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Encyclopedia > Microdrive
IBM 1 GB Microdrive
IBM 1 GB Microdrive

The Microdrive is a brand name for a miniature, 1-inch hard disk designed to fit in a Compact Flash (CF) Type II slot. The release of similar drives by other makers has led to them often being referred to as 'microdrives'. However, 'microdrive' is not a genericized trademark[citation needed] and manufacturers other than IBM up to 2003 and Hitachi after do not officially refer to these drives as Microdrives. Some other companies, such as Sony, have licensed the name and sell re-branded versions. The name Microdrive has been used to designate data storage devices. ... Image File history File links Download high resolution version (1500x1200, 287 KB) Please see the file description page for further information. ... Image File history File links Download high resolution version (1500x1200, 287 KB) Please see the file description page for further information. ... For other uses, see Brand (disambiguation). ... Typical hard drives of the mid-1990s. ... CompactFlash (CF) was originally a type of data storage device, used in portable electronic devices. ... A genericized trademark, generic trade mark, generic descriptor, or proprietary eponym, is a trademark or brand name which has become the colloquial or generic description for a particular class of product or service. ... For other uses, see IBM (disambiguation) and Big Blue. ... Hitachi may refer to: Hitachi (train) trains in Melbourne, Australia. ... Sony Corporation ) is a Japanese multinational corporation and one of the worlds largest media conglomerates with revenue of $66. ...


These drives fit into any CompactFlash II slot; however, they may consume more power than flash memory (currents on the order of 190 mA, peak 310 mA, at 3.3 V) and therefore may not work in some low-power devices (e.g. handheld computers). Nevertheless, they have some benefits over flash memory in terms of the way data is stored and manipulated. Microdrives can store 8 GB or more, but must be formatted for a file system which supports this capacity, such as FAT 32 or NTFS, which may not be supported by older CompactFlash hosts, but it is possible to partition a drive so it will contain a partition less than 4 GB. CompactFlash (CF) was originally a type of data storage device, used in portable electronic devices. ... A USB flash drive. ... This article is about the unit of measurement. ... Formatting a hard drive using MS-DOS Disk formatting is the process of preparing a hard disk or other storage medium for use, including setting up an empty file system. ... For library and office filing systems, see Library classification. ... File Allocation Table (FAT) is a partially patented file system developed by Microsoft for MS-DOS and was the primary file system for consumer versions of Microsoft Windows up to and including Windows Me. ... NTFS is the standard file system of Windows NT, including its later versions Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, and Windows Vista. ... A 32 MB High Speed CompactFlash Type I card CompactFlash (CF) was originally developed as a type of data storage device used in portable electronic devices. ...

Contents

History

The Microdrive was developed and launched in 1999 by IBM with a capacity of 170 MB, which was expanded to 8 GB by 2006. They weigh about 16 g (~1/2 oz), with dimensions of 42.8×36.4×5 mm (1.7×1.4×.2 in). These were the smallest hard drives in the world at the time. From 1999 to 2003 they were known as IBM Microdrives, and from 2003 as Hitachi Microdrives, when Hitachi bought IBM's hard drive division. Microdrive™ was a registered trademark by IBM and Hitachi for each period. Image File history File links Broom_icon. ... This article is about the year. ... For other uses, see IBM (disambiguation) and Big Blue. ... This article is about a unit of data. ... This article is about the unit of measurement. ... For other meanings of gram, see gram (disambiguation). ... This article is about Ounce (unit of mass). ... A millimetre (American spelling: millimeter, symbol mm) is an SI unit of length that is equal to one thousandth of a metre. ... An inch (plural: inches; symbol or abbreviation: in or, sometimes, ″ - a double prime) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. ... The Bass Red Triangle, was the first trademark registered in Britain in 1876. ... For other uses, see IBM (disambiguation) and Big Blue. ... It has been suggested that Hitachi Works be merged into this article or section. ...


IBM initially released a 170 MB and 340 MB model. The next year 512 MB and 1 GB models were announced and became available. In December 2002 Hitachi bought IBM's disk drive business, including the Microdrive technology and brand. By 2003, under Hitachi, bigger 2 GB models came out. Over the years, even larger sizes have become available. There are licensed branded Sony models called Sony Microdrive; these are re-badged Hitachi made models. December 2002 : January - February - March - April - May - June - July - August - September - October - November - December - → // Events December 31, 2002 United States troops get into a brief gun battle with paramilitary forces of the Warzirstan Scouts of Pakistan, in a remote tribal area along the undefined Afghan/Pakistani border, in Paktia Province...

