Evolution of the Hard drive

First hard drive

Jan 1, 1956

IBM shipped the first hard drive that held a max of 5 mb. Not exact date. http://www.pcworld.com/article/127105/article.html

First Movable Hard Drive

Feb 1, 1963

IBM creates the first movable hard drive that holds 2.4 mb. IBM also made the hard drive smaller than the original. Not exact date. http://www.pcworld.com/article/127105/article.html

Fine Tuning

Mar 1, 1973

IBM makes the hard drive smother. Creating a faster processing. Not exact date. http://www.pcworld.com/article/127105/article.html

New Design

Apr 1, 1979

IBM made a new hard drive called the 3370. It used seven 14 inch platters to hold a total of 571 MB. Not exact date http://www.pcworld.com/article/127105/article.html

First Gigabyte Hard Drive

Apr 1, 1980

IBM creates the first gigabyte hard drive that is the size of a refrigerator. http://www.pcworld.com/article/127105/article.html