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Updates? IBM. TechnologyAdvice does not include all companies or all types of products available in the marketplace. Winchester disk . [26] Smaller, 2.5-inch drives, are available at up to 2TB for laptops, and 5TB as external drives. A Quarter Century of Disk File Innovation. When did IBM start using microfloppy disk drives? Winchester disk synonyms, Winchester disk pronunciation, Winchester disk translation, English dictionary definition of Winchester disk. By clicking Accept All, you consent to the use of ALL the cookies. Two-to-four 3340 drives could be attached to the IBM System/370 Model 115 processor -- which had been announced concurrently with the 3340 -- providing a storage capacity of up to 280 million bytes. (2021, February 16). The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Two years later in 1984, Apple released their new Macs with the 3.5-inch disk drives and in 1985 Atari adopted the new size. Not only was the sealed disk protected against dirt, the R/W head could also "fly" on a thin air film, very close to the platter. Since they were so large, we divided them into four partitions, each of which we regarded as a separate hardware device -- analogous to a cassette drive (our other main peripheral storage device). The IBM 3340 Direct Access Storage Facility, code-named Winchester, was introduced in March 1973 for use with IBM System/370. The term Winchester comes from an early type of disk drive developed by IBM that had 30MB of fixed storage and 30MB of removable storage; so its inventors called it a Winchester in honor of its 30/30 rifle. The floppy disk was considered a revolutionary device in the "history of computers" due to its portability, which provided a new and easy physical means of transporting data from computer to computer. After the Winchester, lubricated coating became the standard for mechanical hard drive development. In 1961, the IBM 1301 Disk Storage Unit was released, which utilized heads that floated on a thin layer of air. removal storage is known as winchester disk . A floppy disk is called a floppy because the original floppies were 8 inches wide and the disk was made out of vinyl so they were really flimsy and floppy hence came the name floppy. IBM's Winchester disk was a removable cartridge, but the heads and platters were built in a sealed unit and were not separable. IBM first introduced it as a 8-in diskette in 1971. The number of industry participants decreased to six in 2009 and to three in 2013. This rapidly became a standard design within the disk manufacturing community. The 1960s. ThoughtCo. The term for hard disk drive. Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. It featured a smaller, lighter read/write head that was designed to ride on an air film only 18 millionths of an inch . These cookies track visitors across websites and collect information to provide customized ads. Magnetic Head Development specifications of key IBM models (Retrieved on 1.31.15 from: Harker, J., et. 1983 - MAY. Educalingo cookies are used to personalize ads and get web traffic statistics. A disk pack is a layered grouping of hard disk platters (circular, rigid discs coated with a magnetic data storage surface). Help support the museum by buying from the museum shop, Tel : +44 (0) 1223 214446Donations: collection@computinghistory.org.ukOther Email: admin@computinghistory.org.uk. [9] A single head assembly having two heads was used for access to all the platters, yielding an average access time of just under 1 second. The History of Computer Peripherals: From the Floppy Disk to CDs, The First Historical Hobby and Home Computers, Top Inventions From the 1950s Through the 1990s, Create a Database Using Delphi's File Of Typed Files, Biography of Steve Wozniak, Apple Computer Co-Founder, String Types in Delphi (Delphi For Beginners). [58] All three remaining firms still have significant activities in Silicon Valley, but no HDD manufacturing. See also . We also use third-party cookies that help us analyze and understand how you use this website. A disk pack is the core component of a hard disk drive. Since that first disk drive, technological advances have been made at an astonishing rate, with data capacity increasing and size and price decreasing exponentially, year on year. IBM 3340 direct access storage facility (Retrieved on 1.31.15 from. Another term for hard disk drive. Other articles where Winchester disk is discussed: computer: Secondary memory: with fixed platters known as Winchester disksperhaps because the first ones had two 30-megabyte platters, suggesting the Winchester 30-30 rifle. Its removable disk packs were sealed and included the head and arm assembly. Capacities begin at 5 Mbytes to 900 Mbytes. By the 1990s the dollar value of magnetic recording devices produced by companies located in California's "Silicon Valley" exceeded the dollar value of semiconductor devices produced there leading some to suggest that a more appropriate name for this area would be "Iron Oxide Valley," after the magnetic material coating the disks. Our editors will review what youve submitted and determine whether to revise the article. Since opening at the end of 2013, over 5,000 children have visited the Centre. By putting the head closer. Omissions? The rest of the operating system was basically a command monitor. