Disk Operating System (DOS) was the first operating system by Microsoft that dominated the IBM PC compatible market between 1981 and 1995. Do not use this tag for questions about DOSBox, FreeDOS or any later operating system from Microsoft.

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1answer
26 views

Larger MS-DOS Img file?

I am making an operating system based on ms-dos and using a program called win image to edit an ms-dos .img file, the program only lets me inject at total size of 2.88mb worth of files and i would ...
0
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2answers
65 views

How to get a Windows 7 Home Premium copy?

Few days back my hard drive stop working and I don't have any recovery of my operating system. And when I bought this laptop they didn't provide any OS disc with it. I want to know is there any way ...
7
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2answers
1k views

How can I get more low memory with the following setup:

Modules using memory below 1 MB: Name Total = Conventional + Upper Memory -------- ---------------- ---------------- ---------------- MSDOS 14 317 (14K) ...
2
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0answers
327 views

In VMWare Workstation 8, can I print from DOS guest to Windows 7 host's XPS Writer or similar soft printer?

VMWare insists on connecting virtual printer in guest to the serial port and naturally nothing works. Windows allows assigning legacy LPT1 port but it exposed only to DOS on the host and VMWare ...
0
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1answer
810 views

DosBox Booting From HDD Image, FreeDOS Image created with qemu-img.

I'm having trouble booting a HDD image with DosBox. I've only gotten either read errors, or boot failures. The HDD image is a verified working FreeDOS installation, created with qemu-img. The image ...
1
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2answers
505 views

Installing IBM PC DOS 4.0 on VMWare

I'm trying to install IBM PC DOS 4.0 onto a VMWare virtual machine. The machine keeps rebooting, gets to a blank cursor, then reboots again. I've booted a Windows 98 boot disk just fine so it's ...
2
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2answers
167 views

Why did DOS software packages often require a “100% compatible” system?

The system requirements for many software packages for DOS specify an "IBM PC or 100% compatible". Why "100% compatible"? Were there systems at the time that had only partial IBM PC compatibility?
6
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2answers
1k views

Why do “ls” in UNIX and “dir” in DOS have different names?

Why do they have different names for the same command, listing a directory? Surely, they could have talked to each other and agreed on one common name, such as for example cd which is the same for ...
0
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1answer
362 views

Tool for creating system image from DOS (should be USB bootable) ..?

I want to know if there's any decent tool which can be used to create the system image from DOS .. What I specifically want to do is to put the program in my FAT32 formatted USB, then boot the target ...
9
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4answers
436 views

How can I execute my old DOS-only applications on a modern computer?

The first versions of my software that I developed back in 1991 were DOS-only versions that I wrote using Turbo Pascal. At the time, it never occurred to me that I would actually still be selling ...
3
votes
1answer
2k views

Can you send function key commands to DOS from a batch file?

I am new to batch files and I need to write one for a program that runs in DOS. One of the questions on the prompt requires a function key command (i.e. F1, F2, etc). I've read an article that says ...
6
votes
1answer
17k views

DOS Batch file to find “new” files by date

My PC has entered an infinite BSOD loop - but I do have access to a safe-mode command prompt. I'm trying to get an idea of "what changed" that might have triggered this. e.g. I might have gotten a ...
2
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4answers
437 views

How to start DOS on a PC with just HDD (no FDD/CD/USB drives)

Would making a first partition (which FAT?) of 1,44 MB with a bootable image of DOS start the system on a laptop's HDD? or in other words Can one start a laptop without FDD/CD/USB with just ...
0
votes
3answers
196 views

Rescue DOS (probably FAT16) files

I have very old computer with DOS. I need to rescue some files, all application folder, copy it to Windows XP and try to run this application in an emulator like DOSBox. My Windows XP installation ...
4
votes
4answers
16k views

FoxPro 2.6 DOS on Windows 7 64-bit

I support a company that has a very old, mission critical, FoxPro for DOS 2.6 (FPD) application. For variuos reasons the company didn't adapt/migrate their app, which, ironically, has been running ...
1
vote
1answer
443 views

How does 'fc' command works in DOS and how does it work?

