Omnimaga
General Discussion => Technology and Development => Computer Programming => Topic started by: josh landers on April 10, 2014, 01:13:58 pm
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Yes you read that right! They released it last moth on the computer history museum site, along with word for dos text editor software. You can compile and build this OS but can not release it for commercial use, this was done as a "starting" point for upcoming programmers to learn how personal computers are made. Lots of funny readmes by microsoft employees!
PRINT
The infamous background file printing utility which
fools you into thinking MS-DOS can do something it
really can't.
- from a readme in MS-DOS 2.0
Programed in ASM.
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Hehe, that's cool.
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Sweet! Now
everyone can make a dos-based operating system. Of course x86 asm is not for everyone. I am having a hard time understanding it myself.
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that's actually pretty cool :D
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Yep that's very cool for those who want to study and mess with x86 asm.
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That is awesome. I have to wonder if anybody will actually make a new OS entirely based on DOS?
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This is cool! I might have to dust off my limited x86 knowledge and see if I can understand it!
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Isn't DOS 16 bit x86 though ?
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This is really cool. Someone could indeed make a new GUI for DOS, or a new OS based on it. In regards to DOS being 16 bit, I think it might've made a 32 bit released before it was discontinued. The x86 architecture is backwards compatible anyways IIRC. In fact, you can actually upgrade windows from a very early version to windows 8 even on modern machines.
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Yes I know that's possible. I don't know if modern PCs support 16 bits, but I know 16, 32 and 64 bits are separate modes in the CPU.
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If an old version of Windows that is 16 bits works on a current generation machine (which I've seen in a Youtube vid) this would suggest that modern PC's do indeed support 16 bit mode.
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I guess so.
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This is pretty awesome, but that is a lot of assembly O.O
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Judging from the terms you may not distribute ms dos nor derivative works, so if you make a gui for it it will be only for you to use.
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Judging from the terms you may not distribute ms dos nor derivative works, so if you make a gui for it it will be only for you to use.
Well, you could make it into a patch, then you are free to distribute it.
This can even be done in an installer that automatically downloads DOS and applies the patch.
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FYI all x86 CPUs support the 16 bit mode. Nowadays the common way to implement it is through hardware emulation (read: it looks like normal operation but it's slower than 32 or 64 bit modes would be) by using microcode instructions. They basically have a CPU inside the CPU that executes bigger instructions as a series of smaller instructions. As such, they take several cycles to complete, but since modern CPUs are several hundred times faster than a 33 MHz machine, it shouldn't be an issue.
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Oh nice. If this micro code the thing that emulates CISC on a RISC too ?
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Isn't DOS 16 bit x86 though ?
Yes but i think a person need only buy a 16 bit processer for it to work, or just ajust the code to be 32 bit.
Judging from the terms you may not distribute ms dos nor derivative works, so if you make a gui for it it will be only for you to use.
Also right, Judging from the terms you may not distribute ms dos nor derivative works, so if you make a gui for it it will be only for you to use.
Well, you could make it into a patch, then you are free to distribute it.
This can even be done in an installer that automatically downloads DOS and applies the patch.
Incorrect, you can not do that. Its not TI-care.org, its MS-care.org... ;)
MICROSOFT RESEARCH LICENSE AGREEMENT | Microsoft DOS V1.1 and V2.0
These license terms are an agreement between Microsoft Corporation and you. Please read them. They apply to the software named above, which includes the media on which you received it, if any.
By using the software, you accept these terms. If you do not accept them, do not use the software.
If you comply with these license terms, you have the rights below.
1. SOFTWARE USE RIGHTS.You may use, copy, compile, and create Derivative Works of the software, and run the software and Derivative Works on simulators or hardware solely for non-commercial research, experimentation, and educational purposes. Examples of non-commercial uses are teaching, academic research, public demonstrations, and personal experimentation. “Derivative Works” means modifications to the software, in source code or object code form, made by you pursuant to this agreement.
- You may copy and refer to any documentation provided as part of the software.
- You may not distribute or publish the software or Derivative Works.
- You may not use or test the software to provide a commercial service unless Microsoft permits you to do so under another agreement.
- You may publish and present papers or articles on the results of your research, and while distribution of all or substantial portions of the software is not permitted, you may include in any such publication or presentation an excerpt of up to fifty (50) lines of code for illustration purposes.
2. TERM. This agreement will continue indefinitely unless terminated as provided herein. Notwithstanding the foregoing, Microsoft may, in its sole discretion, terminate this agreement without cause upon thirty (30) days written notice. Upon termination, the licenses granted to you in this agreement will terminate as well.
3. SCOPE OF LICENSE. The software is licensed, not sold. This agreement only gives you some rights to use the software, and you may use the software only as expressly permitted in this agreement. Microsoft reserves all other rights. You may not transfer the software or this agreement to any third party. If you create Derivative Works, you grant to Microsoft a non-exclusive, perpetual, irrevocable, royalty-free, assignable, sublicenseable license to reproduce, distribute, publicly display, modify, use, make, have made, import, and sell such Derivative Works.
