvements and upgrades, along with bug fixes that were likely to be needed in the first few iterations, so make the sockets durable, and able to survive 100 plus upgrades, so they would have no problems with flaky sockets. Also might be the boards were populated with a mix, because they had a few suppliers of sockets, and would use whichever one was nearest in placing them, using a few feeders in the autoplacer to hold sockets, and the machine running round robin between the feeders, so as to make use constant, and the feeder got whichever tube was closest when it was empty.

Your giddiness when you finally loaded the OS was contagious. I started hopping in my chair and I barely knew what I was cheering about lol

It's interesting to see troubleshooting episodes. It's also refreshing to see an episode where all the hardware and software cooperate, and everything works first try.

Great work! Only you could do this stuff, thanks for preserving these wonderful systems!

Your enthusiasm is very contagious. I'm too old to have used minicomputers, and only really remember them from the background of various 70s tv shows (e.g. Rudy chatting with Oscar Goldman in front of some beast of a machine), but I always get genuine vicarious nostalgia vibes from this channel with all your gasping and leaping about.

Jumping around the room. Good work 👍

Epic job David! I enjoy the Centurion story very much and it's wonderful to see how much knowledge about it you have learned over time.

no dwelling on the school days needed, it was timed just right to ride the trajectory in such a unique period of time, having the capability to understanding how the machines work that are becoming our symbiotic structure zone is a rare combination gen xers got to witness the biggest zenn diagram of.

I get excited as well seeing you so happy to see the results on the screen! Good job

Your enjoing is ABSOLUTELY fascinating for me.... As usual, AWESOME work, compliments !!!!

I really enjoy your videos. Thanks for bringing these systems back into the light!

Fantastic work!! So glad you got that 2nd OS and the computer up and running. Thanks for sharing the fun!

After all ur efforts it is really nice to see u so happy...good luck for ur futur project

I hadn't heard of this system before, but it was exciting to see you get it to boot up and how you troubleshot the system... I think your enthusiasm about the machine and getting this archaic OS was contagious that I immediately subscribed! I certainly understand that emotion when you finally see something technical to come to life like that. Congrats on doing so and I hope to learn more about this system in future videos. Thanks a bunch for making this video!

Wow, It is amazing that you gave us the demonstration, but, I am not going into any computer dated back 40 years ago. I can't believe that the plastic cover for Hawk Drive are the same as 42 years ago without "Yellowing". I guess you and I are at the same age..😄😁😆 I remember the computer at Dallas Public Library back in 1982 and I entered as " LSCAN" in order for me to search the books instead of card catalogs.

This is truly amazing. I'm so happy for you for getting this system up and running.

Regarding games, I seem to recall that when I was in charge of a Centurion system there was a version of Knight’s Tour that shipped with the system.

@ChristopherHailey

11 ай бұрын

I remember playing that on an IBM computer in the '70s

@93sr20det

11 ай бұрын

You used one?

@lilithcal

11 ай бұрын

Yep. I used to work at a company called Machinists Tools and Supplies. We used it for sales/picking tickets, invoicing, inventory, purchasing, shipping, receiving, general ledger and payroll. At one point I was given access to the source code for almost everything. I eventually got laid off due to economic pressures but ended up with a line printer in my living room. Later I learned that the system had been swapped out for a Unix micro. Someone had developed a program to convert CPL6 programs to the C language which was then compiled for the new machine.

Very cool "disc"overy! See what I did there? LOL Congratulations on such a huge success. It was awesome to see. Hey, I was thinking, if you need a 60Hz time base for those old machines, you can use a MM5369 to make a small clock board. The MM5369 is an 8-pin DIP IC that uses a standard 3.579545 MHz NTSC "color burst" crystal as a clock and produces a precise 60Hz square clock train output. Perfect for retrofitting in old clocks that use the AC line for a 60Hz time base. I have bunch of MM5369 IC's. I can send you some to use. The IC's have been discontinued for some time but I have seen hacks to replace them using tiny microcontrollers and such. They are getting to be very rare these days. Anyway, if you want some of these IC's, shoot me a message with where to send them and I will send them off to you. Cheers!

