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WHO DISCOVERED " HARD DISK " ?
The hard disk was invented on September 13, 1956 by IBM team led by Rey Johnson (considered as "father" of the disk drive). Earlier hard disk drives were large and cumbersome devices. A 5 or 20 megabyte hard disk capacity was considered large in early 70 and 80's.

There are several different types of interface for hard drives. The most common is the IDE or SATA interface, which is found on most home desktop PC's.


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