[Real Cynic No More]

Don’t you think that may have been kilobytes?

[Mom MD]

from 1986

computer hard drives 1986 from www.computerhistory.org
The IBM PC-RT had 1 MB of RAM, a 1.2- megabyte floppy disk drive, and a 40 MB hard drive. It performed 2 million instructions per second, but ...

i’m pretty sure i i is the difference between a megabyte and a kilobyte

[Dr. Sivana]

Don’t you think that may have been kilobytes?

I don't know if you were just joking, but 20 MB and 40 MB would be correct. Heck, a typical 5 1/4" floppy diskette in '86 was either 360 KB (DS/DD) or 1.2 MB (DS/high density).

The reference hard drive in those days would be the venerable 20 megabyte Seagate ST225. The 40 MB version was the ST251.

There were MANY other brands in those days, but Seagate was the dominant player for a low headache, OK performance option. It was still MFM, which wasa pain to set up, and much slower than newer xIDE and various flavors of SCSI, but MUCH faster than a hard drive or other solutions (e.g. Coleco Adam's Digital Data Pack).