Data storage device (74 résultats)

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A data storage device is a device for recording information. Recording can be done using virtually any form of energy, spanning from manual muscle power in handwriting, to acoustic vibrations in phonographic recording, to electromagnetic energy modulating magnetic tape and optical discs. A storage device may hold information, process information, or both. A device that only holds information is a recording medium. Devices that process information may either access a separate portable recording medium or a permanent component to store and retrieve information. Electronic data storage is storage which requires electrical power to store and retrieve that data. Most storage devices that do not require vision and a brain to read data fall into this category. Electromagnetic data may be stored in either an analog or digital format on a variety of media. This type of data is considered to be electronically encoded data, whether or not it is electronically stored in a semiconductor device, for it is certain that a semiconductor device was used to record it on its medium. 112 pp. Englisch.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - High Quality Content by WIKIPEDIA articles! A CRAM cartridge contained 256 3x14' cards with a PET film magnetic recording surface. Each Deck of cards could contain up to 5.5 MB of alphanumeric characters. The cards were ingeniously suspended from eight d-section rods, which were selectively rotated to release a specific card, each card having a unique pattern of notches at one end. The selected card was dropped and wrapped around a rotating drum to be read or written. Each cartridge could store 5.5MB. Later versions of the CRAM; 353-2 and 353-3 used Decks of 512 card, thus doubling the storage capacity of each unit. The CRAM was also available on NCR's third generation NCR Century 100 as the NCR/653-100. Each card contains seven tracks containing 1550 slabs each of them. Normally the track was initialized with a four slab header containing the cartridge number (2), the card number and the track number.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - High Quality Content by WIKIPEDIA articles! Veeco Instruments Inc (NASDAQ: VECO) is a provider of metrology and process equipment solutions used by manufacturers in the data storage, semiconductor, wireless, lighting and solar industries. These industries help create a wide range of information age technology and products, such as portable music players, cell phones, PDAs, digital video recorders, backlighting for computers and TVs, architectural and automotive lighting, solar cells and much more. Products are also instruments used in the advancement of scientific research, life sciences and nanotechnology. Veeco's metrology tools are used to measure at the nanoscale and process equipment tools help create nanoscale devices. …

