UDIF stands for UniversalDisk Image Format . It is used on Mac OS X for .dmg disk image s. UDIF is a flat file format , and is the Native and foreign format native image format for Mac OS X. The format can also be opened by MagicISO and the freeware MagicDisc on Microsoft Windows Windows . External links http developer.apple.com documentation Darwin Reference ManPages man1 hdiutil.1.html tt man tt page for hdiutil http www.magiciso.com Main page for magic ISO Category Computer file formats Category Mac OS X Category Disk images Disk images mac stub it UniversalDisk Image Format ... more details
Refimprove date March 2010 Original research date March 2010 Optical disc authoring UniversalDiskFormat ... to UniversalDiskFormat UDF ref Revision 1.02 August 30, 1996 . This format is used by DVD ... pseudo overwrite capability on sequentially recordable media. UniversalDiskFormat builds UniversalDiskFormat builds are as follows Plain Random Read Write Access . This is the original format ... either the VAT or Spared UniversalDiskFormat builds . Mac OS X 10.4.5 claims to support ... DVD RW disks that use the UniversalDiskFormat UDF 2.00 defect management system. ref cite web ... DiskFormat Specification Revision 1.02 author date work publisher Osta accessdate 25 September 2010 ref ref cite web url http www.osta.org specs pdf udf201.pdf title UniversalDiskFormat Specification ... 168 UniversalDiskFormat builds References reflist Further reading ISO IEC 13346 standard, also known ... standards Category Windows components ca UniversalDiskFormat cs UniversalDiskFormat da UDF de UniversalDiskFormat es UniversalDiskFormat fr UniversalDiskFormat ko it UniversalDiskFormat lt UDF ms UniversalDiskFormat nl UniversalDiskFormat ja pl UDF system plik w pt UniversalDiskFormat ru UniversalDiskFormat sk UniversalDiskFormat sr UDF sv UniversalDiskFormat uk UDF zh ... 167 and is an open format open vendor neutral file system for computer data storage for a broad range ... on disc just as a general purpose filesystem would on removable media like floppy disk s and USB ... in Revision 1.50. For write once media, the entire disk is virtualized, making the write once nature transparent for the user the disk can be treated the same way one would treat a rewritable disc ... writing Mount Rainier for optical discs, or a disk controller for a hard drive. Incorrect or incomplete ... virtualization in reading or writing the disk. Compatibility Many DVD player s do not support any UDF ... more details
Builds of UDF These are 3 main types of UniversalDiskFormat file system on disks Plain Random Read Write Access . This is the original format supported in all UDF revisions Virtual Allocation Table a.k.a. VAT Incremental Writing . Used specifically for writing to CD R and write once media Spared Limited Random Write Access . Used specifically for writing to CD RW and DVD RW rewritable media Plain build This format can be used on any type of disk that allows random read write access, such as hard disks, DVD RW and DVD RAM media. Similarly to other common file system formats, such as File Allocation Table FAT , directory entries point directly to the block numbers of their file contents. In writing to such a disk in this format, any physical block on the disk may be chosen for allocation of new or updated files. Since this is the basic format, practically any OS or File System Driver claiming support for UDF should be able to read this format. VAT build DVD R and CD R media have limitations ... Table will read outdated sectors, leading to retrieval of the wrong data. See also UniversalDiskFormat ... gets written to CD media. To enable CD R to be used virtually like a hard disk, whereby the user ... the VAT build to the UDF standard. The VAT is an additional structure on the disk that helps in remapping physical blocks when files or other data on the disk are modified. The write once nature of the media means that when a file is first added and then deleted on the disk, the file s data still remains on the disk. It does not appear in the directory any more, but special tools can be used to access .... Eventually the disk will be full, as free space cannot be recovered by deleting files. However, this behavior ... your computer might not read a particular UDF disk , below. Spared RW build DVD RW and CD RW media have ... with the spared UDF build, the disc should never be reused with any other format, as the information ... authoring DVD Authoring Category Disk file systems ... more details
Floppy diskformat and density refer to the logical and physical layout of data stored on a floppy disk . Since their introduction, there have been many popular and rare floppy disk types, densities, and formats ... floppy disk types and formats became obsolete, leaving the 3 inch disk, using an IBM PC compatible format of 1440 KB, as the only remaining popular format. Different floppy disk types had different ..., a format of usually 5 floppy disk which could typically hold 35 40 tracks of nine 512 byte or 18 ... Disk Drive 1984 Abacus Software Inc http en.wikipedia.org w index.php?title Special Booksources&isbn 0916439011 ISBN 0916439011 DEFAULTSORT Floppy DiskFormat Category Floppy disk computer ... assumed to be the logical format used. Group Code Recording GCR was also used on some platforms ... and hard sectoring . Because of the similarity in magnetic characteristics between some disk types, it was possible to use an incorrectly certified disk in a soft sectored drive. Quad