I absolutely love this channel. So much care and joy go in and come out of every episode, it's a great experience to get to observe. Keep killing it dude, and I'm psyched for the kids who will get to see a real working centurion! 12 out of 10!

Wow,. I wish I had even a fraction of the energy and enthusiasm that you do. Great find on the machine, though. Not a lot of these left over after the Great War, but it serves as a testament to the longevity of RobCo products that they're still functional even 200 years later.

Great work. It's neat how you can use your working system now to test out boards and discs from other sources.

I love your genuine excitement and joy for vintage tech!

Your work is amazing and I eagerly await each episode in the Centurion series. For your next step in learning to program in C, you might want to master the use of arrays. They'll make your ROM-dumping adventures (and other low-level work) so much easier.

Awesome work! Great to see even more Centurion stuff preserved and running.

Looking at you inspect that disc platter reminded me of my days back in the navy working on the UYH-3 disc drive units.

Wow! Back to the 70s. I remember seeing computers like that when I was a kid. I have no idea how they worked though. And you found a game! Nice...

Fascinating and it's really great t0 see a genuine enthusiast at work! Well done!

Another fantastic video. Your repairs, as usual, are amazing. I'm sure you've already seen it, but I wanted to point out the Hakko desolder guns. I have an FR-301 and it's an absolute dream for desoldering DIPs. It's very fast, so less thermal stress on the chips, and less stress on me. It removes virtually all the solder. Often, when it's done, the chip falls out without having to break the pins free. As often as your changing out DIPs, I thought you might benefit.

It's so co how excited you get when things work. Loving the enthusiasm.

@bikeforever2016

11 ай бұрын

*cool

Watching your excitement accessing the data for the first time is great!

Your enthusiasm is contagious, cool vid!

Love your enthusiasm!!!! Fantastic video

That’s really something else. I’m working on restoring some hardware, programs and files from early 80s and I’m hoping for a joyous moment like you’ve found here.

The pure joy on your face when the OS boots the 1st time is awesome. Very cool stuff.

Your exuberance is contagious. I wish we could do the same thing with my Technical Design Labs - Xitan (S-100 bus) computer.. I found a pa ge that has a PDF of the ZPU card and a KiCad footprint of a general purpose card. The circuit diagram was barely readable and has a missing gap in the middle with some lines that goto nowhere.. From his KiCad GP card, I was able to make a blank card footprint, that I can use to make ANY S-100 bus card you could dream up. I do not have any software for the Xitan, but the PDF did have some assembly on it.. My wild idea thought, since I have a KiCad blank card footprint. to make a S-100 bus version of the C-64 and run Hesmon on the Xitan to look at the entire Z-80 memory. Other ideas were to make a completely modern retro computer. ARM processor i2c, USB, HPIB, CAN Bus, M.2 SSD, uSD, Wi-Fi, plus anything else you could dream up that didn't exist in 1979.. If this is doable, might have to scrap the original S-100 architecture and repurpose all of the pins on the bus. or give the bus a multi-mode pin.. Let me know what you think..

I love your enthusiasm. I get just like that when I manage to boot weird SBC boards.

This was a nice happy episode

I cannot give enough thumbs up here. This is really awesome and I can understand your emotions. I wish i could bring back the same feelings I had on my Ericsson 230 way back when in 1983.

Man, finding games on those old machines is such a treat. :) Excellent work!

Awesome, so happy for you, Mr Hall and Butler Tech.

Love the rom reader! Thanks for sharing! love your content.

ABSOLUTELY FANTASTIC!!! THANK YOU AND YOUR COMMUNITY! 💯👍🎉🎉🎉😁

The enthusiasm in this video is amazing! 😊