My first computer was a Commodore 64 with cassette storage.Mine was cassette tape.
I've occasionally wondered about how much storage is used by different things. The amount of total storage used worldwide is probably an incredibly big number. I'm a big youtube user and I've often thought that they must be using a whole lot of hard drive space. I went through a big progression of hard drives over my life so I've always been interested in them, I've read some of the writings of backblaze and that is also interesting. They likely have a pretty astounding amount of storage themselves.Storage has come quite a ways over the years
Actually I think the amount of files I have saved on hard drives is pretty incredible. I have owned a lot of different computers and used a lot of different computers for work. I had files saved on floppy disks, CDs, zip drives, portable hard drives. About 7 years ago I put a 3TB drive in my desktop computer and copied all of my files to it, then spent a lot of time merging folders and deleting duplicates. At the end of that I had almost 2TB of files. For about 4 years after I was able to backup using external 2TB drives. When I went beyond 2TB I bought a 4TB drive. I'm sure I have a lot of files that aren't of interest to anybody else, and a lot of files that I likely won't ever open again. If only I knew which ones those were.