Western Digital

Western Digital Corporation

File:WesternDigitalLogo.jpg
Company type	Public (NYSE: WDC)
Industry	Computer
Founded	April 23, 1970
Headquarters	Lake Forest, California , United States
Key people	Thomas E. Pardun (Chairman)
Products	Hard disk
Revenue	$4.34 billion USD (2006)
Net income	$395 million USD (2006)
Number of employees	24,750 (2007)
Website	www.westerndigital.com

Western Digital Corporation (NYSE: WDC) (often abbreviated to WD) is a manufacturer of computer hard disks, and has a long history in the electronics industry as an IC maker and a storage products company. Western Digital was founded on April 23, 1970 as General Digital, initially (and briefly) a manufacturer of MOS semiconductor test equipment. It rapidly became a specialty semiconductor maker, with startup capital provided by several individual investors and industrial giant Emerson Electric. In July, 1971, they adopted their current name, had moved to Newport Beach, California, and soon after introduced their first product, the WD1402A UART. Western Digital is currently the second largest hard drive company, after Seagate Technology.

History

1970s

Through the early years of the 1970s, WDC made their money by selling calculator chips; by 1975, they were the largest independent calculator chip maker in the world. The oil crisis of the mid-1970s and the bankruptcy of its biggest calculator customer, Bowmar Instrument, changed its fortunes, however. In 1976, Western Digital declared Chapter 11 bankruptcy. After this, Emerson withdrew their support of the company, and WDC was on its own.

WDC introduced several landmark products during this time, including the MCP-1600 multi-chip, microcoded CPU (used, among other things, to implement DEC's LSI-11 system and their own Pascal MicroEngine microcomputer which ran the UCSD p-System Version III and UCSD Pascal), and a string of single-chip floppy disk drive controller chips, notably the WD1771.

1980s

The WD1771 and its kin were WDC's first entry into the data storage industry; by the early 1980s, they were making hard disk controllers, and in 1983, they won the contract to provide IBM with controllers for the PC/AT. That controller, the WD1003, became the basis of the ATA interface (which WDC developed along with Compaq and Control Data's MPI division, now owned by Seagate) starting in 1986.

In the mid-to-late 1980s, WDC also dabbled in graphics cards (through their Paradise subsidiary, purchased 1986), core logic chipsets (by purchasing Faraday Electronics Inc. in 1987), and networking (WD8003, WD8013 Ethernet and WD8003S StarLAN). They did well (especially Paradise, which produced one of the best VGA cards of the era), but storage-related chips and disk controllers were their biggest moneymakers. In 1986, they introduced the WD33C93 single-chip SCSI interface, which was used in the first 16-bit bus mastering SCSI controller, the WD7000 "FASST"; in 1987 they introduced the WD37C65, a single-chip implementation of the PC/AT's floppy disk controller circuitry, and the grandfather of modern super I/O chips; in 1988 they introduced the WD42C22 "Vanilla", the first single-chip ATA hard disk controller.

1988 also brought what would be the biggest change in WDC's history. That year, WDC bought the hard drive production assets of PC hardware maker Tandon; the first products of that union under WDC's own name were the "Centaur" series of ATA and XT attachment drives.

1990s

Western Digital Caviar280 (WDAC280-32) - 85.3 MB

By 1991, things were starting to slow down, as the PC industry moved from ST-506 and ESDI drives to ATA and SCSI, and thus were buying fewer hard disk controller boards. That year saw the rise of WDC's Caviar drives, brand new designs that used the latest in embedded servo and computerized diagnostic systems.

Eventually, Caviar drives were selling so well that WDC started to dispose of its other divisions. Paradise was sold to Philips (it has since disappeared), their networking and floppy drive controller divisions went to SMC Networks, and their SCSI chip business went to market leader Adaptec. Around 1995 the technological lead that the Caviar drives had enjoyed was eclipsed by newer offerings from other companies, especially Quantum, and WDC fell into a slump.

Products and ideas of this time didn't go far; the Portfolio drive (a 3-inch form factor model, developed with JT Storage) was a flop, as was the SDX hard disk to CD-ROM interface. WDC's drives started to slip further behind products by other makers, and quality began to suffer; system builders and PC enthusiasts who used to recommend WDC above all else were going to the competition, particularly Maxtor, whose products had improved significantly by the late 1990s.

To attempt to turn the tide, in 1998, WDC recruited the help of IBM. This agreement gave WDC the rights to use certain IBM technologies, including giant magneto-resistive (GMR) heads, and access to IBM production facilities. The result was the Expert line of drives, introduced in early 1999. The idea worked, and WDC regained much respect in the press and among users, even despite a recall in 2000 (which was due to bad motor driver chips). WDC has since broken ties to IBM.