density ... inch floppies had an index hole on both sides of the disk sleeve to make them usable as flippy disk s. A combination floppy disk and optical disc , known as a Floptical disk exists. The size of a convert 90 mm in abbr on disk, they are capable of holding close to 20.8 MB ref http library.n0i.net ... title ref , but need a special drive. Logical formatting Formatted disk capacity is always less than the nominal capacity provided for each type of disk. Leaving some space empty between sectors ... double sided double density drives. Ironically this same year, Commodore released a floppy disk .... Known disk logical formats main List of floppy disk formats Throughout the 1970s and 1980s, many different logical disk formats were used, depending on the hardware platform. See also Double sided disk Double sided RAM Notes reflist References http th99.80x86.ru Floppy Controllers Jumper settings http www.discinterchange.com TechTalk floppy disks .html Floppy disk specifications ... more details
The Storage Networking Industry Association SNIA Common RAID Disk Data Format defines a standard data structure describing how data is formatted across disks in a RAID group. The DDF structure allows a basic level of interoperability between different suppliers of RAID technology. The Common Redundant array of independent disks RAID DDF structure benefits storage users by enabling data in place migration among systems from different vendors. External links http www.snia.org standards home SNIA Standards compu hardware stub Category RAID de Disk Data Format ... more details
Universal communication format is a communication protocol developed by the IEEE for multimedia communication. UCF was proposed by Y. Hiranaka, H. Sakakibara and T. Taketa of Yamagata University in 2005. From the abstract ref IEEE article http ieeexplore.ieee.org iel5 10338 32901 01540747.pdf Universal communication format for multimedia data PDF, registration required ref blockquote cite http ieeexplore.ieee.org xpl freeabs all.jsp?tp &arnumber 1540747&isnumber 32901 Various intelligent equipments and software are gradually designed to communicate with other equipment or software. However, any data format that can be considered as universal and almost eternally usable is not available. In this paper, we present UCF as a candidate bidirectional communication data format, and show its typical application for multimedia data. UCF is formed with the object address and the data to be forwarded. Communications can be simply performed by sending UCF data in required directions. blockquote UCF is used by several commercial Web conferencing applications. List of software using UCF Cisco WebEx Notes Reflist Category Network protocols Compu stub ... more details
Universal Subtitle Format USF was a CoreCodec project to create a clean, documented, powerful and easy to use subtitle file format. It is based on XML for some of the following reasons flexibility, unicode support, a hierarchical system, and ease of administration. USF subtitles are usually used in Matroska Containers. The format has come under criticism, especially from the fansub community ref cite web url http blog.aegisub.org 2008 07 universal subtitle format post mortem.html title Universal Subtitle Format a post mortem? author amz date 23 July 2008 publisher Aegisub blog ref , because compared to the format it aims to replace, SubStation Alpha Advanced Substation Alpha which is based on comma separated values , it is more verbose and far harder for software to read, write and manipulate. It is also much harder to edit by hand in text editors such as notepad. For these reasons, as well as the lack of a generic cross platform parsing rasterizing library and mature editing programs that natively support it, the format has not gained wide acceptance. No known media player software implements more than basic support for this format. VSFilter , and VLC media player starting with the 0.9.0 release can extract the subtitle text, timing information and very restricted formatting. Example Below is the example USF file as presented in the v1.1 specification ref http www.titlevision.com usf.htm USF Specification v1.1 ref source lang xml USFSubtitles version 1.0 metadata title The Universal Subtitle Format sample title author name Toff name email christophe.paris free.fr email url http christophe.paris.free.fr url author language code eng English language date 2002 11 08 date comment This is a short example of USF. comment metadata styles Here we redefine the default style style ... USFSubtitles source References reflist Category Subtitle file formats es Universal Subtitle Format fr Universal Subtitle Format ... more details
