Less than 10 years ago, I would need almost 1400 of these to carry what now fits on my keyring.
Repondicium antiquipotacium-(commonly referred to as the 3.5 inch floppy disc): "This particular species evolved fairly quickly from much larger ancestors. First seen in the mid 1980s, examples are rare, but by the mid 1990s, they became very abundant. They became very scarce and almost extinct by the early part of the next century. Some speculate the recordable compact disk had a hand in the demise of the Repondicium antiquipotacium."
Visit www.heartlessmachine.com for more modern fossils.
What extinct gadget do you actually miss?