A brief history of the hard drive
Hard disk drives sure have come a long way, baby. In the 1950s, storage hardware was measured in feet—and in tons. Today, we have flash drives, microdrives, and onboard solid-state drives that weigh almost nothing, hold gigabytes of data and cost (compared to the 1950s) very little.
http://rss.macworld.com/click.phdo?i=24ce013c8da6779ec03676bec37b84bc