Infobox short story See Wikipedia WikiProject Novels or Wikipedia WikiProject Books name The Disk title orig El Disco translator author Jorge Luis Borges country Argentina language Spanish language Spanish series genre Fantasy , short story published in The Book of Sand book The Book of Sand publisher media type Print pub date 1975 english pub date 1977 preceded by followed by The Disk is a 1975 in literature 1975 short story written by Argentina Argentinian writer Jorge Luis Borges . It appears in the collection The Book of Sand book The Book of Sand . Synopsis The story deals with a woodcutter who lives in the midst of a deep wood in old England and who has never seen the sea. He tells the reader that at one time a man,who asks lodging from him appears at his door. The woodcutter notes that the man was elderly, as he referred to England as Saxony , which, at the time,was a sign of age. The day after the man wishes to leave, but before he does,he says that he is a King and is descended from Odin . He tells the woodcutter that he is exiled, but that he shall always be a king, because he holds the Disk of Odin, the sole thing in the world that has but one side. He opens his hand and shows the disk the woodcutter sees only an empty palm, but thereafter touches it, feeling a chill in the fingers and seeing a flash. He makes a false claim that he has a full chest of gold and wants to trade it for the disk, because he knows the man will decline. And the man does, to which the woodcutter replies that the man may go. When he turns around, the woodcutter kills the man with an axe. He then drags the body and throws it into the river. He then comes back and searches for the disk, which he never finds. See also portal Novels Bibliography of Jorge Luis Borges DEFAULTSORT Disk, The Category 1975 short stories Category Short stories by Jorge Luis Borges story stub es El disco ... more details
Notability Products date October 2009 Refimprove date November 2009 The term disk to disk , or D2D , generally refers to disk to disk backup. With D2D, a computer hard disk is backed up to another hard disk rather than to a tape or floppy. D2D is often confused with virtual tape , but differs in that it enables multiple backup and recovery operations to simultaneously access the disk directly by using a true file system. ref citebook title Backup and recovery first W. Curtis last Preston edition 2 publisher O Reilly Media year 2006 ISBN 0596102461 pages 219 ref Typical advantages of disk to disk Higher speed and higher capacity, relative to tape or floppy, resulting in shorter backup and recovery windows. Non linear recovery of data, enabling a specific file to be restored quicker and simpler than with tape. Lower total cost of ownership due to increased automation and lower hardware costs. Citation needed date August 2008 Remote backup services Remote backup service s are closely related to D2D backup as they are most often stored remotely on disk. The only major difference is that the data tends to be held at a remote location and these services are often provided by List of backup software Managed backup providers . References refs compu storage stub Category Computer backup Category Disk cloning ... more details
for information on Wikipedia article format Wikipedia Manual of Style wiktionarypar formatFormat may refer to File format , layout for electronic files Text formatting , typesetting of text elements. Format command , a command line utility in many computer operating systems Format computing , a computer command to prepare hard disks Format Common Lisp , a programming function DJ Format , a hip hop artist The Format , a musical group The Format album The Format album , by AZ Radio format Television format disambig ca Format cs Form t de Format es Formato fr Format ga Form id ko it Format nl Format pl Format pt Formato ro Format sr Format sh Format fi Formaatti sv Format ... more details
For the AZ album The Format album Infobox musical artist Name The Format Img The Format in concert Aug 2007.JPG Img capt The Format performing in 2007 at the Opera House in Toronto Landscape yes Background ... The Format was an American indie rock band formed by Arizona natives Nate Ruess and Sam Means. The band ..., Radiohead, the Format publisher Spin magazine Spin date 2008 02 04 url http www.spin.com articles news roundup arcade fire gang four radiohead format accessdate 2008 04 10 ref Their style can be considered ... music. ref Cite news last Iwasaki first Scott title The Format refuses to stick to a musical format ... recording and summer 2007 tour The Honorary Title s current drummer and The Format alumnus Adam Boyd. The Format chose their name to make fun of the music industry s inclination towards a cookie cutter format for a hit. History Before forming The Format in 2001, ref name Telegram Cite news last McLennan first Scott title The Format not just another emo band page E3 publisher Telegram & Gazette ... Band of the day The Format page publisher Spin magazine Spin date 2006 07 14 url http www.spin.com features ... Michele title Format Busters publisher Phoenix New Times date 2006 07 06 url http www.phoenixnewtimes.com 2006 07 06 news format busters accessdate 2008 02 05 ref Despite some criticism Citation needed ... Single from their five song demo, EP The Format album EP , became locally popular on Phoenix ... After Elektra folded, The Format released a second EP, Snails The Format album Snails with sister ... September 2010 by the 1970s pop influenced demos and released The Format from its contract. Upon ... news last Ferrucci first Patrick title Label Problems not a big deal for The Format page W23 publisher ... to the internet. In response, The Format decided to make the album immediately available digitally ... 11, 2006. The day the album was released, an episode of MTV s My Super Sweet 16 featuring The Format .... Following the release of Dog Problems , The Format gained more attention, receiving high marks from ... more details
