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The latest official release of MS-DOS is 6.22. What you have here is an unofficial build from a newer version ripped from Windows 9x builds. And you are correct, the BIOS is emulating the keyboard, mouse and storage. Without emulation nothing would work.

Do you ever use MS-DOS? P.S. I made a mistake. 7.1 is not the latest version and not official. The latest official version is 6.22. Wikipedia misled me. Also may you notice a grammar error at 3:51 “Congulations”

The out of memory issue is probably mostly because you were not using a memory manager and didn't load system and drivers into high memory. Games like Wing Commander need nearly 600KB of the 640KB base memory. I remember having about 4-5 config.sys and autoexec.bat configurations to be able to play everything I could throw at my PC. The most I got was like 612KB free memory but that had nothing more loaded than DOS itself, keyboard, mouse and soundcard initialisation. None of the extras that would make a DOS environment more comfortable. Fun times!

One thing to mention is that motherboards that only suport EFI booting are coming out now. As soon as legacy booting is removed completely; you will not be able to use dos anymore at all on these machines. There are already some laptops out there that can't run dos because of this.

In all fairness, getting "Out of memory" errors is part of normal DOS operation and very common with period-correct DOS machines. Real mode DOS programs are restricted to conventional memory, which is the first 640KB of RAM, and most drivers are also loaded there by default. This is why newer games worked, as they are protected mode (32-bit) software and are able to use extended memory. Just like back in the day, setting up an MS-DOS machine requires a lot of memory management tweaking to free up as much conventional memory as possible. The first common trick HIMEM.SYS (and most XMS memory managers) tries is to use some trickery to load part of the system in HMA (which is a region of memory just above the first megabyte). For compatibility with the original PC, real-mode segment+offset addresses that cross the 1MB boundary wrap arout to the beggining of the memory, but that can be disabled on demand, allowing an extra 64kb of RAM to be use. According to the startup messages HIMEM.SYS was failing to enable that, you might've had more luck with XMGR.SYS. The other trick are UMBs (upper memory blocks). Normally conventional memory is restricted to 640KB, followed by a 384KB addressing space reserved to be mapped to hardware devices (like video ram). EMM386.EXE (and some other memory managers) can scan the upper memory area, find address ranges that are not used by any hardware, and map regular RAM there. DOS can then move parts of itself and load some drivers there, freeing up portions of conventional memory. Since enabling UMBs in DOS setup prevented it from booting, we can assume EMM386.EXE has compatibility issues with newer machines. Using JemmEx (the same memory manager FreeDOS uses by default) could remedy that. One other thing is that your unnoficial distribution of MS-DOS 7.1 loads DOSLFN by default. That can cause some software to believe they are running inside Windows (as DOS isn't supposed to support long file names). This is what probably prevented AIDA16 from running. FreeDOS ships with more modern memory managers, both HMA and UMBs are enabled and working normally and it loads very few drivers by default, so you were getting 618kb of memory out of the box. Sadly I did not see a "mem" output from your MS-DOS install, but it was probably below 520KB, as Duke Nukem didn't work.

Oh my gosh! this channel is great! should have at least 1 million subscribers a long time ago! please don't stop!

Getting the sound to work is also somewhat possible if you either get lucky and your sound hardware has a compatible driver, or you get a PCI SoundBlaster card. Using DosBox is still far more convenient.

Seeing those games again made me smile! Thank you!

Love your content, thanks!!

Imagine having 128 GB of RAM and only being able to use the first 640 KB LOL!!

Been a PC tech guy since DOS 3.3. Neatest thing I'm seeing here is that DOS 7 has a startup logo!

nice job! I use PCem to emulate my old pc from the late 90's. So far I haven't found anything I can't run on it. Not as cool as getting dos to work on modern hardware, but perhaps more functional and with full sound support, unlike other virtual pc programs.

