finally, mental outlaw reviews a good operating system

His controversies aside, Terry Davis was a truly knowledgeable and gifted programmer and the computing world is just a little less beautiful without him imo. RIP Terry ❤️

Man's so talented he put 3D models in a text file

Terry always mentioned that he hated learning what amounted to two programming languages (the shell language and assembly) so he made holy c universal

Some stuff about TOS: The .CPP extension is deprecated as it has been replaced by .HC. This is also why Edit didn't have syntax highlighting. The .Z enables compression. If something hangs the system, for example a while(TRUE); loop, you can press either CTRL-ALT-c (cancel task) or CTRL-ALT-k to kill it. Technically, TempleOS has HDAudio. Terry didn't implement it because he couldn't get it to work. You don't need to re-type code in the command line. You can put your cursor at the end on a line of code you want to get run and press enter. The whole operating system gets JIT compiled on boot. Left-click/space usually opens up files/changed directory. Right-click/enter opens a submenu for file actions. CTRL-ALT-a enables AutoComplete, CTRL-ALT-A disables it. ZealOS is a fork of TempleOS with 32-bit graphics and networking support. Networking has a bug where e1000 hangs, but virtio works just fine. ZealOS also has SATA support, heck it's even a requirement. Also dark theme.

RIP Terry! Always in our hearts, and living rent free in the glowies heads!

I always loved Terry's streams showing off his tech. It was impressive to watch raw passion as he demonstrated drawing elephants and the like in such a constrained visual style. Great chat interaction too, he was truly a man of the people. RIP.

I know Terry was a deeply troubled person but I geninuely miss him. I loved his streams and his walks that he would go on. Cheers Terry may you finally be at peace

Thanks brother Mental. Now you transcend into the spiritual realm of operating systems. No OS can compare to the greatness of our third temple!

For anyone who wants to see more showcasing of TempleOS, Linus Tech Tips actually has a very respectful video in TempleOS. They go into more features of the OS and the way they showed it off gives the rignt message to the audience, i.e. Respect Terry and recognize his controversial actions and words stem from tragic mental illness.

Others glow, you shine❤

“..I guess Bash is bloat in God’s temple” 💀 RIP Terry..must have been an unbelievable amount of knowledge, dedication & creativity in that mind of his.

If only this video had been uploaded in the divine resolution of 640x480

He's running them over in the afterlife

Terry is one of my inspirations to get into low-level programming. The idea of a compiled shell using the same language as the core of the operating system, coupled with the interface of early BASIC, really sticks with me.

There is nothing you can say to describe how impressive this project is. Rest in peace Terry!

I think Terry is often rightfully titled as the greatest programmer of all time. Probably only someone like the dude that wrote RollerCoaster Tycoon (or what it was) completely by himself in assembly gets close to him.

Terry was really an amazing guy. Hope he is at peace

Something I would like to mention is that you can actually run programs directly from the editor by pressing F5, you don't have to exit and write #include. As for the editor itself, I believe it has nothing to do with Ed from Unix, it is completely new created by Terry as is everything else in this OS. Also the .CPP extension is old and doesn't have syntax highlighting so it's better to use .HC, but this was already mentioned in another comment by Slendi. Also about the OS being 16mb, that's actually the OS including tons of demos and like ~20 games. The actual barebones OS is only 2mb. Also just another thing to mention, yesterday was the 4th anniversary of Terry Davis's death, he died on August 11th 2018, may he rest in peace. Thank you so much for covering TempleOS!

His work could be considered a piece of art that can be admired even for those who don't know anything about programming.

Creating a whole new OS from scratch, in itself is an amazing achievement. Stuff of legends

For somebody who had such illness, Terry was really gifted to code all this. I wonder what could he create if his health was fine.

I’ve been running TempleOS on bare metal on a spare computer for a few months now. RIP Terry Davis; we didn’t deserve him

For everyone wondering, the text at 3:00 (ウィンドウズ) actually means Windows and it's also pronounced just like the English word.

A brilliant man fighting so many personal demons. He would have been great working for us, mental issues and all.

Want you to know you are one of the few KZfaqrs I watch. Take care

It's amazing how TempleOS was able to achieve a more modern day Commodore 64 experience. It would be cool to see a video on the TempleOS derivatives that aim to further improve and modernize the original

Not only did he build his own house from trees he cut down, he planted those trees himself

Press F to pay respects to Terry Davis

Alphabet boys can never win against holy C

R.I.P. Terry A Davis. You were the realest ninja around, and your talents and genius were too good for this world. I hope you're having a blast in the world after, mowing down glow in the darks while Jesus rides shotgun.

God, I wish holy c was the mainstream scripting language instead of python

This OS insanely impressive. Very primitive, but genius in design. It would be cool to see another operating system that runs nearly this smoothly.

