Building an OS - 1 - Hello world 

"so far our operating system does nothing and does it perfectly" top tier programming here

This is the most complete video I've ever seen on building an OS. Thank you, sir! Don't stop, please

What a fantastic series of videos, they really tickle my tech curiousity. Everything I've been puzzled by is explained so well. Thank you for making these

it's really rare to find quality videos in this topic. Thank you sir for this excellent demo 🙏

loved this! back in 1985 i built an 8-bit z80 computer on breadboard (with a 1k static-ram chip) and had to program the RAM chip using 8 dip-switches (no assember) just in pure binary! it took hours to write code similar to this. after writing the binary code to RAM, i would then send a signal to the RES pin on the CPU to begin the instruction pointer (IP) at zero and begin execution of the code. all i had was an array of 8 led's as my output display. the code I wrote made the led's flash from left to right and vice versa, amazing days! this brings it all back! 😊 ps. i had to clock the z80 cpu at only 1 instruction per second (1hz) to be able to see the led lights move and the z80 assembly for that code was something like: l0: ld b,7 ld a,128 l1: out 0,a rra djnz l1 ld b,7 l2: rla out 0,a djnz l2 jp l0 (program size was just 21 bytes lol!)

If anything RU-vid does good from time to time, is that he suggested this to me. I highly valuate this type of content, and as a developer and a lover of coding I have a big respect to this type of talented people, its way out of my league to do such things, even that like 25 years ago when started coding using basic 1, I had such ideas 😅, now you know the life took me, and have to pay the bills so I am a web dev, thankfully I am still in the coding family. Big love and respect bro ❤

Absolutely adding this to the study list. I feel like this would probably be a great reference for delving further into CompSci

This is brilliant. All the other tutorials are messy file trees, horrible code, and hard to follow. This is perfect, easy to do, and the teacher is great. Keep going dude!

just discovered this series , need to binge watch that now. This is so cool

I'm literally into tears 😭 ... Overwhelmed by grateful emotions ☺️😌 ... Can't believe you put it for free on RU-vid! Thank You man, I can't thank you enough... !❣️🙏🏾🙏🏾

i can say nothing more about this video other the "its perfect", the best OSDev tutorial i've seen yet. AMAZING

It's really good to see people having fun with Assembly like this. I know we live in the age of languages like Python and Assembly can be a frustrating, painfully slow, counterintuitive language at times that tests your patience and confidence when things don't work, but I think everyone who enjoys programming should learn to work with at least one instruction set and experiment with it like this. Just mess around, play with it. At the end of the day we're just kids playing with really complicated toys and making them do tricks when we program anyway.

Excellent Tutorial. I love how you explain everything you are doing, this is a much better tutorial then any of the others I have seen!

I can already see that this is going to be easy with this tutorial! PLEASE DON'T STOP, KEEP UP THE GOOD WORK!

this video would have saved me days of research if i knew it before i got into operating systems. Very consise and coherent, 10/10

A stack is LIFO (last-in-first-out), not FIFO. The FIFO equivalent is called a queue.

Thank you VERY much for this series. I have mentioned wanting to get into OS design many times on other programming groups and been laughed at and mocked because why am I not in the kitchen making dinner lol. I've been writing in C and recently learning assembly, so now I will go back to them with an OS (after a few more years of this).

You explained the most complicated subject like it's a piece of cake. Hats off to you man !! This video deserves millions of likes ☘☘

This is a wonderful video, friend! Thank you for doing these videos, I'm loving them!

Nice video... Looking forward to see how this progresses... Made 4 yrs ago, I'll check your channel for other updates... Thanks for the start. 👌

This is gold , Thank you for the efforts

That is the most complex "Hello, World" tutorial I've ever seen. Thank you for that

Amazing video, I managed to follow along, and I even learned some more asm. I have always been kind annoyed with there being very few resources online for learning asm, so I barely know any, so nice to finally find a good resource.

That is one of the best tutorials of a complex subject I have ever watched. Kudos! 👏

the title is literally the content of the the video, you are amazing :) , dont stop never

Thank you for making this tutorial. Now I learned a lot of things that will be useful for me

Terry Davis would be proud. Now everyone can homebrew their own temple OS.

Randomly youtube recommended me this video. I wont try to build an OS but I always wondered how it works, thank you

this video is really good i never seen a complete video like this

This is the perfect level of explanation for me, thanks!

I love this, please keep doing this kind of tutorial

This made me actually understand kind of how an is works and I already have an idea of how a kernel works too

Cool Thank you so much you are the best person who has explained assembly:)

YOU ARE A LEGEND ONLY THIS ONE WORKED PERFECTLY!!!!! THANK YOU!!!!

The best video for begginers about this topic!! Excellent!

this probably needed so much work thanks for the effort!

This is truly fascinating tutorial, congratulation

Absolutely amazing video! Thank you loads!

