MUO on MSN

Windows file extensions are mostly stuck at three letters because of this 1980s hardware limit

Somewhere, an ancient file system is still quietly bossing around your PC.
Boing Boing on MSN

The keystroke that hid your game behind a fake spreadsheet

Before multitasking made it easy to control-tab away from a goofing-off page (and when people work in offices with other ...