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. "* The first 3340 shipments to customers began in November 1973. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. They stored 400kb of data, and later 720K (double-density) and 1.44MB (high-density). The Winchester technology allowed the head to land and take off from the disk media as the disk spun up and down. The Winchester disk drive was first introduced by IBM in 1973 with the initial shipment of the IBM model 3340 disk drive. It had a 20MB capacity on two disk platters. Since 1995, more than 100 tech experts and researchers have kept Webopedias definitions, articles, and study guides up to date. A fixed disk may also refer to the disk platter inside of a hard drive. The IBM PC XT in 1983, included an internal standard 10MB hard disk drive and IBM's version of Xebec's hard disk drive controller, and soon thereafter internal hard disk drives proliferated on personal computers, one popular type was the ST506/ST412 hard drive and MFM interface. A floppy disk or floppy diskette (sometimes casually referred to as a floppy or diskette) is a type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a fabric that removes dust particles from the spinning disk. 1974 - IBM 62GV Gulliver, introduced the Swinging Arm Actuator, adopted for all HDD in the 1980s. In 1953, engineers in IBMs California-based laboratory invented the very first hard drive. The IBM 3340 Direct Access Storage Facility, code-named Winchester, was introduced in March 1973 for use with IBM System/370. With a load of less than 20 grams, the ferrite read/write head patented by team member Mike Warner started and stopped in contact with the disk on a dedicated landing zone but flew over the disk on an air bearing 18 microinches thick between the magnetic head and spinning disk. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". In 1971, IBM introduced the first "memory disk," better known today as the "floppy disk." Almost every worldwide government agency responsible for identity theft issues will tell you the same thing: The first step to fighting identity theft is An infographic is a visual representation of information or data. 1TB External Hard Drive is introduced. The display of third-party trademarks and trade names on this site does not necessarily indicate any affiliation or the endorsement of PCMag. Hard drives of today Primary storage (also known as main memory ) is the component of the computer that holds data , programs and instructions that are currently in use. One interesting story about the 5 1/4-inch floppy disk was the way the disk size was decided. The first IBM "disk pack" introduced as the IBM 1311 in 1963 had a capacity of just 2 MB, each pack with 6 double-sided platters. The 1980s saw the minicomputer age plateau as PCs were introduced. Answer (1 of 4): The Wikipedia article History of hard disk drives does a great job. We used floppy disks and cassettes mostly as paper tape replacements, but we also appreciated and exploited the random access nature of disks. Each hard drive plater is divided . Sony Electronics announces the 3.5 inch floppy disk and drive, double-sided, double . They were expensive but they were fast . A hard drive can be an internal or external device. Wang wanted a smaller floppy disk and drive to use with their desktop computers. The term for hard disk drive. "History of the Floppy Disk." The Acorn DFS was a sideways ROM which was fitted in one of the ROM sockets. The 3340 also used error correction. This technology and its derivatives remained the sta. Also this year, IBM released the 3370 model, which was the first to use thin film heads. The term Winchester comes from an early type of disk drive developed by IBM that had 30 MB of fixed storage and 30MB of removable storage; so its inventors called it a Winchester in honor of its 30/30 rifle. These disk drives could be added to older PC models. PrairieTek released the first 2.5-inch hard drive in 1988, designed for use in notebook computers. This was in conjunction with the introduction of the Model 1890 pump-action