wiktionary universalUniversal may refer to TOCright Companies and organizations NBC Universal , a media and entertainment company Universal Studios , an American film studio, and subsidiary of NBC UniversalUniversal Channel , a television channel owned by NBC UniversalUniversal Music Group , a family of record labels Universal Records , a record label owned by UMG, founded in 1995 Universal game company Universal Airlines , an airline based in Guyana, operating 2001 2005 Universal Airlines US , an airline based in Michigan, operating 1966 1972 Universal Avionics , a manufacturer of flight control components Universal Corporation , an American tobacco company Universal Gen ve , a Swiss watch company Universal Gym Equipment Universal Helicopters , a commercial helicopter company Universal Records Philippines , a record label in the Philippines, founded in 1977 Universal Stereo , a radio station Universal Weather and Aviation , an aviation products and services company Music Universal Borknagar album Universal Borknagar album Universal Orchestral Manoeuvres in the Dark album Universal Orchestral Manoeuvres in the Dark album Universal Troll album Universal Troll album Universal YFriday album Universal YFriday album The Universal , a song by Blur The Universal Small Faces song The Universal Small Faces song Social science Universal metaphysics Universal Esperantido , a constructed language Linguistic universal , a statement that applies to all languages Cultural universal , a trait common to all cultures The origin of the term Catholicism Other uses Universal act , a type of official or legal proclamation Universal, Indiana , United States HTC Universal , a Pocket PC phone Universal property , a statement in category theory about isomorphic systems. Computationally universal , a concept related to Turing completeness in computability theory Universal certificate, a rating administered by the British Board of Film Classification The Universal, an oxygen rebreather designed ... more details
distinguish The Universal Small Faces song Infobox Single See Wikipedia WikiProject Songs Name The Universal Cover Blur The Universal front single cover.jpg Artist Blur band Blur Album The Great Escape album The Great Escape Released 13 November 1995 Format Gramophone record 7 vinyl jukebox only , Cassette single cassette , 2 x CD single CD Recorded 1995 Genre Britpop Length 3 59 Label EMI , Food Records Producer Stephen Street Last single Country House br 1995 This single The Universal br 1995 Next single Stereotypes song Stereotypes br 1996 Misc External music video YouTube MKvJxtSpKYk The Universal The Universal is a song by English alternative rock band Blur band Blur and is featured on their fourth studio album, The Great Escape album The Great Escape . It was released 13 November 1995 as the second single music single from that album, charting at 5 in the UK Singles Chart see 1995 in British music . In keeping with the song s science fiction theme, the single s cover art is an allusion to the opening shot of 2001 A Space Odyssey film 2001 A Space Odyssey , and the music video is a tribute ... The Universal version 1& 93 publisher mvdbase.com date accessdate 2010 06 28 ref The band is presented ... BBC News Online ref Track listings CD1 The Universal Ultranol No Monsters in Me Entertain Me the live it remix CD2 The Universal II live at the beeb The Universal live Mr Robinson s Quango live It Could Be You live Stereotypes live 7 and Cassette The Universal Entertain Me the live it remix Japan CD The Universal It Could Be You live Stereotypes live Entertain Me the live it remix Note ... in an ad for VH1, Latin America. YouTube ref Production credits The Universal , Ultranol and No Monsters ... 2681522 Watch the video on http www.ifilm.com IFILM Blur DEFAULTSORT Universal, The Category Blur band songs Category 1995 singles Category Music videos directed by Jonathan Glazer fr The Universal pt The Universal sv The Universal ... more details
Disk cloning is the process of copying the contents of one computer hard disk to another disk or to an image file. Often, the contents of the first disk are written to an disk image image computer file file as an intermediate step, and the second disk is loaded with the contents of the image. This procedure is also useful when moving to a larger capacity disk or to restore the disk to a previous state. Uses There are a number of notable uses for disk cloning software. These include Reboot and restore a technique in which the disk of a computer is automatically wiped and restored from a clean , master ... manufacturers and larger companies. Hard drive upgrade An individual user may use disk copying cloning to upgrade to a new, usually larger, hard disk. Full system backup A user may create a comprehensive ... to disk cloning on the x86 platform specific details may not apply to other platforms. To provision the hard disk of a computer without using disk cloning software, the following steps are generally required for each computer Create one or more partition IBM PC partition s on the diskDisk formatting Format each partition to create a file system on it Install the operating system Install device driver s for the particular hardware Install application software With disk cloning, this is simplified to Install the first computer, as above. Create an image of the hard disk optional Clone the first disk, or its image, to the remaining computers This can be referred to simply as a recovery disc. History Before Windows 95 , some computer manufacturers used hardware disk copying machines to copy software. This had the disadvantages of copying not just the used data on the disk, but also unused Disk sector sector s, as the hardware used was not aware of the structures on the disks. A larger hard disk could not be copied to a smaller one, and copying a smaller one to a larger left the remaining space on the new disk unused. The two disks required identical geometries. Other manufacturers ... more details
