FasterModeSwitch: Is It Really?
The History of a Security Hole
Warning: If you do not care for the finer points of x86 architecture, please stop reading right now—in the interest of your own ……
A Sound Card Before Its Time
A mysterious full-length sound card recently arrived at the OS/2 Museum. It was clearly manufactured by IBM in 1985, and sports ……
How Fast Is a PS/2 Keyboard?
A few weeks ago, an interesting question cropped up: How fast is a PS/2 keyboard? That is to say, how quickly can it send scan c……
ANOMALY: meaningless REX prefix used
While trying to get work done, I was confronted by several disturbing messages printed on the console of a 64-bit Windows 7 sys……
A Brief History of Unreal Mode
After a run-in with a particularly crazy manifestation of unreal mode (Flat Assembler, or fasm ), I decided to dig deeper into……
PC DOS 1.0, but Not Quite
Last week a most interesting image of a 160K disk arrived at the OS/2 Museum. The files on the disk image are rather old. When t……