I remember having to shut down (what was it called back then?!) the HD before shutting down the PC to avoid head damage. I think my massive 12MB HD was around $800 back then. Was told I would never be able to fill it up.. ROTFLMAO...
At least the cassette tapes were a LOT cheaper :P
Cassette tapes! Yes. I used to share a Wang 2500 with others in the math department soooo many years ago....70s I think. I carried all of my programs on a cassette tape that would fit right in my shirt pocket.