Thank you for doing this. It makes the prospect of exploring this marvel of modern technology a little less daunting, and certainly encourages me at least to do so. In my view, one must put aside esthetic judgments and realize that, for instance, real-time softwares can be created on this platform which will run at the maximum speed your hardware is capable of because it's right up against the metal, running at ring 0. Task switching makes other OSes look crippled. Be ye not deceived by the simplicity of first impressions. This is proof that we who have taken the red pill have other options than those offered by corporate devils, so to speak.

There are no separation of privileges because we are all equal in the eyes of God.

I've waited for this for sooo long! Thank you! Now make glowing three letter agency jokes and the circle is complete!

Had to smile when I saw that he separated his games into fun and unfun. Ironically, it was often during his 'unfun' flight simulator that he'd get lost in thought. Rest in peace, Terrence Andrew Davis. This video was definitely one of the more informed looks at this operating system. It's as you say, most people either just focus on Terry or try to navigate three menus within the OS and then give up. You made it sound open-ended. Maybe we can return one day to T-OS and see if there are any secrets worth discovering. I find its very nature curious. It's open and accessible for everyone, just like a real temple. However, to make good use of Terry's OS you really have to speak (Holy) C fluently. You sort of have to be a jack of all trades even, like Terry was. Interested in games, interested in creating, interesting in sounds and graphics. Only then, I believe, you can create some meaningful program, update, add-on or whatever.

The motives and the real life practicality of this TempleOS might be questionable. But as you said, TempleOS is an engineering marvel in programming, building an entire OS from tru scratch and having so many features and utilities it's pretty miraculous.

This is like digging up some metal, forging the metal into an ax, and then shopping down some trees with the ax, then making a house out of those trees

An idiot admires complexity, a genius admires simplicity

Some people are known for designing programming languages (Dennis Richie, Larry Wall, Niklaus Wirth etc), and some are known for designing OS kernel (like Linus). Terry did both: a self-hosting OS. How many of you guys can do that? Sometimes the difference between "mad" and "genius" is super thin :)

Asking people if they ever talked to god is a great ice breaker in awkward social situations

I only knew about Terry and TempleOS via Fredrik Knudsons channel. It was interesting to get a more technical look on his life's work. Thank you!

Ah, it's axiom that every tech youtuber will eventually cover TempleOS.

my reddit account got banned for repeating terry's holy words

So Terry had the exact specs concerning lines of code, just like Noah had the measurements for his Ark. Huh.

Even some normies use the word glowies. Without TempleOS Terry's legacy will still live on in the dictionary.

At various points in my career I've worked on embedded systems, HPC systems, cloud deployments, compilers, kernels, libc and financial trading systems. Terry's work here makes me feel like a big dumb-dumb banging rocks together in comparison.

Terry Davis' story is so tragic. I hope he really is in a better place now, even though he was delusional due to his illness. RIP

Terry was so smart that he went insane. Rest in peace

Great point about the size of a Bible app compared to the whole system. That's the example that made me really appreciate it, a lot of work and talent is in this.

Something funny i found out is that the seat the pope sits on is called the "Holy See" so HolyC is a play on words

Keep in mind that there is a "Lite" version of the OS which is 2Mb

Feds didn’t like Terry being so gawddamned based

"I'm the smartest programer that has ever lived" - God himself

Still to this day the best work of a singular person. RIP Terry.

As much of a controversial figure Terry Davis was, you can really see him shine in that interview he did at McDonald’s. The guy was really intelligent and knowledgeable about programming and can see how lucid he was when he talked about that subject. Sadly, he happened to be plagued with a mental condition he couldn't get help for and that effectively destroyed his life.

I'm not a Christian, but I must admit this is so impressive and cool.

I remember hearing about this guy- from what I remember, this OS is one of those things that’s really impressive just because it exists, even if the OS itself is awful. I felt really bad when I heard his story, it really makes you wonder when you see people like him. At least he got to make something for himself. I didn’t remember that he died, rest in peace.

Solo-building an OS from scratch is truly impressive! But the devil definitely sneaked in the font...

That iso file is sooo much smaller than the font I downloaded this morning.

"You run them over with your car, that's what you do." - King Terry

Finally, an operating system safe from built in spyware

I love the idea of sprites embedded within source files. RIP Terry

His dad worked on the Triton nuclear missile systems. Both phenomenal achievements in their own right.

the only OS co-developed by god

It’s a shame we never got a Drake x Terry Davis collab. Great video as always Drizzy!

Linus always envied Terry's genius.

3d models visible right where you define them, when text is cut off it scrolls s.t. you can see the whole thing. I'm seeing some unique and consistent design philosophy (make stuff fully visible right where it's defined) that you can only really get when something is written by 1 person. When you have more than 1 person working on the same code it sort of becomes, as I think of it, "hive mind code", and hive mind code is garbage. Much respect to Terry for pushing forward with his own vision, there's a lot of useful concepts in there

Most secure and stable operating system on the face of Earth. They don't even need McAfee antivirus with it. That's how badass it is.

