Hard Drives: 40 MB To 750 GB - 3,500 To 10,000 RPMWe decided to go back in time by 15 years, starting with one of the early IDE hard drives: just 40 MB. We then moved on to a model from the mid-90's (3.2 GB), jumped to a double-digit gigabyte capacity unit (10 GB), and then upgraded to one with a more modern capacity of 60 GB. Finally, we looked at both the largest and fastest hard drives availabl