The year is 1975.
You’re using a computer (admittedly a very expensive computer) and need a gigantic amount of storage. So you buy a hard drive. The biggest hard drive you can buy. A hard drive so big it can hold… five hundred kilobytes of data.
The drive takes several days to format. But when it’s ready, hoo boy! You’re playing with power!
Isn’t the progress of technology astounding?