Orphan date December 2010 Unreferenced date December 2009 Disk cartridge has several meanings related to computer storage . 1960s storage medium An early disk cartridge was a single hard disk platter encased in a protective plastic shell. When the removable cartridge was inserted into the cartridge drive peripheral device , the disk read and write head read write head s of the drive could access the magnetic data storage device data storage surface of the platter through holes in the shell. The disk cartridge was a direct evolution from the disk pack drive, or the early hard drive . As the computer storage density storage density improved, even a single platter would provide a useful amount of data storage space, with the benefit being easier to handle than a removable disk pack. An example of a cartridge drive is the early IBM disk storage IBM 2310 IBM 2310 . Disk cartridges were made obsolete by floppy disk s. Expand section date June 2008 Modern storage medium Image Zip disc back.jpg thumb Zip disks are sometimes referred to as disk cartridges. Some more recent removable disk storage media are referred to as disk cartridges . This is most common with Zip drive Zip disk s. It is very rare, but not unheard of, to refer to the floppy disk 3 inch microfloppy as a disk cartridge. Protective casing Some types of optical disc s and magneto optical disc s were either permanently enclosed in a protective plastic sheath, or placed into a sheath before being inserted into the computer drive drive . This sheath was often called caddy , but sometimes also disk cartridge . See also Cartridge electronics Universal Media Disc DEFAULTSORT Disk Cartridge Category Rotating disc computer storage media ... more details
authoring burning disk images to CD ROM CD or DVD in HFS Plus HFS format ref http support.apple.com kb HT2087 Burning a disk image file on a CD or DVD in Mac OS X ref erasing CD RW s and DVD RW DVD RW s checking the Self Monitoring, Analysis, and Reporting Technology S.M.A.R.T status of a hard disk. Disk Utility functions may also be accessed from the Mac OS X Command line interface command line with the diskutil and hdiutil commands. Disk Utility was updated with Mac OS X v10.3 . Prior to v10.3 ...Primary sources date July 2008 Infobox software name Disk Utility logo Image Diskutil.png 64px screenshot Image Disk Utility screenshot.png 220px Disk Utility screenshot caption author developer Apple ... license Proprietary software Proprietary website Disk Utility is the name of a Utility software utility created by Apple Inc. Apple for performing Disk storage disk related tasks in Mac OS X . These tasks include ref http docs.info.apple.com article.html?path DiskUtility 10.5 en duh1008.html Disk Utility 10.5 Help Testing and repairing a disk or volume ref the creation, conversion, compression and encryption of disk image s from a wide range of formats read by Disk Utility to .dmg or for CD DVD images .cdr, which is identical to the .iso format Citation needed date August 2009 in HFS format ... hard disk s, removable media and disk images enabling or disabling Journaling file system journaling verifying a disk s Data corruption integrity , and repairing it if the disk is damaged this will work for both Mac compatible format partitions, and FAT 32 partitions with Microsoft Windows installed ... Disk Utility s Repair Disk Permissions feature ref disk erasing, disk formatting formatting , disk partitioning partitioning ref http support.apple.com kb HT2374 Mac OS X 10.5 About resizing disk partitions ref and disk cloning cloning secure deletion of free space or disk using a zero out data, a 7 ..., merging ref http support.apple.com kb TA24359 Mac OS X How to combine RAID sets in Disk Utility ... more details
unreferenced date May 2010 The disk controller or hard disk controller is the Electronic circuit circuit which allows the Central processing unit CPU to communicate with a hard disk , floppy disk or other kind of disk drive . Early disk controllers were identified by their storage methods and data encoding. They were typically implemented on a separate controller card. Modified frequency modulation MFM controllers were the most common type in small computers, used for both floppy disk and hard disk drives. Run length limited RLL controllers used data compression to increase storage capacity by about 50 . Priam created a proprietary storage algorithm that could double the disk storage. Shugart Associates Systems Interface Shugart Associates System Interface SASI was a predecessor to SCSI . Modern disk controllers are integrated into the disk drive. For example, disks called SCSI disks have built in SCSI controllers. In the past, before most SCSI controller functionality was implemented in a single chip, separate SCSI controllers interfaced disks to the SCSI bus. The most common types of interfaces provided nowadays by disk controllers are Parallel ATA PATA IDE and Serial ATA for home use. High end disks use SCSI , Fibre Channel or Serial Attached SCSI . Disk controller versus host adapter The correct term for the components that allows a computer to talk to a peripheral bus is host adapter or host bus adapter HBA . On the other hand, a disk controller allows a disk to talk to the same bus. Those two are often confused, especially in the Advanced Technology Attachment PC world . In fact signals read by a disk read and write head are converted by a disk controller, then transmitted over the peripheral bus, then converted again by the host adapter into the suitable format for the motherboard ... a host adapter and a disk controller a disk array controller that allows RAID Hardware RAID hardware ... different functions. See also Disk array controller Forensic disk controller Controller computing ... more details
