IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. Both the hard disk drive (HDD)...
71 KB (9,377 words) - 04:16, 9 April 2024
tape drives. The commercial usage of hard disk drives (HDD) began in 1957, with the shipment of a production IBM 305 RAMAC system including IBM Model...
44 KB (4,779 words) - 16:59, 29 April 2024
became widely used. Floppy disk variants History of hard disk drives History of IBM magnetic disk drives List of floppy disk formats A Japanese inventor...
60 KB (7,044 words) - 16:29, 13 May 2024
needed] Category IBM articles History of IBM magnetic disk drives IBM Archives Biographies Builders reference room Jim Spohrer, "IBM's service journey:...
208 KB (23,998 words) - 15:41, 24 May 2024
The IBM 2321 Data Cell is a DASD that used tape as its storage medium. See also history of IBM magnetic disk drives. IBM 353: Disk drive for IBM 7030...
170 KB (18,534 words) - 22:20, 8 May 2024
off. Modern HDDs are typically in the form of a small rectangular box. Hard disk drives were introduced by IBM in 1956, and were the dominant secondary...
138 KB (14,062 words) - 22:35, 23 May 2024
Older hard disk drives used iron(III) oxide (Fe2O3) as the magnetic material, but current disks use a cobalt-based alloy. For reliable storage of data, the...
18 KB (2,106 words) - 16:21, 7 May 2024
disk drive (FDD) connected to or inside a computer or other device. The first floppy disks, invented and made by IBM in 1971, had a disk diameter of 8...
78 KB (8,549 words) - 00:35, 23 May 2024
12-bit word of CDC 6000 series peripheral processors, plus 2 parity bits) in the CDC 626 drive. Early IBM tape drives, such as the IBM 727 and IBM 729, were...
36 KB (4,275 words) - 18:57, 24 May 2024
capacity of 400 MB, at the time when the 2311 disk drive only had 7.2 MB. The IBM Data Cell was proposed to fill cost/capacity/speed gap between magnetic tapes—which...
80 KB (8,692 words) - 14:41, 25 April 2024