Glow in the dark CIA....

Whenever people thinks they are better, i always think about this project.

Shine on you crazy diamond! RIP Terry.

What a lot of people don't understand is that Terry's cursing was his minds way of protecting himself from others. His cursing was never meant as derogatory or to purposefully be racist. People with metal disabilities cannot defend themselves normally, physically. And though cursing is seen as a lower form of communication, it is still just that, communication. Though it may pierce the ears of the listener. The listener non-the less will hear him and understand his emotion by virtue of the curse word. And let us not forget one of the most versatile and (i.m.o. under-rated) + (and condemned) word in the English vocabulary is the word "Fuck". Good starter video to this journey into Temple OS Mr. Outlaw. I have no doubt Terry is smiling down on you from the 3rd Temple in which thou art in Heaven. In honor for Terry, God; bless Mental Outlaw and his many video channels on the different platforms, bless his family and those he cherishes. May you and Terry both keep him in your heart. Amen.

He was right about FBI

It's still hard to believe this guy made all this alone. Imagine if things went different and God sent him to work on IT research and development instead. With the right people to guide and help him, we could've get some major breakthroughs.

4:24 Thank you for the warning and for keeping in mind people with epilepsy or problems looking at flashing lights. For anyone with such problems, just remove your eyes before the 4:30 mark. Pop em right out.

Thank you for covering this masterpiece. This is beyond inspiring.

You know you're a nerd when you can say : "I know my ways arround TempleOS"

I used to watch his live streams sometimes, and he ran templeOS on QEMU. Edit: I'm seeing screenshots of both. I guess I caught him at a time he decided to be a true linux power user.

Terry like John Nash, was a genius with a catch. RIP terry, see you in heaven with the big guy one day.

I want to have this running on bare metal one day, as God and Terry intended. This is too cool how could I not

RIP Terry Davis, brilliant man

petition to put terry a davis in the computer history museum

he even made his own version of C for this thing like sometimes you gotta wonder if it really was gods 3rd temple

Rest in peace Terry. He was a true genius and that's why he left so early, heaven always takes the best of us earlier than it should.

I had some experience with C++ and C and ASM using BareBones Wiki, let me just say making hello world was hard enough. Larry built a whole new unix like OS with a functional language using its own compiler that's almost ludicrous to think about.

When someone mentioned VMWare to Terry back in 2008, he hadn't even heard of it, and even though he had absolutely no clue what it was, he said something about how it was probably slow and caused limitations. From his comment, it seemed like he didn't even realize VMWare was used for virtualization. What I did find with a quick search was a video where he's running TempleOS on QEMU. Maybe he used VMWare once he learned what it was, but this is what I know.

I still hope that someday someone does a PhD research crossover between psych and cs to look at TempleOS. I imagine there is a lot to be learned about schizophrenia in that code.

As a younger person learning programming, I would earnestly believe that the ultimate test of my programming skill would be to build an OS from scratch from the ground up. Now that I have seen someone capable of such an intense feat, I don't mind giving that title to Terry Davis. He has certainly earned it.

He had a dictionary inside a novel OS without network support. Just try to think how he got all those words inside. AND A BIBLE! Typed all manually? Found a way to mount another storage into it? It's just amazing level of commitment.

1:52 this actually is like growing a tree, chopping it and then building the house :)

As a person with schizophrenia I completely understand why he did what he did and said what he said.

I had never seen anyone explain it like you did, where you actually showed some of the features that stood out as you went through. Usually, if they do talk about the OS itself, they just look at it and say it looks weird, click on some stuff, then give up and talk about how weird terry was, like you said they do. I had heard some people recently say that Temple OS isn't anything particularly impressive. I don't know enough to disagree with them, but I think you do, so it makes me happy to see it appreciated in that kind of way from someone knowledgeable. May Terry rest in peace.

The year of the TempleOS desktop is coming

Thanks for the great adventure. I find Terry's OS a lot simpler and reasonable than any OS I've seen. In modern monster OS-es like Linux there are a lot of magic that is hard to understand until you face some specific problems. But here everything is pure. I understand that it is not as capable as modern systems and sooner or later during development you face problems that requires to either rewrite the whole project from scratch or use a duct tape.

I just want to add that in the newer versions of qemu, the -soundhw flag has been removed so you have to type this now. qemu-system-x86_64 ${your.disk} -m 1G -audiodev ${backend},id=${yourid} -machine pcspk-audiodev=${yourid} example: qemu-system-x86_64 Temple.disk -m 1G -audiodev pa,id=0 -machine pcspk-audiodev=0 you can use pa for pulseaudio or spice if you have a spice server configured. Hope this helps.

HOLY cow that NPC at 23:41 was FAST. There is one more thing I would add and that is one neat feature of Holy C which is the switch statement without the range check. "If you can improve the C language that shows you are a genius." - Terry

23:50 The bloat code and assets of modern games are the real monsters.

RIP Terry. One of the greats.