Seagate 2.5 GB 1" CF Drive

In 2004 Seagate launched 2.5 and 5 GB models as well, and tends to refer to them as either 1-inch hard drives, or CompactFlash hard drives due to the trademark issue. In 2005 it launched an 8 GB model as well. Image File history File links Saegaet_wiki. ... Image File history File links Saegaet_wiki. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... Seagate can refer to: Seagate Technology, a high tech manufacturer Seagate, Brooklyn, a community in Brooklyn, USA Seagate, Friends of, the nonprofit 501(c)(3) organization founded to preserve the historic winter retreat of Gwendolyn and Powel Crosley in Sarasota, Florida, USA Seagate, North Carolina, a community in North Carolina...


Recently a Chinese manufacturer called GS Magic started marketing small form factor HDDs for CF; it has, however, been sued by Hitachi for patent infringement of the IBM design[citation needed] (as opposed to Seagate, which used its own technology). These drives are generally cheaper and of lower quality than Hitachi and Seagate drives and have received a plethora of bad reviews.


Microdrive models by timeline

Date of release of large sizes.

1999 170 megabyte (IBM MD170/A)
1999 340 megabyte (IBM)
2000 512 megabyte, 1 gigabyte (IBM)
2003 2 gigabytes (Hitachi)
2004 4 gigabytes (Hitachi), 2.5 and 5 gigabytes (Seagate)
2005 8 gigabytes (Hitachi), 8 gigabytes (Seagate)
2006 8 gigabytes (Hitachi), 8 gigabytes (Seagate)
2007 Hitachi promised a 20-gigabyte microdrive to be released in 2007[1]. As of February 2008, this high-capacity drive is commercially unavailable.[2]
2008 8 gigabytes (Hitachi), 8 gigabytes (Seagate)

This article is about a unit of data. ... This article is about the unit of measurement. ...

Availability

As of 2006 the most commonly-seen microdrives are the smaller sizes, up to 1GB. Larger (2GB to 8GB) drives, such as the 4GB and 6GB Hitachi models, the 5GB and 8GB Seagate models and the 2.2GB Magicstor drive are also available but are often embedded in Pocket hard drives, 'high end' mobile phones, music players, and other entertainment devices. Such embedded devices are far more popular than the loosely-sold Microdrives intended as a CompactFlash card alternative. Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... The pocket hard drive is a higher capacity variant of the flash drive. ...


In USA most electronics shops do not sell separate Microdrives as they may find it economically unviable to stock them due to the fast-moving nature of the market, however they are readily available on several websites. But in most developed Asian cities such as Hong Kong and Japan Tokyo, a 8GB version of the Seagate ST1 are selling at the price (as of second quarter 2006) as low as USD220 in retail shops, and under USD100 on eBay Motto: (traditional) In God We Trust (official, 1956–present) Anthem: The Star-Spangled Banner Capital Washington, D.C. Largest city New York City Official language(s) None at the federal level; English de facto Government Federal Republic  - President George W. Bush (R)  - Vice President Dick Cheney (R) Independence - Declared - Recognized... For other uses, see Asia (disambiguation). ... For other uses, see Tokyo (disambiguation). ... This article is about the online auction center. ...


Applications

IBM 1 GB Microdrive
IBM 1 GB Microdrive
  • CF to IDE adaptors and USB card readers enable microdrives to be used in computers, they can then be formatted with any filesystem that the operating system supports such as ext3. It is even possible to run an operating system directly from the Microdrive. Such a system would be rather sluggish for today's standards but still a viable option for some embedded applications. IDE adaptors are inexpensive as they have no integrated circuits like the PCMCIA adaptors.
  • Some high capacity USB drives are comprised of microdrives with a USB interface; they can often be recognized by a rectangular shape. These devices are sometimes called Pocket hard drives. However there is currently a trend for selling desktop PCs with integrated multi-card readers. If this trend continues this could eliminate the need to integrate them into pocket hard drives with USB connections.
  • Microdrives are popular with professional photographers, who take advantage of their multi-gigabyte capacity to be able to store high-resolution, print-quality photographs without too much concern about storage space. Outside of the professional and prosumer photography market, Microdrives have more limited popularity because many compact cameras that had CF slots did not have type II slots (or support the power requirement).
  • The original JVC Everio camcorders (GZ-MC200/MC100) utilised 4GB IBM/Hitachi Microdrives as storage instead of the magnetic tape or DVD more commonly seen in products of this type. Current Everio models use the more common 2.5" HDDs.
  • Some PDA users use Microdrives to boost the storage capacity of their PDA. The LifeDrive has an integrated 4 gigabyte microdrive as its main selling point.
  • Microdrives are found in the discontinued iPod mini and Creative Zen Micro mp3 players, among others. Companies making such players order the Microdrives in large quantities, which can mean that it is cheaper to buy an mp3 player with an integrated Microdrive than a separate Microdrive to add to an expandable mp3 player. An example is the Creative MuVo; many of these were bought up by those interested in purchasing a Microdrive and stripped for their Microdrive which was then replaced by a lower capacity CompactFlash card.
  • When combined with a PCMCIA adaptor and used in a laptop Microdrives can be a viable alternative to USB flash drives purely due to their price. The use of Microdrives over chip-based CF cards is unlikely to make any notable difference to the battery life of the laptop, and any impact that would damage the Microdrive is likely to break other components of the laptop as well. However these devices cannot be used with ordinary desktop PCs unless they are fitted with PCI PCMCIA adaptors or CF card readers.
  • There are third-party devices intended to let users of the Sony PSP use memory cards other than Memory Sticks. Some claim to be compatible with MicroDrives, and some even come with a MicroDrive in the package. However, while such converters work perfectly for other kinds of flash memory (SD and CompactFlash), it is no longer possible (due to firmware upgrades) to use actual MicroDrives on the PSP. The acceptable timeout delay has been decreased from the first firmware revisions, and as a result loading a game from the hard disk results in a timeout error.
  • Many embedded industrial applications and University data-collecting projects

