@mwichary

Saw your article about keyboards. One minor thing to add.

In the 1990s and early 2000s, the Pause key would typically pause the video game you were playing, while showing only a small “paused” banner while otherwise leaving the screen undisturbed. Useful if you wanted to photograph the screen.

Esc would also pause the game, but would also overlay a menu (new game, save, quit, etc).

Most games these days still have the traditional Esc function, but no longer recognize Pause.