dos

A new development brings partial multicore support to the DOS operating system, enabling better performance on modern multi-core processors.

Microsoft has released the earliest known DOS source code, including 86-DOS 1.00 kernel and utilities, along with developer documentation.

A detailed write-up of a 16-byte x86 real-mode DOS demo that generates an infinite Sierpinski fractal in video memory while simultaneously producing audio output, showcasing extreme algorithmic density in the demoscene tradition.

A developer recounts tracking down a 34-year-old NULL-pointer bug in the EtherSlip DOS packet driver using Open Watcom’s heap-corruption sentinel.

A detailed technical analysis of Quake performance on various 1990s CPUs and configurations, comparing Intel, Cyrix, AMD chips, and memory types under DOS and Windows 95.

A technical deep-dive into the historical reasons for creating WinQuake, a Windows-native version of Quake, and how it achieved performance close to the DOS version on Windows 95 and NT.

This article details how id Software engineered Quake's executable to run on both DOS and Windows 95 by utilizing the Windows 95 DPMI server and TCP/IP stack, enabling better multiplayer networking.