Sometimes when a device with an integrated Microdrive stops working the device is taken apart and stripped of its Microdrive, which is then sold on. Unfortunately, Microdrives taken from such devices may not work in digital cameras. These drives must be accessed using ATA mode, which is not supported in all devices. Such drives, therefore, do not sell for nearly as much as CF-enabled Microdrives. IBM microdrive from pixelquelle. ... IBM microdrive from pixelquelle. ... The ext3 or third extended filesystem is a journalled file system that is commonly used by the Linux operating system. ... A USB drive, shown with a 24 mm US quarter coin for scale. ... The pocket hard drive is a higher capacity variant of the flash drive. ... Prosumer refers to one of two possible portmanteaus formed by contracting either the word producer or professional with the word consumer. ... Victor Company of Japan, Limited ) (TYO: 6792 ), usually referred to as JVC, is an international consumer and professional electronics corporation based in Yokohama, Japan which was founded in 1927. ... The LifeDrive is a handheld device produced by Palm, Inc. ... The iPod mini is a smaller version of Apple Inc. ... The Creative ZEN (formerly known as Creative NOMAD Jukebox Zen) is a range of digital audio players (DAPs) and portable media players (PMPs) made by Creative Technology. ... A digital audio player (DAP) is a device that stores, organizes and plays digital music files. ... For the band, see Laptop (band). ... JumpDrive redirects here. ... This article is about the computer bus type. ... The finished PlayStation Portable, and a variety of accessories. ... This article is about Sonys proprietary memory format. ... A SanDisk Multi Card Reader, with a 2 GB SD Card inserted. ... A 32 MB High Speed CompactFlash Type I card CompactFlash (CF) was originally developed as a type of data storage device used in portable electronic devices. ... ATA cables: 40 wire ribbon cable top, 80 wire ribbon cable bottom Advanced Technology Attachment (ATA) is a standard interface for connecting storage devices such as hard disks and CD-ROM drives inside personal computers. ...


Devices with integrated microdrives

The iPod mini is a smaller version of Apple Inc. ... Wikipedia does not have an article with this exact name. ... The Creative ZEN (formerly known as Creative NOMAD Jukebox Zen) is a range of digital audio players (DAPs) and portable media players (PMPs) made by Creative Technology. ... The Creative ZEN (formerly known as Creative NOMAD Jukebox Zen) is a range of digital audio players (DAPs) and portable media players (PMPs) made by Creative Technology. ... The Creative ZEN (formerly known as Creative NOMAD Jukebox Zen) is a range of digital audio players (DAPs) and portable media players (PMPs) made by Creative Technology. ... The Creative ZEN (formerly known as Creative NOMAD Jukebox Zen) is a range of digital audio players (DAPs) and portable media players (PMPs) made by Creative Technology. ... The Dell Digital Jukebox or just Dell DJ was a brand name for a series of Digital jukeboxes sold by the Dell Computer corporation. ... The Hewlett-Packard Company (NYSE: HPQ), commonly known as HP, is a very large, global company headquartered in Palo Alto, California, United States. ... High Tech Computer Corporation (TSEC: 2498), known by its acronym HTC, is a Taiwan-based manufacturer of Microsoft Windows CE portable devices. ... Current iriver logo iriver (formerly iRiver) is a brand and division of ReignCom, manufacturer of digital audio players and other portable products. ... This article is about the telecommunications corporation. ... The LifeDrive is a handheld device produced by Palm, Inc. ... Seagate 2. ... Sharp Zaurus SL-5500 running OpenZaurus and OPIE, with docking cradle and stylus The Sharp Zaurus is the name of a series of Personal Digital Assistant (PDA) made by Sharp Corporation. ... The Trekstor Vibez is a Digital Audio Player due to be released in November 2006. ...