rifle. https://www.thoughtco.com/invention-of-the-floppy-disk-1991405 (accessed March 4, 2023). This website uses cookies to improve your experience while you navigate through the website. Most hard disk drives in the early 1980s were sold to PC end users by systems integrators such as the Corvus Disk System or the systems manufacturer such as the Apple ProFile. . These floppies were encased in hard plastic, but the name stayed the same. IBM 3340 Direct Access Storage Facility, 1973, https://www-03.ibm.com/ibm/history/exhibits/storage/storage_magnetic.html, http://www-03.ibm.com/ibm/history/exhibits/storage/storage_3340.html, IBM 3340 and 3350 Disk Drives Oral History Panel, Advanced ferrite disk heads oral history panel, Haughton, Ken (Kenneth E.) oral history, http://www.thefreelibrary.com/Al+Shuqart+Remembers.-a059628939, Warner, M. Flying magnetic transducer assembly having three rails, Frush, Donald Irwin. Computer data was written to and read from the disk's surface. Here we take a look back at the evolution of the hard drive as it grew from 5MB to 4TB. . The SHIP utility is supplied so you can place the heads in your system over an unused portion of the Winchester disk. In 1980, IBM produced the first gigabyte-capacity disk drive, the 3380. [6] As of August2020[update], desktop hard disk drives typically had a capacity of 1 to 8 terabytes, with the largest-capacity drives reaching 20 terabytes (single-disk drives, "dual" drives are available up to 24TB). An informal generic term for floating head magnetic disk drives in which the read-write head planes over the disk surface on an air cushion. The biggest surprise at Comdex/Fall'89 in removable Winchester disks came from Syquest with a 175MB disk. In a span of seven years, 1983 to 1990, Singapore became the single largest location of HDD production, amounting to 55% of worldwide production. Hard drives continued to become smaller with the launch of the Integra Peripherals 1.8-inch disk in 1991 and the HP Kittyhawk 1.3-inch hard drive in 1992. [54]:Table 7 In the 1980s US firms, beginning with Seagate, began to shift production to Singapore and then other locations in southeast Asia. Even a 1.3-inch hard drive, about the size of a matchbox, was introduced. The first removable hard drive was created in 1963. The 3340 was developed in San Jose under the leadership of Ken Haughton. The disk drive grabs the floppy by its center and spins it like a record inside its housing. "Winchester disk" . Stevens, Louis D. Data Storage on Hard Magnetic Disks in Eric D Daniel, C. Denis Mee, Mark H. Clark, eds. The cookies is used to store the user consent for the cookies in the category "Necessary". IBM introduced the memory disk, or floppy disk, which was an 8-inch floppy plastic disk coated with iron oxide. Project head Kenneth Haughton named it after the Winchester 30-30 rifle because it was planned to have two 30 MB . Led by Control Data, Diablo Systems, CalComp and Memorex, the OEM segment reached $631 million in 1979, but still well below the $2.8 billion associated with captive production.[16]. 1983: The Apple Motorola 68000 Lisa with 1 megabyte RAM is launched. Its removable disk packs were sealed and included the head and arm assembly. Access time was 25 millisecond and data transferred at 885 kB/s. A disk pack is a layered grouping of hard disk platters (circular, rigid discs coated with a magnetic data storage surface). In 1961 IBM introduced the model 1311 disk drive, which was about the size of a washing machine and stored two million characters on a removable disk "pack." . As well as being sealed and having low-mass, lightly-loaded heads, the Winchester disks had lubricated surfaces on which . The IBM 3340 Direct Access Storage Facility, code-named Winchester, was introduced in March 1973 for use with IBM System/370. Memorex shipped the first HDD, the Memorex 630, in 1968, plug compatible to an IBM model 2311 marking the beginning of independent competition (Plug Compatible Manufacturers or PCMs) for HDDs attached to IBM systems. The technology has been adopted by many manufacturers. What are the Disadvantages of compact disk? Not only was the sealed disk protected against dirt, the R/W head could also fly on a thin air film, very close to the platter. Unit production peaked in 2010 at about 650 million units and has been in a slow decline since then. IBM's 3340 Winchester disk system, introduced in 1973, was the first HDD to use a sealed head/disk assembly, which substantially improved performance and is now standard. the disk surface to .000008 inch-a height one-thousandth of the head-to-disk distance in the RAMAC drive. The term Winchester comes from an early type of disk drive developed by IBM that had 30MB of fixed storage and 