The great grand daddy of them all, the punched card is missing too. They were first used in 1725 to first control textile looms but later in the computer industry.
One of my favorite bits of archaic tech is the Wire Recorder:
http://en.m.wikipedia.org/wiki/Wire_recording
It's also worth noting they seem to have left of the phonograph here.
Or how about the phonograph cylinder? Remember those? Anybody?
The circle on the bottom is a film reel (what movies were originally recorded and watched on) and the red rectangle is an 8 track tape (what zombiestitcher said above, it was used for music)
http://en.m.wikipedia.org/wiki/Wire_recording
It's also worth noting they seem to have left of the phonograph here.
Or how about the phonograph cylinder? Remember those? Anybody?