I think the green flickering is due to non SVGA compliance in the video bios. i bet something like sci-tech display doctor would fix that. i cant remember the name of it, but i recall some programs (mostly games) coming with some basic SVGA driver that was developed using DD code.

luv ur channel subed

DOS is using Bios int13 access to disk drives, so it doesn't care what settings you use in your bios (sata, ide, raid, ahci)...

Very impressive and out of box thinking. Great!

If you set your BIOS to legacy mode for storage, that should actually be IDE mode. Though that is also your BIOS sort of emulating an older system, or at least providing translation for older OSes.

Great work

So enjoyable!

I'd imagine the biggest issues with running DOS natively is the amount of things expecting EMS/XMS memory which no longer exists; I expect that's the cause of the Out of Memory errors. There's probably ways to get around that by messing with various config files. I'm guessing FreeDos and other DOS emulators fake this since we obviously have enough RAM in modern PCs. As for actually "running" the core OS, I'm not shocked it ran fine. All x86 CPUs support the "real" operating mode DOS requires to this very day, so there isn't any specific HW reason why modern CPUs can't run DOS natively.

True legend of course with the Half Life Shortcut on the desktop 😎

Amazing channel, Bro! Thanks! of course i used DOS for a long time! Do you remenber Warcraft Orcs & Humans?

Interesting, like!

Awesome videos man. :)

Can you try Windows NT4/2000? Old NT Kernel-Based Windows don't seem to work well with BIOS emulation in Modern UEFI.

The nostalgia is real

You can always use QBASIC to write your own DOS games (you might have to do the full install rather than commands only) or see if you can install and run Borland Turbo C/C++ if you need more firepower and want compiled executables.

I am pretty sure, pretty sure this is the second time I've subscribed, really enjoyed Win98 and this video, let's see if you can get 5k likes, 855 as I comment this. MS-DOS was my first operating system when I was a child, and I continued to use DOS even while Windows as installed, as we did of course, some games were only available in DOS or maybe better in DOS it's so long ago I'm not sure. DIR FTW.

Wolfenstein 3D was like the first 3D game I played on a 1990s era 386 PC back in 1993. I got a pirated copy from a street vendor. Then, a year or so later got into Doom and was addicted to the point of sneaking in some time at my job at the time. I recall getting a cheat guide in the bookstore for both games - internet as we know it today did not exist. Also, there is no support for multicore in MSDOS, right?

U need to enable UMB and Loadigh the devices into the config system and autoexec. That way ull have more memory I. The 640k base ram.

Back in the day I had to run an included expanded memory utility to get some of those games to work. Just type in memaker at c: prompt, if I remember correctly. I also remember some of those games really required a soundcard to work nicely, kind of like video cards today. Wondering if one of those cheep USB SoundBlaster cards would work in DOS? One worked for me in XP playing win 98 games.

one thing about FreeDOS, in general it has some compatibility issues and slowdowns in places where MSDOS works fine, like the long loading time of DOOM, so is a mix match of results for different memory drivers and video

I used DR DOS 7 on my Ryzen PC and it boots with no problem (I installed Win 3.1 as well, installation was completed, but it died). My Pentium 3 does also have DR DOS installed. In my experience, if you are using a CLI operating system, it will operate fine, but from Win 95 and above, something will crash in most cases. Also, you can add a parallel port sound card or your PC like I do.

Well, not setting up himem.sys will sure limit your dos experience.

This brings back memories.

Why didn't you run mem/c to see what was going on in there? Or use Memmaker to get some of that base RAM optimized?

