Claim: IBM invented the hard disk drive in 1982.
Evidence: Inventions by IBM include the automated teller machine -LRB- ATM -RRB- , the PC , the floppy disk , the hard disk drive , the magnetic stripe card , the relational database , the SQL programming language , the UPC barcode , and dynamic random-access memory -LRB- DRAM -RRB-.
Introduced by IBM in 1956 , HDDs became the dominant secondary storage device for general-purpose computers by the early 1960s.