<Li> 2010--First hard drive manufactured by using the Advanced Format of 4,096 bytes a block ("4K") instead of 512 bytes a block </Li> <Li> 2011--First 4.0 terabyte hard drive (Seagate) </Li> <Li> 2011--Floods hit many hard drive factories . Predictions of a worldwide shortage of hard disk drives cause prices to double . </Li> <Li> 2012--Western Digital announces the first 2.5 - inch, 5 mm thick drive, and the first 2.5 - inch, 7 mm thick drive with two platters (Western Digital) </Li>

When was the first hard disk drive invented