Unreferenced stub auto yes date December 2009 Infobox Software name Disk Copy logo Deleted image removed Image Disk Copy.png Disk Copy icon screenshot caption developer Apple Computer latest release version 10.2 operating system System Software 6 , System 7 Macintosh System 7 , Mac OS 8 , Mac OS 9 , Mac OS X v10.0 , Mac OS X v10.1 , Mac OS X v10.2 genre disk image emulator license Disk Copy was the default utility for handling disk image s in System 7 Macintosh System 7 through Mac OS X 10.2 Usable in System Software 6 as well . In later versions of Mac OS X it has been replaced by DiskImageMounter for mounting the images and Disk Utility for creating them. Although the last official public release of Disk Copy for Mac OS 9 was version 6.3.3, there was to be a version 6.5 that supported the newer DMG image format introduced with Mac OS X. But because Apple had stopped support for OS 9 already, support for the old OS was eventually removed in favour of OS X. As such the OS 9 version of 6.5 only ever made it to beta 13 before development on it stopped. There was also a developer version 6.4 that 6.5 was based on and had most of the same functionality, but as a developer version it was never released. Although version 6.4 and 6.5 will read DMG images when the system is booted into OS 9, they can only do so if the image is not compressed. Disk Copy was also the name of an Apple utility distributed with some of the earliest version of the Mac OS. In order to copy 400K floppy disks using as few disk swaps as possible on a machine with only 128K of RAM, the original Disk Copy used the screen buffer to store binary data from the disk being copied as a result, the screen other than ... image formats Disk Copy Disk Copy 4.2 DiskSet PC drive container raw disk image See also DiskImageMounter The Mac OS X 10.3 and later successor. Disk Utility Creates disk images in Mac OS X 10.3 and later. RaWrite and RaWrite2 for MS DOS and Microsoft Windows dd Unix Category Mac OS Category Disk ... more details
container format compatible with containers used by SecuBox disk encryption software by Aiko Solutions ...Infobox Software name Private Disk logo Image Private Disk logo.png screenshot Image Private disk main ... to update Comparison of disk encryption software latest release date November 10, 2010 latest preview ... Seven genre Disk encryption software language 17 languages license shareware price USD 65 website http www.dekart.com products encryption private disk www.dekart.com products encryption private disk Overview Private Disk is a disk encryption application for the Microsoft Windows operating system , developed ... on the fly other software can use the drive as if it were a usual one. One of Private Disk s key ... encryption. Although Private Disk uses a NIST certified implementation of the AES ref name NIST AES ... Disk the encryption hash library used ref http www.dekart.com fileadmin company Dekart 20NIST CSE 20AES ... ref , and not to Private Disk as a complete system. Feature highlights NIST certified implementation of Advanced Encryption Standard AES 256 bit, and SHA 2 . Private Disk complies with Federal Information Processing Standard FIPS 197 and Federal Information Processing Standard FIPS 180 2 Disk ... disk Compatibility with Windows 9x and Windows NT based operating systems including Windows Vista ... disk is mounted or dismounted Encrypted backup of an encrypted image Password quality meter Automatic backup of a disk s encryption key Built in password recovery tool Compatibility with 64 bit platforms Awards Existing versions There are multiple versions of Private Disk, which provide a different feature set http www.dekart.com products encryption private disk Private Disk hard disk encryption ..., USB disk portability, etc. http www.dekart.com products encryption private disk mf Private Disk Multifactor is a superset of Private Disk, providing the same functionality, adding support for biometric ... encryption private disk light Private Disk Light is a free version, it uses AES 128 and comes with a restricted ... more details
A disk editor is a computer program that allows its user to read, edit, and write raw data at ASCII character or hexadecimal , byte byte levels on disk drives e.g., hard disk s, USB flash disk s or removable media such as a floppy disk s as such, they are sometimes called sector editors, since the read write routines built into the electronics of most disk drives require to read write data in chunks of disk sector sector s usually 512 bytes . Many disk editors can also be used to edit the contents of a running computer s computer memory memory or a disk image . Unlike hex editors, which are used to edit Computer file files , a disk editor allows access to the underlying disk structures, such as the master ... directories . Programmers can use disk editors to understand these structures and test whether ... disk editors include special functions which enable more comfortable ways to edit and fix file systems or other disk specific data