DR DOS 9.0: Modern Clean-Room Reimplementation of Classic Operating System
By
Tomte
Sketches a bagel but doesn't bake it through.
Summary
DR DOS 9.0 is a modern, clean-room reimplementation of the original DR DOS operating system from 1988, which was developed by Digital Research Inc. as a technically superior alternative to MS-DOS. The article presents DR DOS as carrying forward the legacy of Gary Kildall's groundbreaking work, offering a faithful recreation that honors the original vision while creating a legally unencumbered DOS for enthusiasts, developers, and hackers. The latest release is DR DOS 9.0 Revision 357.
Key quotes
· 3 pulledDR DOS® carries forward the legacy of Gary Kildall's groundbreaking work in operating systems.
Originally developed by Digital Research Inc. in 1988, DR DOS was a technically superior alternative to MS-DOS, offering better performance and compatibility.
This is not just another DOS clone. DR DOS® 9.0 is a faithful clean-room reimplementation, built from scratch to honor Kildall's vision while creating a modern, legally unencumbered DOS for the next generation of enthusiasts, developers, and hackers.
You might also wanna read
Unix99r3 Released: UNIX-like Operating System for TI-99/4A Computers
Unix99r3, a UNIX-like operating system for the vintage TI-99/4A computer, has been released. The system supports both emulators (Classic99,
forums.atariage.com·3mo ago
ZX Spectrum BASIC interpreter rebuilt from scratch to run natively in web browsers
A developer has rebuilt the ZX Spectrum's BASIC interpreter from scratch to run in a web browser, without emulating the original Z80 hardwar
boingboing.net·1d ago
MacSurf brings CSS3, ES5 JavaScript, and native HTTPS to Classic Mac OS 9 PowerPC systems
MacSurf is an early-alpha web browser for Classic Mac OS 9 PowerPC systems (like the G3 iMac) that brings modern web technologies — CSS3, ES
github.com·2d ago
Context Free Tests C64 vs Raspberry Pi 4 in Practical Coding Focus Comparison
This article examines the concept of when computers peaked for focused, distraction-free coding. It compares the Commodore 64 (which boots s
theoasisbbs.com·4d ago
ReactOS Achieves Experimental ARM64 Support, Boots on Apple Silicon via QEMU
ReactOS, the open-source project aiming for binary compatibility with Microsoft Windows, has achieved experimental support for running on 64
phoronix.com·5d ago
16-Byte x86 Assembly Demo Released at Outline Demoparty 2026
A nostalgic exploration of creating a 16-byte x86 assembly program (a tiny intro) for an old IBM PC with a monochrome green monitor. The aut