Hi! I thought this was great! I hope you'll make more some day. All the best from a fellow programmer(mostly c# :))!

Hey Nanobyte, you are one of the best and most underrated OSDev channels on RU-vid! You even inspired me to create a OSDev channel. Just need to find a easy to use video editor and it's done! BTW I am a Legacy BIOS Windows 10 user (and I will change to Linux in 2025)

Best for creating os. Please do more videos!

Thank you so much for these videos!!

Greatest stuff that i seen ever, man, continue plea

Thanks a lot sir, amazing explaination

just amazing!!!! in 17:11 u mentioned stack as fifo but it should be like LIFO right?

I've been searching for ages to find something like this

Very underrated

This is great, thanks for teaching us. I thought it would have been funny if you used nano to build your os

Great video, thank you. Subscribed!

That was amazing man!

I really enjoy technical low-level programming projects that present the necessary theory and definitions. I hope to see you building a compiler for a toy language from scratch one day. Or a webbrowser :)

This is awesome. I watch it, and get like 50% of it. Then I search for while and I understand it more. But it was till I start building my own floppy disk OS bootloader to understand it on 100% Thank you very much for this. It made me eager to learn more!

I like this guy, he hesitates and still gets it wrong (13:29), but all in all good tutorial

Thanks so much for these videos!

Wow amazing tutorials, I have previously written assembly bootloaders and a basic operating system more like a shell tbh and no one really explained about the syntax of certain assembly things like $ and $$, I knew I could jump to $ for a hlt but never what the $ - $$ did in the times loop and now I do!

This channel is amazing. Keep the great work, mate!

The best Tutorial guy!

Well structure. Thank you very much

Thats's fck'n awesome, i'm writting a compiler and the video is sooooo usefull

Thanks! That made good sense.

just amazing

waiting for the next video !!!!

truly brilliant !

Finally, someone who appreciates micro. I absolutely love it.

Great video, thank you very much :)

The best youtube channel ❤❤

Badass dude really badass, this is Bill Gates level of making an OS. I will be looking forward to this. I am an Windows and Linux user so i play around with virtual machines so this should come out simple for me. Can't wait to make my own OS

wow i just found this its awesome .

Rollercoaster Tycoon 2 was written entirely in Assembler. I cant even imagine how much work the guy put in this to make it happen.

cool videos thank you for the information

This is so cool!

I love you man! Greetings from Serbia.

This video is gold for people who want to learn something new everyday, but unfortunately we live in a world where a tiktoker easily gets millions of followers but a youtuber hardly gets any recognition.

brooooo really thanksssss keep going

This tutorials are really awesome ! i just wanted to ask, is knowledge of Data structures and Algorithms are necessary for building an OS

Do you know how you could load this onto a usb and have it working on bare metal? I tried on linux using dd command, it does find boot sector but no string prints

Very easy to follow instructions and explanations. One factual error: a stack is a LIFO not a FIFO.

its pure information, tnx u

Hey quick question does this playlist include the making of your own kernel or some other kernel has been used.

When using VMware, it's actually faster to use PXE than going all the way to using floppy images, you just make an empty VM with a network card and you setup your Ubuntu as a BootP server + NFS server (in the old Sun style). From there, just reboot the VM, everything else is automatic, you can jump to 64-bit mode much earlier, even before you display anything. By the way, ISO images are also easy to generate and somewhat more "portable" than floppy images.

Very good videos dude, congrats! The stack is LIFO Last In First Out not FIFO 😂

Quality overview

great job bellissimo molto interessante

Great Video

Thank You very much

im your 700th sub!!

Good video Sir ! Btw do you recommend any books about things I should learn to better understand your tutorials ?

When you started talking about memory segmentation and referencing a memory location, is that what is known or referred to as virtual memory?

Wow, everything in 23 minutes, it took me several days, weeks, to find info and figure out how to create a bootloader exactly like this 17 years ago in the 2000s internet

17:04 *LIFO (Last In First Out). The FIFO is more for stream actions.

very informative

I actually followed this tutorial on android😂 Excellent tutorial 👍❤

This is GOLD

i couldnt get qemu installed on kali purple so i used Virtualbox else everything was GREAT!

How can I use this to create a bootable stick? It works with qemu, but not with Virtualbox, and when right-clicking on main_floppy.img, choosing 'create bootable stick and then trying to boot from the stick, my laptop tells me it has an invalid partition table. In spite of that, I love the video and look forward to seeing the other parts of the series as soon as I got my problems fixed!

seems good. although, in diagram @9:29, i don't remember index registers (si,di), bp, sp, having a 8bit half counetrpart, they are 16bit only.

No jk, fastest subscription I have done in my life. Literally 1 min after seeing the thumbnail.

17:06 should it not be a filo manner?The stack works like first in last out or?

What are the set of API's that you have used , please mention all of it

How to install this system on raspberry pi?