30MB of removable storage; so its inventors called it a Winchester in honor of its 30/30 rifle. Another term for hard disk drive. This page was last edited on 27 February 2023, at 05:17. In 1969, IBM charged San Jose project manager Kenneth E. Haughton with developing a direct access storage facility that matched the performance of the high-end IBM 3330 system at a price attractive to low-end System/370 computer customers. The new Winchester hard disk drive was a revolutionary device, which revolutionised the way hard disks work and are built to the presence day. Another term for hard disk drive. It was withdrawn in 1984. What made this drive significant is the technique where the read/write heads would rise or lift off from the disk while the disk increased and lowered when the disk decelerated. From beginning and into the early 1980s manufacturing was mainly by US firms in the United States at locations such as Silicon Valley, Los Angeles, Minnesota and Oklahoma City. The drive had two platters and could store 10 MB of data. your Winchester disk if those that are preset do not meet your needs. . Before we get into hard drives you might want to check out jam thrill speakers for some great speakers that sound amazing! Mateosian is currently a review editor at IEEE Micro in Berkeley, CA. It is both a . Also in 1973, IBM introduced the IBM 3340 "Winchester" disk drive and the 3348 data module, the first significant commercial use of low mass and low load heads with lubricated platters and the last IBM disk drive with removable media. Developed between 1979 and 1981, the Datamaster was an all-in-one desktop system for word processing. What equipment is necessary for safe securement for people who use their wheelchair as a vehicle seat? Following a development effort that began in the summer of 1969, the IBM 3340 disk unit was introduced in March 1973 with an advanced disk technology known as "Winchester."* The first 3340 shipments to customers began in November 1973. It was followed in 1969 by the Memorex 660, an IBM 2314 compatible, which was OEM'ed to DEC and resold as the RP02. Capacity of hard drives continued to increase towards the end of the decade, with the first 3TB hard drives to be released by Seagate and Western Digital in 2010. What is also known as Winchester disk? profiles, Storage [13] The name 'Winchester' and some derivatives are still common in some non-English speaking countries to generally refer to any hard disks (e.g. The Seagate company was founded in 1979 and IBM introduced its "Piccolo" drive, storing 64MB over eight disks. In 1973, IBM introduced the IBM 3340 "Winchester" disk drive, the first significant commercial use of low mass and low load heads with lubricated platters. Here are a few highlights from the early years: Winchester entered the shotshell market in 1886 with Rival brand ammo in 10, 12, 14, 16 and 20 gauge. 1 What is the primary feature of a Winchester disk? All Rights Reserved. Although modern disk drives are faster and hold more data, the basic technology is the same, so Winchester has become synonymous with hard. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Spurred on by the RAMAC series' success at high profile venues, like the 1960 Olympic Winter Games, IBM made more headway. Winchester was an OLD hard drive. Since you probably have not altered the hard disk drive yourself due to the nature of your question, the D: drive is used by many manufacturers to serve as the recovery disks. A shoebox-sized 5.25-inch Winchester was introduced in 1980, and an industry was born. Find out inside PCMag's comprehensive tech and computer-related encyclopedia. After numerous references to it as the 30-30, it was nicknamed the "Winchester" because of its resemblance to the similar caliber of a popular Winchester rifle dating . Bellis, Mary. Hard disk drives where introduced by IBM in 1956, as stated on Wikipedia "HDDs were introduced in 1956 as data storage for an IBM real-time transaction processing computer" (Wikipedia). ", 1-2 of Which is a better replacement for a floppy disk? 1980: The 5 1/2" Winchester disk drive floppy is created. 