Questions tagged [dos]

The DOS family of operating systems for x86-based computers, especially IBM PC compatibles. DO NOT USE for non-x86 systems with ‘DOS’ in the name!

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2answers
3k views

How do DOS games like DOOM benefit from a PCI graphics card?

The original DOOM and its derivatives (DOOM II, Heretic, Hexen) were early 90s 3D games released at a time when DOS PCs usually had ISA bus Super VGA graphics cards. In the following few years, PCs ...
10
votes
0answers
305 views

Assembler where output file was executable WHILE including the source code

I seem to remember using an assembler with the following interesting workflow: You'd write an assembly language file and assemble it. The output overwrote your source code by placing the executable ...
12
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3answers
5k views

How can I tell whether a DOS-looking exe. requires a 32-bit CPU to run?

Is there some simple method for determining if a DOS (or OS/2, or Windows etc.) binary (.exe or .dll) is 16-bit or 32-bit? The Linux file command just says "executable". I want to ...
9
votes
3answers
418 views

What software used Turbo Vision back in its prime time?

Turbo Vision, Borland’s text-mode widget toolkit, is fairly widely known by those old enough to remember it, and apparently quite influential: it gave rise to a number of ports and reimplementations (...
25
votes
3answers
5k views

Why does DOS ask for the current date and time upon booting?

In most versions of DOS, when they are started from a medium that lacks an AUTOEXEC.BAT file, the very first thing COMMAND.COM does is ask the user to confirm the current date and time: Starting PC ...
8
votes
5answers
2k views

Any tools (that actually work) for viewing PDF files in FreeDOS?

I recently installed FreeDOS on an old laptop and then transferred some dosbox based GOG games I own to the FreeDOS installation. The problem is the manuals for these games is in PDF format and I ...
15
votes
2answers
1k views

Emulate a text-mode DOS program using a Unix terminal

Is it possible to run a text-mode DOS program in an emulator under a Unix-like operating system (Linux/*BSD/macOS) such that DOS text-mode input and output is done on a Unix terminal instead of a ...
3
votes
1answer
234 views

What is the *BEAST* event-recording software grammar?

I recently recovered a data-set my father (a biology professor) recorded at UC Berkeley in the 90s on Stickleback mating behaviors. He says the data was recorded using the "open-source BEAST ...
5
votes
1answer
5k views

Accessing a USB drive from DOS

I am setting up a new development computer with FreeDOS and can boot off the SATA or USB drive. This is my first new computer with sophisticated UEFI (I have CSM enabled). If I boot from the USB I ...
5
votes
2answers
297 views

Mysterious things happening to stack when running a debug session

When I run a debug session using FreeDOS and DEBUG.EXE, I get a session like the following. I've added a description of what I saw as annotation on the image. Each step, I've printed out the stack ...
9
votes
2answers
1k views

Why might I get “drive not ready” when formatting a floppy?

I have a 3.5" floppy drive in an IBM XT 286 (5162). I can boot DOS from the floppy just fine but when I try to run FORMAT, it always says that the disk drive is not ready. Specifically: A:\>...
17
votes
5answers
5k views

What is most appropriate choice for DOS for a 1990 80386 PC?

I plan to install Windows 3.0 and PC/GEOS on top of DOS. Plus I will install numerous games from the 1984-1992 timeframe. Some of the later games will require >640K RAM and make use of an EMM driver. ...