The latest video cards from WD were a Pipeline 64 graphics media accelerator card (WD9710 Rocketchip) and Tasmania 3D PCI 3D video accelerator (based on the Yamaha YGV612 Rendering Polygon Accelerator). At 1996 Paradise Graphics subsidiary was sold to Philips Semiconductors which reestablised Paradise name.

Present day

Western Digital WD740GD Raptor - 10.000 U/min - 74 GB

WDC is also notable because it is the first manufacturer which, in 2001, offered mainstream ATA hard disk drives with 8 MB (8 MiB) of cache buffer. At that time most desktop hard disk drives (HDDs) had 2 MB of buffer. WDC labeled the 8 MB models as "Special Edition" and distinguished them with the JB code (the 2 MB models had the BB code). The first 8 MB cache drive was the 100 GB WD1000JB and soon models with capacities from 40 GB to 250 GB and more followed. WDC advertised the JB models as a good choice for cost-effective file servers.

In 2003, WD acquired most of the assets of bankrupt hard drive one-time market leading magnetic read-write head developer Read-Rite Corporation. In the same year, WDC offered the first 10,000 rpm Serial ATA HDD: The WD360GD "Raptor" with a capacity of 36 GB and an average access time of less than 6 milliseconds. Soon, the 74 GB WD740GD, which is also much quieter, followed and in 2005 Western Digital released the 150 GB version, the WD1500. As of 2004 the "Raptor" drives have 5 years of warranty, making them a more attractive choice for inexpensive storage servers, where a large number of drives in constant use increases the likelihood of a drive failure. In 2006, Western Digital introduced its MyBook line of mass market external hard drives that feature a compact book-like design. On the 7th October 2007 Western Digital released several editions of a single 1 TB hard drive - the largest in its MyBook line.

In 2007 Western Digital adopted perpendicular recording technology in its line of notebook and desktop drives. This allowed it to produce notebook and desktop drives in the largest classes of the time. Western Digital also started to produce the energy efficient GP (Green Power) range of drives notable for their very low power consumption and heat dissipation but surprisingly good performance.

On April 21, 2008, Western Digital announced the next generation of its 10,000 RPM SATA Raptor series of hard drives. The new drives, called WD VelociRaptor, feature 300 GB capacity and 2.5-inch platters enclosed in the IcePack™, a 3.5-inch mounting frame with a built-in heat sink. Western Digital claims the new drives are 35 percent faster than the previous generation Raptors.

Warranty

Recently, WD sells many hard drives with a warranty of one or three years included in the retail price, but they offer the customer the option of purchasing a longer (two- or three-year) warranty on their web site.

High performance Raptor drives still come with a five year warranty.

Key innovations

Western Digital is responsible for a number of innovations, including

• c.1971 – WD1402A, the first single-chip UART
• c.1976 – WD1771, the first single-chip floppy disk controller
• 1981 – WD1010, the first single-chip ST-506 controller
• 1983 – WD1003 hard disk controller, predecessor to ATA
• 1986 – Co-developed ATA with Compaq and Control Data
• 1986 – WD33C93, one of the first SCSI interface chips
• 1987 – WD7000, first bus-mastering ISA SCSI controller
• 1987 – WD37C65, first single-chip PC/AT-compatible floppy disk controller
• 1988 – WD42C22, first single-chip ATA hard disk controller
• 1990 – Caviar drives introduced
• 2001 – the first mass market IDE drive with an 8 MB buffer
• 2003 – the first SATA drive running at 10,000 rpm
• 2007 – First manufacturer of 250 and 320 GB laptop drives, third manufacturer to break the 750 GB mark on desktop drives., second manufacturer of 1TB hard drive.
• 2008 – WD Releases the VelociRaptor, a 300GB 10,000RPM drive in a 2.5" form factor. The VelociRaptor has twice the capacity of the 150GB Raptor X and has better performance. The drive is mounted on a heatsink sled dubbed the "IcePak", and this sled also doubles as a 3.5" mount. Removing the sled voids the warranty.

See also

• Products
  • WD Raptor
  • MyBook
  • Dual-Option Backup External Hard Drives

• Competitors
  • Fujitsu
  • Hitachi GST
  • Maxtor - Now a part of Seagate
  • Samsung
  • Seagate
  • Toshiba

References

• "Years of Innovation: The History of Western Digital" (PDF). Western Digital. Archived from the original (pdf) on 1997-11-10.
• Great Microprocessors of the Past and Present by John Bayko

External links

• Jumper settings for Western Digital Hard Disk
• Western Digital website