Advantages of Microdrives

  • Until recently, Microdrives had higher capacity than CompactFlash cards.
  • Microdrives allow more write cycles, an advantage for embedded operating system applications.[citation needed]
  • Microdrives might be better at handling power loss in the middle of writing. Flash storage always needs to move some old data around while writing, to ensure the flash's finite write life is consumed equally. A bug in that data-moving algorithm could cause data loss if the card is unplugged at the exact wrong time. Data on a magnetic hard drive generally stays put, and hard drive algorithms have many years more experience and testing over Flash.

Disadvantages of Microdrives

  • Being mechanical devices they are more sensitive to physical shock and temperature changes than flash memory, though in practice they are very robust and manufacturers have added several features to the more recent models to improve reliability.
  • A microdrive will generally not survive a 4 foot (1.2 metres) drop onto a hard surface where CF cards can be thrown off high-rise buildings and still function.[citation needed] Using a soft packaging (e.g. Polystyrene foam) can allow survival from a longer drop.
  • Newer Microdrives have a mechanism to hold the heads off the platter while the device is not in use. Early IBM models do not have this - when one gently shakes such a drive one can hear the heads click from side to side.
  • Microdrives are not as fast as the high-end CompactFlash cards; they generally operate at around 4-6 megabytes per second while high-end CF cards can operate at 20 megabytes per second. This may cause problems for photographers who shoot sequences of large images in rapid succession.
  • Not designed to operate at high altitudes (over 10000 feet), but can be safely used on most commercial aircraft as cabins are generally pressurized.
  • Only high capacity models are manufactured, as it is not profitable to make low-capacity Microdrives. At the end of 2005 only capacities above 2 gigabytes are manufactured while 256mb and 512mb CompactFlash cards were still in production. Lower capacities are still readily available second hand on eBay but these are usually the same price as CF cards of the same size.
  • Unlike flash memory, microdrives require power even when no data is being transferred to them to keep the disc spinning. As a result many devices such as the iPod mini leave the drive switched off for most of the time while periodically starting it up to fetch data from it to fill the device's buffer. Microdrives will switch off after idling for more than a few seconds to counter this problem however this means that more time is lost constantly spinning the drive up. This effect would be particularly problematic if an operating system is being run from the drive. However the drive can be forced to stay running if the host device is programmed to write random bits of data to it.
  • Certain bus-powered CF card readers lack the power needed to run a microdrive although they do take CF II cards, when using such a device it will usually be detected by the host but errors will occur once the user attempts to access the drive.
  • Microdrives also require some time to spin up, this is very low when compared to regular hard drives but not as fast as flash memory.
  • Since Microdrives are often integrated in another device this can cause trouble if the drive breaks, it is usually the most fragile component of the device and if the device is out of warranty it can be very difficult to replace the drive

For other uses, see Polystyrene (disambiguation). ... This article is about the online auction center. ...

CF hard drive models by manufacturer

Many smaller sized models are no longer offered, as they have been supplanted by flash memory. A USB flash drive. ...


IBM MicroDrive (now manufactured by Hitachi)

  • 170 megabyte
  • 340 megabyte
  • 512 megabyte
  • 1 gigabyte
  • 4 gigabyte

Hitachi MicroDrive

  • 512 megabyte
  • 1 gigabyte
  • 2 gigabyte
  • 3 gigabyte
  • 4 gigabyte
  • 6 gigabyte
  • 8 gigabyte

IBM and Hitachi models fitted with 128 KB of cache memory A kilobyte (derived from the SI prefix kilo-, meaning 1,000) is a unit of information or computer storage equal to either 1,000 bytes or 1,024 bytes (210), depending on context. ...


GS Magic

  • 2.2 gigabyte ATA, USB(NATIVE), & CF variants
  • 3 gigabyte ATA
  • 4 gigabyte ATA & CF variants

Seagate ST1 ATA may refer to: The Athens Trombone Association The ISO 3166-1 3-letter country code for Antarctica. ... Note: USB may also mean upper sideband in radio. ...

