This is my first computer. For the Gen Z's this is not a musical instrument, is not connected to the internet, doesn't use batteries and doesn't even need electricity. Don't laugh, this brilliant device invented around 1620 and known in the US as a "slipstick" put men on the moon and brought them back alive.
For scale, the round object is called a dime; US currency, that could be used to buy 10 pieces of Bazooka Joe bubble gum. It could also be used in a pay phone . . . what's a pay phone? That's another discussion