1980s The era of home computing Disaster struck Winchester in 1348-49 when the Black Death arrived, brought in from mainland Europe by migrating Asian black rats. Mary Bellis covered inventions and inventors for ThoughtCo for 18 years. These cookies ensure basic functionalities and security features of the website, anonymously. Our operating system had a set of logical devices (source input, listing output, error output, binary output, etc.) In 1976, the 5 1/4" flexible disk drive and diskette was developed by Alan Shugart for Wang Laboratories. Most people use the C: drive for the Windows operating system and installing programs. "Disc-storage innovations keep coming while manufacturers ponder user needs". What is the primary feature of a Winchester disk? History of the Floppy Disk. Also in 1961, Bryant Computer Products introduced its 4000 series disk drives. Winchester Disk. Flash-based USB-thumb drives finally were a practical and popular replacement, that supported traditional file systems and all common usage scenarios of floppy disks. Cuzner, Dodman, Heath, & Rigbey}, Source: Disk/Trend Report, Rigid Disk Drive for 1981 and 1990, Disk/Trend Report - Rigid Disk Drives, October 1989, Gartner/Dataquest, Market Share and Forecast: Hard Disk Drives, Worldwide, 2001-2010, Chapter 2, (c) 2006. . Three versions of the removable IBM 3348 Data Module were sold, one with 35 megabyte capacity, another with 70 megabytes, the third also had 70 megabytes, but with 500 kilobytes under separate fixed heads for faster access. In 1974 IBM introduced the "Swinging arm" actuator, made possible because Winchester recording heads function well when skewed to the recorded tracks. What are the conflicts in A Christmas Carol? Winchester technology The name given to the design approach used in the IBM 3340 disk drive, which was introduced in 1973. There were some conditional commands (like IF DISK) for use in batch files. Another term for hard disk drive. Winchester disks were so named after the 30-30 Winchester rifle because the early Winchester disk systems had two 30-MB disks sealed together with the disk drive. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Reviewing the history of the disk drive market in 1998, industry analyst Disk/Trend president James Porter described the 1980 introduction of the Seagate ST506 5.25-inch 5MB unit as the model "that created the biggest change in the industry.". It's called a micro Winchester drive, or rigid micro disk drive. Three models were announced, the 3340-A2 with two drives and a controller, the models B2 (two . IBM started using the 720 KB double density 3-inch microfloppy disk on its Convertible laptop computer in 1986 and the 1.44 MB high-density version with the IBM Personal System/2 (PS/2) line in 1987. Analytical cookies are used to understand how visitors interact with the website. In 1973, IBM introduced a new type of hard drive codenamed "Winchester." Its primary distinguishing feature was that the disk heads were not withdrawn completely from the stack . The floppy disk was invented by IBM engineers led by Alan Shugart. A micro Winchester is a memory storage device for personal computers that uses a 5 1/4-inch metal memory disk. The structure of the software evolved from Gary Hornbuckle's 1968 paper "Multiprocessing Monitor for Small Machines" and from PDP8-based systems I worked on at Berkeley Scientific Laboratories (BSL) in the late 1960s. 2021 20 TB HAMR drives were released in January 2021. PCMag.com is a leading authority on technology, delivering lab-based, independent reviews of the latest products and services. The cookie is used to store the user consent for the cookies in the category "Analytics". The name arose because the original 1973 engineering prototype for what later became the IBM 3340 featured two 30-megabyte volumes; 30--30 became "Winchester" when somebody noticed the similarity to the common term for a famous Winchester rifle (in the . The term Winchester comes from an early . First Henry rifles are sold. Computer data was written to and read from the disk's surface. These children deserve a space which is engaging and instructive, where they can feel a sense of adventure, exploration and surprise! You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. A floppy is a circle of magnetic material similar to other kinds of recording tape such as cassette tape, where one or two sides of the disk are used for recording. The Winchester disk file's low-cost head-slider structure made it feasible to use two heads per surface, cutting the stroke length in half. Manufacturing began in California's Silicon Valley in 1957 with IBM's production shipment of the first HDD, the IBM RAMAC 350. Derived from the original specification of a system having two spindles each with a disk capacity of 30 MB, Haughton is reported to have said: "If it's a 30-30, then it must be a Winchester" after the .30-30 Winchester rifle cartridge. 