DOS had a command fc,which was used to compare the files in binary mode, I am a bit stuck with the concept of comparing the files.Why do we compare the files in binary mode? And how does the fb ...
2
votes
1answer
6k views

How can I send data to the serial port from a Linux shell?

I need to find the linux way of running the following DOS commands: MODE COM1: 9600,N,8,1,P COPY FIRMWARE.COD COM1 Is this possible? I know COM1 in Linux is /dev/ttyS0 but that's about it. How do ...
14
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9answers
51k views

Populating Array in DOS Batch Script

How can I setup an array variable in a DOS batch script? I would like to load it with a list of file names to process. I really would like to keep this as simple as possible. Thank you.
1
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1answer
137 views

How should I partition my hard drive to allow these 4 operating system to be installed?

Here is my situation. I'm currently in the process of attempting to triple-boot (or technically quad-boot I guess) my pc with Windows 7, Ubuntu 10.04 LTS, and Mac OS X Leopard. And I have my pc ...
2
votes
1answer
49 views

Can I install DOS as a lui frontend bootloader?

Hi I was wondering if it's possible to install DOS as a lui frontend bootloader? For example, let's say I have Windows XP, Windows 7, and Ubuntu linux all installed, I want to have my computer boot ...
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1answer
1k views

DOS commands for Epson dot matrix not working

Our Epson dot matrix printer is not printing on the following DOS command.: Type text.txt>prn But it does print perfectly on: open TEXT.txt>File>Print What is the issue here?
1
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2answers
3k views

Run Command Prompt in XP mode in Windows 7

I am trying to run a DOS application (.com) in Windows 7 64bit. It will not run on anything newer than XP. Is there any way? I can set the comand prompt to run in XP compatibility mode? The only ...
10
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5answers
60k views

How can I create bootable DOS usb stick?

I need to use this utility to change one of the parameters of my new WD hard drive: http://support.wdc.com/product/download.asp?groupid=609&sid=113&lang=en It has truly unreadable ...
1
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0answers
119 views

PC only boots from Linux-based media and won't boot from DOS-based media

I have this problem where the PC only seems to boot from a floppy disk or CD if it was created as a Linux-based bootable media. If it was created as a DOS-based bootable media the system just freezes ...
0
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2answers
1k views

32bit / 64bit DOS Available [closed]

Is there any 32bit / 64bit DOS Available?
0
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2answers
131 views

View BSAVE/BLOAD Image File in Windows?

BSAVE files are essentially partial memory dumps from the "old" DOS days. I have some old files created using BSAVE and would like to open them with a windows image editing application...Does anyone ...
2
votes
2answers
1k views

How to split file into floppy within install any software in DOS environment?

I want to split a 2.6 mb file to floppy, is there any dos cmd to help me in pure dos environment. (no application is allowed to install)
2
votes
2answers
789 views

Creating DOS bootable cd

I need to burn a cd which I will boot from to reset a password on Windows Server. I am using Active Password Changer, but I get an error like so: How can I create a "DOS bootable disk"? I have an ...
2
votes
2answers
28k views

Is there a way to append files efficiently using the DOS copy command?

Using the DOS copy command syntax to concatenate files: copy file1.txt+file2.txt all.txt I know I can do this... copy file1.txt+file2.txt file1.txt Is this efficient? Is it doing what I'm ...
0
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3answers
3k views

How to move an old DOS installation to VmWare?

I have an old hard disc running MS-DOS and some very old programs for which I miss the installation discs. Now I want to move the complete content of this hard disc to a VmWare hosted by Windows XP. ...
4
votes
2answers
2k views

DR-DOS free version?

I'm looking for a recent and free version of DR-DOS. It's kind of complicated, and if I have this right: Digital Research made CP/M which was popular, but IBM didn't like the DRI terms and picked ...