- A blast from the past: Disassembling DOS (softwarelitigationconsulting.com)
from Undocumented DOS: A Programmer’s Guide to Reserved MS-DOS Functions and Data Structures (2nd edition, 1994. Copyright (c) Andrew Schulman 1994-2020. All rights reserved. [This nearly-ancient text (along with others from Undocumented DOS and Undocumented Windows) is being presented as a case study in some methodologies of software reverse engineering, applied to mass-market software. Note that this chapter appeared in the 2nd edition of the book, not in the 1st edition.]
- GW-BASIC
- MS-DOS (Wikipedia)
MS-DOS (/ˌɛmˌɛsˈdɒs/ em-es-DOSS; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few operating systems attempting to be compatible with MS-DOS, are sometimes referred to as “DOS” (which is also the generic acronym for disk operating system). MS-DOS was the main operating system for IBM PC compatibles during the 1980s, from which point it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system.
- QBasic