1950s 1970s The 3.5-inch disk drive had a capacity of 16.8GB. IBM released Microdrive in 1998, which stored 340MB of data on one 1-inch disk platter. It demonstrated a significant advance in technology, allowing an increase in recording density to 300 tracks per inch and 5600 bits per inch. with fixed platters known as Winchester disksperhaps because the first ones had two 30-megabyte platters, suggesting the Winchester 30-30 rifle. Bellis, Mary. A Winchester disk is a Disk Stack. Al Shugart identified this new Winchester head as one of the four most significant developments in mass storage. Winchester disk assemblies are put together in clean rooms so even microscopic dust particles do not get on the disk . Nigels other interests include mountain biking and photography. The disks, the disk spindle and bearings, the carriage and the head-arm assemblies were incorporated into a removable sealed cartridge called the IBM 3348 Data Module. The "Winchester" program pioneered the use of low cost, low-mass, low-load, landing heads with lubricated disks, becoming the dominant technology for at least . Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. In 1961, it invented drive heads in the form of airfoils that hovered just above the surface of the disks, which is the standard for today. Source: Why is a floppy disk called floppy? Cybersecurity news and best practices are full of acronyms and abbreviations. The commands had mainly to do with file manipulation. The 1982 NTT "PATTY" HDD was helium filled but was considered a failure at least in part due to helium leakage, see: Last edited on 27 February 2023, at 05:17, "IBM Archives: IBM 1301 disk storage unit", "Data Storage, Data Backup and Storage Virtualization: Walking Through 50 Years of Hard Disk Drive History (slide 6)", "IBM Archives: IBM 3340 direct access storage facility", "Fujitsu to Split Off HDD Business in Reorganization", "Thailand Flooding Cripples Hard-Drive Suppliers", "Western Digital's flood-hit Thailand ops to hurt company", "Farming hard drives: how Backblaze weathered the Thailand drive crisis", "IDF: Western Digital demonstrates 5mm thick hard disks", "Worldwide unit shipments of hard disk drives (HDD) from 1976 to 2022 (in millions)", "Western Digital's 22TB hard drives are available to buy", "HDD competitors enter the market, Bryant Computer Products introduces units storing up to 205MB", "IBM Arrchives: IBM 3380 direct access storage device", "Seagate - Maximize data's potential | Seagate US", "First serial ATA drives hit store shelves", "Seagate Ships Second Serial ATA Drive - ExtremeTech", "Seagate and Intel Demonstrate First Serial ATA Hard Drive at PC Expo; Seagate to Ship Serial ATA Product This Fall | News Archive | Seagate US", "Toshiba: Press Releases 14 December, 2004", "Western Digital shipping high-speed 2TB hard drive", "Transition to Advanced Format 4K Sector Hard Drives", "TDK Finally Crams 2TB on One 3.5-inch HDD Platter", "FTC: Western Digital and Hitachi must give assets and IP rights to Toshiba (update: sale approved)", "Toshiba Expands Product Portfolio with 3.5-Inch Client Hard Disk Drives ", Decades of Proven Research Underpin Seagates Helium Drive, "HGST ships first 6TB helium-filled hard drives", "HGST Announces Radically New, Helium-Filled Hard Disk Drive Platform - HGST", "Helium Drives Cloud Storage", Computer History Museum, Data Storage Milestone, "Seagate Delivers On Technology Milestone: First To Ship Hard Drives Using Next-Generation Shingled Magnetic Recording", "HISTORY: List of 221 Companies in HDD Manufacturing Since 1956", "Sustaining Competitive Advantage in Global Industries: Technological Change and Foreign Assembly in the Hard Disk Drive Industry", "A Quarter Century of Disk File Innovation", A brief history of hard drives, retrieved 2014 Jan 11, Timeline, 50 years of hard drives retrieved 2010 Nov 25, https://en.wikipedia.org/w/index.php?title=History_of_hard_disk_drives&oldid=1141857917. 5 Which is a better replacement for a floppy disk? Disk media diameter was initially 24 inches, but over time it has been reduced to today's 3.5-inch and 2.5-inch standard sizes. 1996 Disk Trend Report Rigid Disk Drives, Figure 2 Unit Shipment Summary, "NEW PRODUCT ANNOUNCEMENT- IBM 305 RAMAC," IBM Announcement Letter 256-114, September 4, 1956, "NEW PRODUCT ANNOUNCEMENT- RAM 650," IBM Announcement Letter 256-117, September 4, 1956, {"Design of a Swinging Arm Actuator for a disk file" J. S. HEATH IBM J. RES. See also Winchester. The term Winchester comes from an early type of disk drive developed by IBM that had 30MB of fixed storage and 30MB of removable storage; so its inventors called it a Winchester in honor of its 30/30 rifle. Named after the 3030 Winchester rifle, as the original device would have had 3030 as its IBM number. There are several different versions but the main version is DFS 0.90 for the Intel 8271 and DFS 2.10 for the WD1770. | Meaning, pronunciation, translations and examples A Winchester disk is a Disk Stack. Its primary distinguishing feature was that the disk heads were not withdrawn completely from the stack of disk platters when the drive was powered down.