640kb should be enough for anyone.

🤣 I don't even remember the days before mb, my first computer had a whole 32 mb of ram and and a 512 mb hard drive. Man, I suppose we shouldn't complain. 

Going from the 5 1/4" floppy to the 3.5" floppy disc was one of my happiest moments. I loved those things.

We started with 2 10 MB HDDs, less HD space than your first computer's ram ;)

I still have a 2 Kb memory expansion 'card' larger than the size of an LP album from an old main frame computer.

Jesus we really have come far with 2Tb on something the size of micro SD cards and for really cheap too, 100 euro for brand name. I remember when you could get a 512 mb on micro SD cards and it blew my mind and it doesn't feel all that long ago. That 2kb is quite a huge piece of tech. 

PC towers were mostly empty space though for much of the 90's in the early 2000's, it's like they didn't wanna shrink them down for some reason until they just started doing it all at once. They kept the tower big for no reason at all in that period when it would have been easy to make them more compact.