4. EXPORT RESTRICTIONS. The software is subject to United States export laws and regulations. You must comply with all domestic and international export laws and regulations that apply to the software. These laws include restrictions on destinations, end users and end use. For additional information, see www.microsoft.com/exporting.
5. ENTIRE AGREEMENT. This agreement is the entire agreement for the software.
6. APPLICABLE LAW. This Agreement is governed by and construed in accordance with the laws of the state of Washington, without reference to its choice of law principles to the contrary. Each party hereby consents to the jurisdiction and venue of the state and federal courts located in King County, Washington, with regard to any suit or claim arising under or by reason of this Agreement.
7. DISCLAIMER OF WARRANTY. The software is licensed “as-is.” You bear the risk of using it. Microsoft gives no express warranties, guarantees or conditions. Microsoft disclaims all implied warranties of merchantability, fitness for a particular purpose, and non-infringement.
[/size]8. LIMITATION ON AND EXCLUSION OF REMEDIES AND DAMAGES. [/color]You can recover from Microsoft and its suppliers only direct damages up to U.S. $5.00. You cannot recover any other damages, including consequential, lost profits, special, indirect or incidental damages. This limitation applies to anything related to the software, including claims for breach of contract, breach of warranty, guarantee or condition, strict liability, negligence, or other tort to the extent permitted by applicable law. It also applies even if Microsoft knew or should have known about the possibility of the damages. The above limitation or exclusion may not apply to you because your country may not allow the exclusion or limitation of incidental, consequential or other damages.
[/size] ::) sorry for the large post[/color]
[/size][/color]
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Wow, those are reallllllllllyyy old versions of DOS. Something newer would have been nice, but it's still super cool. :D
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Microsoft STILL distributes ms dos 6...
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For free though isn't it ?
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They still distribute dos, but not windows xp :P
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Talk about consistence. :P
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Yep, MS-DOS 6 is still in the MSDN store.
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Hmmm I don't like this bit:
If you create Derivative Works, you grant to Microsoft a non-exclusive, perpetual, irrevocable, royalty-free, assignable, sublicenseable license to reproduce, distribute, publicly display, modify, use, make, have made, import, and sell such Derivative Works.
This licence doesn't encourage modifying the os to suit your own needs. If I wanted to make an operating system I'd use a linux kernel instead of modding ms dos.
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Indeed. It's Microsoft after all. But I don't know if they really care.
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Actually, seems they're encouraging usage of the code more for educational and research purposes, as in, a CS teacher might use it to teach assembly and/or how to make a basic operating system. They might even ask their students to e.g. add a custom command into command.com as an assignment.
Microsoft actually cares a lot about education.
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That is nice at least. But the rules are very restrictive for such an old piece of software few people care about.
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..
Microsoft actually cares a lot about education.
Cough, cough, watya mean? as a potential market? that, i might just agree otherwise i'd say they couldn't care less.
That is nice at least. But the rules are very restrictive for such an old piece of software few people care about. 8)
well, some oldie concepts last for centuries, as you well know... so, can we make any use of it? :P
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That is nice at least. But the rules are very restrictive for such an old piece of software few people care about. 8)
Why did you add the sunglasses ? :P
Also, that's true. But the way they put it sounds like "we released the source, you can take a look at it but if you change the smallest byte, it's ours". So there's no use for that. :/
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That is nice at least. But the rules are very restrictive for such an old piece of software few people care about. 8)
Why did you add the sunglasses ? :P
Also, that's true. But the way they put it sounds like "we released the source, you can take a look at it but if you change the smallest byte, it's ours". So there's no use for that. :/
Un-less they are trying to simply see what happens, when they release this. Such as looking at how many people download, how many post, and how many make something.
If I was to use this an make an OS, lets say for an old x86, then only I could use because no one wants a command prompt gui.
Take note that the source for 1.1, and the source for 2.0 is 60% smaller. They added a lot!
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Humm, GUI and command prompt are actually opposite. :P
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They still distribute dos, but not windows xp :P
They still do, for embedded systems only. The "user" version has been discontinued.
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Yeah, it's still pretty useful for single-application computers such as cash registers and such.
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Yeah, it's still pretty useful for single-application computers such as cash registers and such.
I have seen pictures of Chase ATMs still running Windows XP. The fact they put Windows on an ATM makes me much less secure about my money.
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Lately at the mall I saw an ad screen saying Flash 8 stopped working, with XP's default theme. I think they still didn't fixed it.
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At Metro and Super C supermarket/grocery stores over here, the cash register softwares run on Windows XP as well. I think Maxi switched to the same software recently too, but I don't know if they also run XP. The funny thing is that Metro and Super C switched to that software around 2010 or so, so it's entirely possible that they started using XP in 2010 too. O.O
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I do know for a fact that some places still use DOS based software. :P