With commander keen you may not had enough of the 640k free (was a common problem back then). dont know how you would fix it now , we used to load the mouse and maybe cd into the memory between 640k and 1m.

that is crazy i didn't think it was possible to install dos on 2020 chipsets

4:43 apparently modern internal sound cards have hardware midi functions so you might be able to get good audio with those

very good

As you discovered- peripherals such as sound cards and mouse drivers can be a problem, as well as disk format. MS-DOS was made before USB so the mouse was typically a PS/2 or serial port device. MS-DOS relied on functions built into the BIOS, functions that are not used by Windows, so I wondered if they were still present in modern computers since they haven't been needed in so long. I don't understand why you were getting memory errors, programs running under MS-DOS typically used extended memory memory if they had to go beyond 640k and this should still be available if you have loaded the appropriate drivers. I wonder if there is something else being loaded in the lower 640k of memory that is using too much of it, of if the BIOS of modern computers somehow maps into some of the extended memory that the old programs expect to be free. (I still have a computer in my closet that boots into MS-DOS 5.)

I didn't see any content like yours. I think you will set a trend that many other channels will follow. But the real will only be you.

You're using MS-DOS 7.10. It has many built-in features that were not present in MS-DOS 6.22, such as USB or MSCDEX drivers. Also, you could've used the native FDISK to partition the drive.

Wonder if MSDOS 6.22 would work on an up to date system.?

You need a high memory driver to use more memory in 16-bit mode.

got dos 6.22 running, but some games don't appear on screen. sierra games like laura bow, i can hear the music, but it's still on dos prompt. i used install, got through it, but if i try to run install again, it says packed file is corrupt. weird...

I don't understand how do you have music in some games? As example the intro of Prince of Persia at 6:30 That not seem to be the PC default sound of intern PC Speaker but maybe it is? Do you need a special driverto make the sound work on this recent PC? (maybe I have skipped an info).

I have a laptop that I bought in Japan years ago (2014?) - (2 graphic cards, 32gb memory etc...) at the time it was one of the best laptops you could buy (quite expensive too) I removed Windows 8.1 and installed Windows 7 (don't remember why I did it), now I have a game called Settlers 2 - (1996) and it actually starts by going to ms-dos and then running the game.

Well the version of DOS I have is IBM PC DOS 7.0. which I believe is equivalent to MS DOS 6.22. I have run it on some later model surplus high end machines, like dual 3G Xeon processor boards. Runs fine. I have several graphical embedded applications built on Boreland C using a third party SVGA driver. Why still DOS? Again these are embedded systems that are a bit too complex for a simple micro controller. Fast boot and DOS is far less likely to randomly crash than any Windows distro. Many industrial control systems still use DOS for these reasons. Security concerns? I have the best security you can get! The networking is not TCP/IP based (will not even support any Internet access) and there are no disk drives exposed. And no working USB ports either which DOS does not even directly support.

Yes, me first pc 486dx4 100mhz and play dune2, Xcom-apocalypse. Now use Dosbox and playing this game today:-)

The key question I have for you based on this being a modern PC from this year, is whether this PC is UEFI-only BIOS (no option for Legacy BIOS). That should not be possible but if it is, I'm greatly interested.

I like how you cut to the chase. Some content creators can take 3x the time to make the same point.

I would like to see Tandy(Radio Shack's) GUI: Desk Mate run on a recent system! It is unlikely since the 3.69 version was proprietary to Tandy.

Legacy Mode in the BIOS means IDE.

I saw in other similar videos that AMD (microcode/BIOS) is more compatible with old OSs like MSDOS and Windows 3.11 / 9x

I would of just made a MS-DOS boot disk and copied over the files over to a fat32 formated HDD using the /s command to have it boot. Then copied over the CD and mouse driver from PhilsComputerLab setup, and his memory config startup menu. Then install all games and play

neat!

Can you try quake? Because there is a file which only dos can open it

You should try loading EMM386 and what not for some games

I wondering if MS DOS is running entirely in L1 and/or L2 CPU cashe without even going to RAM?

with dos you had to load your high programs in correct order to get enough memory.

MS DOS need an ibm compatible bios.

There is a reason they were called IBM pc compatibles. They were meant to be backwards compatible with older systems to a certain extent.

Congrulations! @ 3:51

You should try something that might provide some real results like vista or 7

There is a separate 7.1 installer without Win98?

Tutorial for Windows 7, please..?

