We sold computers for a living in the 80's and 90's. Our first was in 1982, a dual floppy, don't remember how much ram and a 10" orange monitor, cost $5,000. Everybody we met wanted one, so we became a dealer for a brand, then we built them ourselves for almost 20 years. High end graphics and cad systems, many of them we custom built for the programmers at Microsoft.
I remember when in about 1983 or 84 we put a 5MB hard drive in a dual floppy machine. Everybody that came into our store and saw it, said, "what would you need all that storage for?" Lol, still laugh about it today.
The hard drive event would have been in about ‘85. That was my employer’s PC that we’d upgraded from dual floppy to single floppy and the HDD.
I bought an original IBM-PC 5150 in the Spring of ‘82 on a student discount plan. Took out a small loan, I think the system was about $3500. 2 FDDs, 64k RAM soldered to the motherboard, 5151 green screen monitor and card. Another 64k on a Quadram Quadboard that also got me a serial port, a parallel port, and a clock. Epson MX-80 dot matrix printer.
Those were the days! Hey, I no longer had to go to the computer center on campus!
I had a 80MB HDD once and thought I would never need that much. And the cost. Now a 32GB flash drive can be less $10.