  • 2.5 gigabyte
  • 4 gigabyte
  • 5 gigabyte
  • 6 gigabyte
  • 8 gigabyte

These Seagate models are fitted with 2 MB of cache memory This article is about a unit of data. ... This article is about the computer term. ...


Sony Compact Vault

  • 2 gigabyte (rebadged Hitachi)
  • 4 gigabyte (rebadged Hitachi)
  • 5 gigabyte
  • 8 gigabyte

Cornice

  • 4 gigabyte

References

  1. ^ "Hitachi lays groundwork for 20-GB Microdrive with century-old technology", Hitachi, Hitachi Global Storage Technologies, 4 April 2005. Retrieved on 9 June 2007.
  2. ^ "Hitachi's high-capacity microdrives", Hitachi, Microdrive 3K8 Product Page. Retrieved on 4 February 2008.

is the 160th day of the year (161st in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 35th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ...

See also

The PCMCIA is the Personal Computer Memory Card International Association, an industry trade association that creates standards for notebook computer peripheral devices. ... A 32 MB High Speed CompactFlash Type I card CompactFlash (CF) was originally developed as a type of data storage device used in portable electronic devices. ... A 32 MB MultiMediaCard MultiMediaCard A 128 MB RS-MMC card and an adapter An RS-MMC card with adapter attached The MultiMediaCard (MMC) is a flash memory memory card standard. ... A SanDisk Multi Card Reader, with a 2 GB SD Card inserted. ... This article is about Sonys proprietary memory format. ... The xD-Picture Card is a type of flash memory card, used mainly in digital cameras. ... A 128MB SmartMedia flash memory card. ... Digital cameras are a remarkable advance in technology. ... Digital camera memeory media, or just memory media when used in reference to Digital media recording devices, generally refers to any number recording formats, standards, and systems. ...

External links

MP3 Newswire is one of the earliest news sites focused on digital media technology. ... Four major types of memory cards (from left to right: CompactFlash, Memory Stick, Secure Digital, and xD. A memory card or flash memory card is a solid-state electronic flash memory data storage device used with digital cameras, handheld and Mobile computers, telephones, music players, video game consoles, and other... A 32 MB High Speed CompactFlash Type I card CompactFlash (CF) was originally developed as a type of data storage device used in portable electronic devices. ... The JEIDA memory card standard was a popular memory card standard at the beginning of memory cards appearing on portable computers. ... This article is about Sonys proprietary memory format. ... The miCard (Multiple Interface card), announced 2 June 2007, was accepted by the MultiMedia Card Association (MMCA) as a global flash memory card standard to work with the majority of electronic devices. ... A 32 MB MultiMediaCard MultiMediaCard A 128 MB RS-MMC card and an adapter An RS-MMC card with adapter attached The MultiMediaCard (MMC) is a flash memory memory card standard. ... The PCMCIA is the Personal Computer Memory Card International Association, an industry trade association that creates standards for notebook computer peripheral devices. ... A SanDisk Multi Card Reader, with a 2 GB SD Card inserted. ... A 128MB SmartMedia flash memory card. ... SxS is a flash memory standard compliant to the ExpressCard standard created by Sony and Sandisk. ... Universal Flash Storage (UFS) is a proposed common flash storage specification for digital cameras, mobile phones and consumer electronic devices. ... JumpDrive redirects here. ... The xD-Picture Card is a type of flash memory card, used mainly in digital cameras. ... This table provides summary of comparison of various flash memory cards, as of 2007. ...

  Results from FactBites:
 
Microdrive - Wikipedia, the free encyclopedia (1840 words)
Microdrives which can store 4 GB or more must be formatted for a file system which supports this capacity, such as FAT 32 or NTFS, which may not be supported by older CompactFlash hosts.
The Microdrive was developed and launched in 1999 by IBM with a capacity of 170 MB, which was expanded to 6 GB by 2005.
Microdrive™ was a registered trademark by IBM and Hitachi for each period.
ZX Microdrive - Wikipedia, the free encyclopedia (416 words)
Microdrives used tiny (44 x 34 x 8 mm including protective cover) cartridges containing a 5 m (200 inch) endless loop of video tape, 1.9 mm wide, driven at 76 cm/second (30 in/second); thus performing a complete circuit in approximately 8 seconds.
The cartridges held a minimum of 85 kB when formatted on a ZX Microdrive (exact capacity depended on the number of "bad" sectors found and the precise speed of the Microdrive motor when formatting); the data retrieval rate was 15 kB/second (i.e., 120 kbit/s).
Microdrives were also used as the native storage medium of the Sinclair QL which incorporated two internal drives.
  More results at FactBites »

 
 

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