Western Digital Brand Guidelines: General Digital, the WD1003 & a Hard-Drive-Only WD

Test equipment, calculator chips and a floppy controller.

Western Digital began on 23 April 1970 as General Digital Corporation, founded by Alvin B. Phillips, then a Motorola employee, and his partner Joseph Baia, English Wikipedia says. Its first business was test equipment for MOS chips. It started in Newport Beach, California, soon moved to Santa Ana, and became a specialist semiconductor maker with start-up money from individual investors and the industrial group Emerson Electric. Around July 1971 it took the name Western Digital and introduced its first product, the WD1402A UART, a chip that handles serial communication.

In the early 1970s the company made and sold calculator chips. English Wikipedia says that by 1975 it was the largest independent maker of them, and that the oil crisis and the bankruptcy of its biggest calculator customer, Bowmar Instrument, turned that around: in 1976 Western Digital filed for Chapter XI bankruptcy protection, and Emerson withdrew its support. It had already opened a plant in Malaysia in 1973, first to make semiconductors.

The company’s route into storage ran through a chip. In 1976 it launched the FD1771, one of the first single-chip floppy disk formatter and controller chips, which Wikipedia calls its first entry into data storage. By the early 1980s it made hard disk controllers, and in 1983 it won the contract to supply IBM with controllers for the PC/AT. That controller, the WD1003, became the basis of the ATA interface, which Western Digital developed with Compaq and Control Data from 1986, and for most of the 1980s it brought in the bulk of the company’s business, Wikipedia says.

The same period saw a spree of buying. Western Digital acquired the graphics-card maker Paradise Systems in 1986, the SCSI chip company ADSI the same year and the chipset maker Faraday Electronics in 1987, and sold network and storage chips under its own name.

From Tandon’s factories to the colour-coded drive.

What English Wikipedia calls the biggest change in the company’s history came in 1988, when Western Digital bought the hard-drive production assets of the PC maker Tandon. Its first drives under its own name were the Centaur series, and in 1991 came the Caviar drives. As those sold, the company let its other divisions go: Paradise went to Philips, networking and floppy-controller lines to SMC and the SCSI chip business to Future Domain. In 1994 it began making hard drives at its Malaysian factory.

The middle of the 1990s was harder, and English Wikipedia describes a slump in which its drives fell behind rivals. A 1998 agreement with IBM gave Western Digital access to IBM drive-head technology and production, and the result was the Expert line of 1999. The Raptor, a 10,000 rpm Serial ATA drive, followed in 2003, the year the company bought most of the assets of the head maker Read-Rite; the media maker Komag followed in 2007.

Consumers met the brand through named and coloured lines. The My Book external drives arrived in 2006 with what Wikipedia calls a compact, book-like design, alongside My Passport and WD Elements. Internal drives were sorted by colour according to use: the Green line for low power, which was folded into Blue in 2015, and the Purple line for surveillance recorders, announced in February 2014. In June 2020, after a lawsuit over the use of shingled magnetic recording in its Red drives for network storage, the company announced a separate Red Plus name for models using conventional recording.

Two large purchases reshaped the company. Western Digital completed its acquisition of Hitachi’s drive business, HGST, in March 2012; Chinese regulators required HGST to be run separately until October 2015, and the HGST brand was phased out in 2018, its Ultrastar data-centre drives continuing under Western Digital. In May 2016 it acquired SanDisk, adding flash memory, and in April 2017 it moved its headquarters from Irvine to HGST’s base in San Jose. English Wikipedia says the logo was redesigned in 2004 to focus on the initials WD.

How memory makers present themselves.

Memory chips are hard to show. A finished DRAM or flash die is a sliver of silicon sealed inside a black package, and the companies that make them sell mostly to other manufacturers rather than to the public. So memory makers tend to build their visual identity from the stages around the chip: the wafer, the module, the drive and the place where it all ends up.

The wafer is the most common image. A polished disc covered in a tight grid of identical dies, often lit so that the surface breaks into bands of colour, says “scale” and “precision” without needing a product name. Close-ups follow the chip outward: DRAM modules with rows of packages along a green board, SSD circuit boards with a controller and flash packages side by side, and cross-section diagrams that show memory cells stacked in layers, the shorthand for 3D NAND.

The factory is the second theme. Cleanroom corridors, staff in full-body suits and long rows of wafer-handling equipment appear in annual reports, recruitment pages and listing documents, usually photographed in cool, even light. At the other end of the chain come data-centre racks, banks of servers and drives that show where the memory is put to work.

Trade shows give the category its public stage. Memory and storage makers present new parts at events such as FMS, the Flash Memory Summit, and Computex in Taipei, where stands mix wafer displays, product cases and technical posters. Across these settings the typical register is a clean sans, a cool or dark palette with one bright accent, and diagrams in place of lifestyle photography; the guides in this series look at how each maker works within, or departs from, that pattern.

A hard-drive company again, under two letters.

The flash years ended in a split. On 24 February 2025 Western Digital spun off its flash memory business as Sandisk Corporation, English Wikipedia says, taking with it the flash products previously sold under the WD name and leaving Western Digital focused on hard disk drives. Until then it had made its flash chips in factories shared with Kioxia, the former Toshiba memory business, in Japan; merger talks between the two were called off in October 2023.

A new identity followed a year later. On 1 February 2026 the company introduced a new logo and began trading under the name WD, keeping Western Digital Corporation as its legal name. Punto Informatico, writing on 17 February 2026, reported that WD was now the official name and that the logo came with the slogan “We drive certainty in the AI era”, part of a shift towards enterprise customers after the Sandisk spin-off. At an Innovation Day event on 3 February 2026, Pulse 2.0 reported, WD said its 40TB UltraSMR drive was in qualification with hyperscale customers and set out plans for heat-assisted magnetic recording. On 19 February 2026 it moved the SanDisk Professional drives under the G-DRIVE brand, and its website now notes that SanDisk Professional hard drives “are now G-DRIVE”.

Where the drives are made has shifted over time. English Wikipedia says that in July 2018 the company announced plans to close its hard-disk plant in Kuala Lumpur, leaving it with two drive factories in Thailand. Its website states the vision “to unleash the power and value of data” and lists five values: customers, results, connection, excellence and innovation.

For a design guide, Western Digital shows how a long-lived technology name can shrink to its initials once the company narrows to one product; compare SanDisk and Kioxia. For this guide we use a platter navy, cool steel and mist with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Western Digital’s identity on hand — save it to a board in the Made Good inspiration library.