You should try running computer viruses in environments they weren't designed for, such as DOS viruses on Win9x (or even 32bit Vista/7/8 that still can run DOS software) or Win9x viruses on NT-based systems. Might provide for some interesting videos.

CP/M next?

Sound is the biggest issue I guess. There are almost no motherboards sold with regular PCI slots(not PCI-e). How did you get the sound in Prince of Persia to work (since you don't have an Adlib/SoundBlaster)?

READ THIS: You have a option in bios/UEFI to activate "legacy" option for your Mouse, that way your mouse would work even if you dont have drivers and the like..... search it up.

I have a machine with win98, xp, 7 and 10 on it.. granted w10 was unusable because it was so slow. , 7 was not much fun either but usable.

Congrulations? (3:51) Don't they mean Congratulations 😛Either way, congratulations for getting it working!

Save your self the trouble. Use freeware DOSbox 0.74. This is a MSDOS emulator that can even run on Windows 11. It uses all of the original DOS commands and comes with instructions as to how to mount virtual drives with your DOS software in them. I can run old Duke Nukem 1.0, the original Wolfenstein, etc.

Windows 1 didn't even work on PC's back in the day. I would maybe try Windows 286 or Windows 386 (prob 386) see how that goes.

The MBR means Master Boot Record, it's not a file system. You need to make a FAT16 partition.

when you are short of memory you are running xms i bet. that is why we used to use boot disks to run games even if our system had enough memory. throw a pci soundblaster at it and use a bootdisk that doesn't turn xms on and it will probably work. a good test would be ultima 7. it has it's own memory manager and does not work with xms on. most sound cards after 1998 or so are soundblaster compatible, and that includes in dos, but you had to boot from another boot disk in allot of cases because the default boot would enable xms which was not compatible in multiple ways. you are hitting a software barrier that can be broken i think.

I wonder if you could get windows 3.1 working...

Windows 95 98 was a dos based graphic surface... From 2000 me xp Windows was in the nt family which is a new os, not using dos, so technically you use dos

I think I have the exact same Monitor and Keyboard. lol.

4:30 - MS-Dust.. Thanks YT Trainslator.. Okay xD

How about windows 3.1

Yes for a long time.

Good morning, I would like to know if I can do this in a Windows 11 machine or Windows 10 machine ? I do not want to run games but my old MSDos Cobol software

Не знал про English Channel !! Ramtech !!!

You need a proper config. Max I ever managed to get was around 630k free RAM and a bit. Lots of tricks involved.

mbr master boot record still got the old versions of ms dos

you gotta install loebs patch to memory or limit memory to 512mb

There is unsloved puzle was left behind. Origunal win 95 not 98 not other , can not run on new pc. Its works but modification is unacceptable.

wolfstein 3D that was a great game

It's too bad the other community of people that need DOS support are rarely represented on YT, namely, old Motorola (and others) radio programming people. A lot of the problem relates to lack of real serial ports.

i actually like dos😃

I’m using the DOS version of KZfaq right now.

out of memory because you need Qemm or memmaker to make more room in 640K space.

MS-DOS would still be practical if they were able to develop new drivers f.o.s.s.

Ah, old, bad days of twaking autoexec.bat and config.sys to move as much stuff as possible outside of the conventional memory. Real-mode games often required more than 550 kB free. It became better in the later period, when games and apps used the "DOS-extender" hack to run themselves in a protected mode, with flat 32-bit memory model accessing many megabytes of RAM.

Yup it's fun. Though I still think using a VM is a greater solution. But yeah DOS is so simple that that is probably why it keeps working on modern hardware almost forever, even on bare metal. But if it's just for the experience of the games and not so much the operating system itself, you're mutch better off with DOSBox anyway, because it's optimized for modern graphics and has configurable CPU cycle speed.

Try and load Commodore 64 basic v2 on modern pc

Enjoy the possibility until it lasts. This will not be possible anymore once x86-S becomes mainstream.