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 (9,381 words) - 04:54, 6 July 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 (4,844 words) - 10:39, 20 July 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) - 17:05, 9 June 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 (24,045 words) - 08:02, 18 July 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 (18,581 words) - 07:52, 26 June 2024
CD-ROM drive in a similar situation. The X68000 has soft-eject 5¼-inch drives. Some late-generation IBM PS/2 machines had soft-eject 3½-inch disk drives as...
80 KB (8,689 words) - 20:02, 4 July 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
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
as of 2017[update] Linear Tape-Open (LTO) supports continuous data transfer rates of up to 360 MB/s, a rate comparable to hard disk drives. Magnetic-tape...
21 KB (1,715 words) - 15:54, 19 July 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
announced a system using this drive as well, but later changed plans to use 3½-inch diskette drives instead. A magnetic disk in a hard plastic shell was...
51 KB (6,336 words) - 14:29, 22 June 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 (8,689 words) - 10:55, 10 July 2024
Linear Tape-Open (redirect from LTO drives)
extension of the work done by IBM at its Tucson lab during the previous 20 years. In 2000, and around the time of the release of LTO-1, Seagate's magnetic tape...
67 KB (6,293 words) - 11:14, 10 July 2024
of disk failure is not limited only to drives, but also applies to other types of magnetic media. In the late 1990s, Iomega's 100-megabyte Zip disks used...
33 KB (3,998 words) - 02:28, 16 July 2024
The IBM 305 RAMAC was the first commercial computer that used a moving-head hard disk drive (magnetic disk storage) for secondary storage. The system was...
16 KB (1,586 words) - 08:18, 25 January 2024
"Rigid Magnetic Disk Drive Specifications". 1997 DISK/TREND REPORT, RIGID DISK DRIVES. DISK/TREND, Inc. Reference Manual for IBM 3330 Series Disk Storage...
15 KB (1,902 words) - 20:54, 12 October 2023
conventional, magnetic hard disk drive. A similar technology is available on HighPoint's RocketHybrid PCIe card. Solid-state hybrid drives (SSHDs) are based...
192 KB (16,528 words) - 23:13, 8 July 2024
Direct-access storage device (category IBM storage devices)
by IBM to describe devices that allowed random access to data, the main examples being drum memory and hard disk drives. Later, optical disc drives and...
10 KB (1,178 words) - 06:36, 1 April 2023
The IBM Storage product portfolio includes disk, flash, tape, NAS storage products, storage software and services. IBM's approach is to focus on data management...
35 KB (3,733 words) - 16:58, 4 May 2024
A disk read-and-write head is the small part of a disk drive which moves above the disk platter and transforms the platter's magnetic field into electric...
10 KB (1,217 words) - 20:03, 28 February 2024
have fallen into disuse. Early drives are 130 mm and have the size of full-height 130 mm hard-drives (like in the IBM PC XT). 130 mm media looks similar...
15 KB (1,918 words) - 14:42, 16 May 2024
system IBM "Merlin" hard disk drives, see History of IBM magnetic disk drives § IBM 3330 MERLIN, an array of radio telescopes Merlin, a brand of garage...
5 KB (710 words) - 16:45, 4 July 2024
a disk by a disk driver. The earliest disk drives had fixed block sizes (e.g. the IBM 350 disk storage unit (of the late 1950s) block size was 100 six-bit...
38 KB (4,775 words) - 21:07, 9 May 2024
Deskstar (redirect from IBM Deskstar)
Deskstar was the name of a product line of computer hard disk drives. It was originally announced by IBM in October 1994. The line was continued by Hitachi...
10 KB (981 words) - 19:36, 28 January 2024
controller IBM 1627 – Plotter IBM 1311 – Disk drive: Model 3 master drive controlling up to 3–Model 2 slave drives. IBM 1443 – Printer, flying type bar IBM 1405 –...
101 KB (7,818 words) - 04:46, 17 May 2024
Drum memory (redirect from Magnetic drum)
for poising a magnetic head above a rapidly rotating magnetic drum." Flying heads became standard in drums and hard disk drives. Magnetic drum units used...
10 KB (1,233 words) - 21:45, 24 May 2024
streamline IBM by having other investors finance those companies. These included AdStar, dedicated to disk drives and other data storage products; IBM Application...
139 KB (11,790 words) - 22:20, 19 July 2024
computers are usually loaded from the disks as part of the boot process. Early computers predate disk drives, floppy disks, or modern flash storage. Early storage...
11 KB (1,317 words) - 02:28, 6 July 2024
engineering, succeeding the decimal IBM 1620 in that market segment. Typical installations included a 1 megabyte disk drive that stored the operating system...
84 KB (10,272 words) - 00:27, 10 May 2024
two each for 3.5" & 5.25" drives. In the IBM PC family and compatibles, a twist in the cable is used to distinguish disk drives by the socket to which they...
34 KB (3,361 words) - 20:45, 26 June 2024