structures. Furthermore some include simple file browsers that can present the disk contents for partially corrupted file systems or file systems unknown to the operating system. These features can be used for example for file recovery. History Disk editors for home ... resets, instead of having to be re loaded on the same disk drive that later would hold the floppy to be edited the majority of home computer users possessed only one floppy disk drive at that time . Having the disk editor on cartridge also helped the user avoid editing damaging the disk editor application disk by mistake. List of some disk editors or products containing them External links ... disk editor and RAM editor for Win9x NT and up. http wxhexeditor.sf.net wxHexEditor designed for huge ... hexplorer.sourceforge.net ICY Hexplorer Hexplorer doesn t format file content, but it displays it as it is, that is as binary ... may need cleanup http apps.tempel.org iBored iBored cross platform block oriented disk and file editor with templates system and remote network disk access. Knows several common disk structures ... more details
In data storage device data storage , disk mirroring or RAID1 is the replication of logical disk volumes onto separate physical hard disk s in Real time computing real time to ensure continuous availability ... on the disk array controller or via server computing server software . It is typically a proprietary ... of a disk hardware failure a system can continue to process or quickly recover data. Mirroring may be done locally where it is specifically to cater for disk unreliability, or it may be done ... physical format is hidden from the mirroring process. Typically mirroring is provided in either hardware solutions such as disk array s or in software within the operating system. There are several scenarios for what happens when a disk fails. In a hot swap system, in the event of a disk failure, the system itself typically diagnoses a disk failure and signals a failure. Sophisticated systems may automatically activate a hot standby disk and use the remaining active disk to copy live data onto this disk. Alternatively, a new disk is installed and the data is copied to it. In less sophisticated systems, the system is operated on the remaining disk until such time as a spare disk can be installed ..., system performance is usually degraded as the disk system is fully occupied in copying data from one disk to the other. It is often misunderstood that mirroring of disks is a substitute for taking regular backups as it is incorrectly assumed that the only cause of data loss is disk failure. In fact ... to say It is differentiated from a disk snapshot snapshot in that there are no remaining links ..., disk mirroring can allow each disk to be accessed separately for reading purposes. Under certain circumstances ... disk can seek most quickly to the required data. This is especially significant where there are several tasks competing for data on the same disk, and thrashing where the switching between tasks takes ... configurations that frequently access the data on the disk. In some implementations, the mirrored disk ... more details
About computer music collections the Purple Motion album Musicdisk album demoscene Music disk , or musicdisk , is a term used by the demoscene to describe a collection of songs made on a computer. They are essentially the computer equivalent of an album . A music disk is typically packaged in the form of a program with a custom user interface , so the listener does not need other software to play the songs. The disk part of the term comes from the fact that music disks were once made to fit on a single floppy disk , so they could be easily distributed between friends and at demoparty demo parties . On modern platform computing platforms , music disks are usually downloaded to a hard disk drive . Songs in a music disk are typically composed with a tracker music software tracker , a type of program popular in the demoscene. Amiga music disks usually consist of MOD file format MOD files, while IBM PC PC music disks often contain multichannel formats such as Fast Tracker XM or Impulse Tracker IT . Music disks are also common on the Commodore 64 and Atari ST , where they use their own native formats. Related terms include music pack , which can refer to a demoscene music collection that does not include its own player, and chipdisk , a music disk containing only chiptune s, which have become popular on the PC given the large size of MP3 music disks. External links http www.pouet.net prodlist.php?type musicdisk Musicdisks on Pouet.net http chipdisk.ru Chip Music Online unreferenced date August 2007 Category Demoscene Category Albums de Music Disk fr Music disk ... more details
