As the 1980s began, HDDs were a rare and very expensive additional feature on PCs; however by the late 1980s, their cost had been reduced to the point where they were standard on all but the cheapest PC. Most HDDs in the early 1980s were sold to PC end users as an external, add-on subsystem. Unfortunately, a mere 10-Megabytes would still set you back $3,695. Continue reading for more random, yet fascinating, photographs.