That reminds me of the first external hard drive I ever bought for my Mac, around 1985. It was the
128K Mac computer and the only storage it had was the hard shell "floppy" disks. These, if I recall correctly, could hold 128
kilobytes (KB), and later became double-sided and could hold 256 KB. Swapping disks was how many of the programs were loaded. Clearly large external storage was needed. Hence, my 10
megabyte (MB) external hard drive purchase. It was somewhere in the neighborhood of $400 and about the same size as the old-style desktop cradle
telephone. By comparison to the floppy disks, it was blazingly fast and had enormous capacity, equivalent to about 40 double-sided floppies. Ahh, yes, technology.