DOS

MS-DOS, FreeDOS, and the real-mode era.

• C:\ After Midnight: A DOS Chronicle
• CONFIG.SYS as Architecture
• Interrupts as User Interface
• Mode 13h in Turbo Pascal: Graphics Programming Without Illusions
• Mode X in Turbo Pascal, Part 1: Planar Memory and Pages
• Mode X in Turbo Pascal, Part 2: Primitives and Clipping
• Mode X in Turbo Pascal, Part 3: Sprites and Palette Cycling
• Mode X in Turbo Pascal, Part 4: Tilemaps and Streaming
• Turbo Pascal Before the Web: The IDE That Trained a Generation
• Turbo Pascal History Through Tooling Decisions
• Turbo Pascal Units as Architecture, Not Just Reuse
• Writing Turbo Pascal in 2025
• Batch File Wizardry