In 1985, Apple attempted to introduce a new 3.5 800ki floppy diskformat to eventually replace the Disk II format. However, the external Macintosh External Disk Drive Apple UniDisk 3.5 UniDisk 3.5 ... accepted. Though Apple eventually offered a 1.44MiB Superdrive as well, the 5.25 Disk II format ...Image Disk II.jpg thumb right Disk II drives. The Disk II Floppy Disk Subsystem was a 5 inch Floppy disk floppy disk drive designed by Steve Wozniak and manufactured by Apple Computer . It was first introduced in 1978 at a retail price of US 495 for pre order it was later sold for 595 including the Disk controller controller card and cable. The Disk II was designed specifically for use with the Apple ... offer a disk drive for the Apple II, which used data cassette storage like other micromputers ... The New York Times date 1997 09 01 ref The first Disk II drives A2M0003 sold were built using parts ..., Apple Computer, Inc., Fall 1990 9 16. ref Normal storage capacity per disk side was 113.75kiB with DOS ... to manually flip the disk to utilize the opposite side after cutting a second notch on the diskette ... 6 interface cards 2 per card . A Bell & Howell version of the Disk II was also manufactured by Apple ... which Apple was already manufacturing. Disk III In 1978, Apple intended to develop its own Apple FileWare ... twiggy.html Apple and the Floppy Drive dead link date August 2010 ref The first variation of the Disk II introduced for the Apple , called the Disk A3M0004 , used the identical drive mechanism inside ... II users quickly devised a way to adapt their existing and cheaper Disk II drives, however only one external Disk II was supported in this manner. The Disk was the first to allow daisy chaining of up ... of 4 floppy disk drives the Apple was the first Apple to contain a built in drive mechanism. The Apple III Plus changed its 26 pin connector to a DB 25 connector, which required an adapter for use with the Disk ... as a replacement for the Disk II & III, but due to the notorious unreliability of the Apple ... more details
Digital s Advanced Format The 4K Sector Transition Begins ref The earliest disk drives also had fixed block sizes e.g. http www 03.ibm.com ibm history exhibits storage storage 350.html IBM 350 disk ... thumb 200px Low level format of a 10 megabyte IBM PC XT hard drive. Hard disk drives prior to the 1990s ... Low Level Format, Zero Fill and Diagnostic Utilities . Retrieved May 24, 2007. ref Disk reinitialization ... on the disk, sometimes called zero filling . The present ambiguity in the term low level format ... and Microsoft Windows , disk formatting can be performed by the code format command format code command ... code , where fsname is the name of the filesystem with which to format the disk. ref cite web url ... on IBM mainframes. ref high level format. Instead, the area on the disk containing the data is merely ... How to Use the Fdisk Tool and the Format Tool to Partition or Repartition a Hard Disk ...Image Formatting c drive.JPG thumb Formatting a hard drive using MS DOS Disk formatting is the process for preparing a hard disk drive or flexible disk for its use by an operating system OS , usually including the creation of a file system . For some operating systems, disk formatting may create multiple file systems on the same device by dividing the disk into sections, called Disk partitioning partitions , one for each file system. ref http www.partitionwizard.com help what is disk formatting.html What is disk formatting? ref A variety of application programs exist for disk formatting, pictured ... 791D 1994, AT Attachment Interface for Disk Drives ATA 1 , section 7.1.2 ref drives, appear at their interface ... 03.ibm.com ibm history exhibits storage storage 1301.html title IBM 1301 disk storage unit author ... disk subsystems on the IBM System 360 expanded this concept in the form of Count Key Data CKD and later ... 3390 direct access storage device ref Floppy disk s generally only used fixed block sizes but these sizes were a function of the host s Operating System OS and its interaction with its Floppy disk controller ... more details
where the data is recorded in a digital format as optical information. The first commercial disk storage device, that is the first commercial digital disk storage device, was the IBM IBM 350 IBM 350 RAMAC 350 shipped in 1956 as a part of the RAMAC IBM 305 RAMAC computing system. Disk storage is now ... into a format that the individual drive can use to store onto the disk itself. The data is then passed ... as a single cylinder. Disk sector Sector a segment of a track Low level diskformat formatting establishing ...Unreferenced date June 2010 Disk storage or disc storage is a general category of storage mechanisms ... on a surface layer deposited of one or more planar, round and rotating platters. A disk drive is a device ... types are the hard disk drive which contain a non removable disc , the floppy disk floppy disk drive and its removable floppy disk , various optical disc drive s and optical disc associated media . CD s and DVD s are optical devices File SixHardDriveFormFactors.jpg thumb Six hard disk drives File Floppy Disk Drives 8 5 3.jpg thumb Three floppy disk drives File Asus CD ROM drive.jpg thumb A CD ROM optical disk drive Background Music al and sound reproduction audio information was originally recorded ... innovation in disk storage technology, coupled with less vigorous innovation in tape storage, has reduced the density and cost per bit gap between disk and tape, reducing the importance of tape as a complement to disk. Today disk storage devices typically have a single head that moves across a disk ... Samsung HD753LJ 01 Top.jpg center A typical hard disk drive center Image Samsung HD753LJ 02 Bottom.jpg ... cover removed center Image Hard disk platters and head.jpg center Disks 2 and actuator arms 4 center Image Samsung HD753LJ 05 Head.jpg center The head and disk center Image Hard disk head.jpg center Head on the disk platter center gallery Too HDD specific, putting better images in intro Disk drives are Computer data storage block storage devices . Each disk is divided into logical Block data storage ... more details
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