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - High Quality Content by WIKIPEDIA articles! RealAudio is a proprietary audio format developed by RealNetworks. It uses a variety of audio codecs, ranging from low-bitrate formats that can be used over dialup modems, to high-fidelity formats for music. It can also be used as a streaming audio format, that is played at the same time as it is downloaded. In the past, many internet radio stations used RealAudio to stream their programming over the internet in real time. In recent years, however, the format has become less common and has given way to more popular audio formats. It is used heavily by the BBC websites, though its use on the site is being phased out. The first version of RealAudio was released in 1995. As of 2008 the current version is RealAudio 10.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - High Quality Content by WIKIPEDIA articles! In information theory, the noisy-channel coding theorem establishes that however contaminated with noise interference a communication channel may be, it is possible to communicate digital data nearly error-free up to a given maximum rate through the channel. This surprising result, sometimes called the fundamental theorem of information theory, or just Shannon's theorem, was first presented by Claude Shannon in 1948. The Shannon limit or Shannon capacity of a communications channel is the theoretical maximum information transfer rate of the channel, for a particular noise level.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A MiniDisc (MD) is a magneto-optical disc-based data storage device initially intended for storage of up to 80 minutes of digitized audio. Today, in the form of Hi-MD, it has developed into a general-purpose storage medium in addition to greatly expanding its audio roots. MiniDisc was announced by Sony in September 1992 and released that November for sale in Japan and December for the USA and Europe. The music format was originally based exclusively on ATRAC audio data compression, but the option of linear PCM recording was ultimately introduced to attain CD- quality recordings. MiniDiscs were popular in Japan and Asia as a digital upgrade from cassette tapes, butwere not as popular elsewhere.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A recording head is the physical interface between a recording apparatus and a moving recording medium. Recording heads are generally classified according to the physical principle that allows them to impress their data upon their medium. A recording head is often mechanically paired with a playback head, which, though proximal to, is often discrete from the record head.Note that Magneto-optical recording, though using optics and heat, should properly be considered a magnetic process, since the data stored on magneto-optical media is stored magnetically.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - High Quality Content by WIKIPEDIA articles! A Volume Boot Record (also known as a volume boot sector or a partition boot sector, although the latter is not strictly correct) is a type of boot sector, stored in a disc volume on a hard disk, floppy disk, or similar data storage device, that contains code for booting programs (usually, but not necessarily, operating systems) stored in other parts of the volume. On non-partitioned storage devices, it is the first sector of the device. On partitioned devices, it is the first sector of an individual partition on the device, with the first sector of the entire device instead being a Master Boot Record (MBR).The code in volume boot records is invoked either directly by the machine's firmware or indirectly by an MBR or a boot manager.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. United States federal research funders use the term cyberinfrastructure to describe research environments that support advanced data acquisition, data storage, data management, data integration, data mining, data visualization and other computing and information processing services distributed over the Internet beyond the scope of a single institution. In scientific usage, cyberinfrastructure is a technological and sociological solution to the problem of efficiently connecting laboratories, data, computers, and people with the goal of enabling derivation of novel scientific theories and knowledge.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Drum memory is a magnetic data storage device and was an early form of computer memory widely used in the 1950s and into the 1960s, invented by Gustav Tauschek in 1932 in Austria. For many machines, a drum formed the main working memory of the machine, with data and programs being loaded on to or off the drum using media such as paper tape or punched cards. Drums were so commonly used for the main working memory that these computers were often referred to as drum machines. Drums were later replaced as the main working memory by memory such as core memory and a variety of other systems which were faster as they had no moving parts, and which lasted until semiconductor memory entered the scene.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Molecular memoryis a term for data storage technologies that use molecular species asthe data storage element, rather than e.g. circuits, magneticsinorganic materials or physical shapes. The molecular component can bedescribed as a molecular switch, and may perform this function by any ofseveral mechanisms, including charge storage, photochromism, or changesin capacitance. In a perfect molecular memory device, each individualmolecule contains a bit of data, leading to massive data capacity.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Storage WorldConference (sometimes called SWC) is a conference for data storageprofessionals in the United States. Associated with the Association ofStorage Networking Professionals, SWC has been held since 2001. 2006will see two SWC conferences: June 20, 2006 through June 22, 2006, atthe Long Beach Convention Center in Long Beach, California September 192006 through September 21, 2006 at the Seaport World Trade Center inBoston, Massachusetts. The event is oriented towards end users of datastorage equipment and software, and includes a professionalcertification program to encourage attendance at educational sessions.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. An atomic commitis an operation in which a set of distinct changes is applied as asingle operation. If the changes are applied then the atomic commit issaid to have succeeded. If there is a failure before the atomic commitcan be completed then all of the changes completed in the atomic commitare reversed. This insures that the system is always left in aconsistent state. The other key property of isolation comes from theirnature as atomic operations. Isolation insures that only one atomiccommit is processed at a time. The most common uses of atomic commitsare in database system and revision control system systems. The problemwith atomic commits is that they require coordination between multiplesystems. As computer networks are unreliable services this means noalgorithm can coordinate with all systems as proven in the Two GeneralsProblem. As databases become more and more distributed this coordinationwill increase the difficulty of making truly atomic commits.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Direct-attachedstorage refers to a digital storage system directly attached to a serveror workstation, without a storage network in between. It is a retronymmainly used to differentiate non-networked storage from SAN and NAS. Atypical DAS system is made of a data storage device connected directlyto a computer through a host bus adapter. Between those two points thereis no network device, and this is the main characteristic of DAS. Themain protocols used for DAS connections are ATA, SATA, eSATA, SCSI, SASand Fibre Channel.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. An informationrepository is an easy way to deploy secondary tier of data storage thatcan comprise multiple, networked data storage technologies running ondiverse operating systems, where data that no longer needs to be inprimary storage is protected, classified according to captured metadataprocessed, de-duplicated, and then purged, automatically, based on dataservice level objectives and requirements. In information repositoriesdata storage resources are virtualized as composite storage sets andoperate as a federated environment.…

Taschenbuch. Etat : Neu. Atomic Commit | Atomic, Database Systems, Revision Control, Two Generals' Problem, Data Storage Device, Two-Phase Commit Protocol, Concurrent Versions System | Frederic P. Miller (u. a.) | Taschenbuch | Englisch | 2026 | OmniScriptum | EAN 9786132901453 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

Taschenbuch. Etat : Neu. DVD | Data storage device, Video 20, DVD- R 29, DVD- RW 30, DVD- RAM 33, DVD RW 38, DVD- Video 41, DVD- Audio 50 | Frederic P. Miller (u. a.) | Taschenbuch | Englisch | 2026 | OmniScriptum | EAN 9786130027919 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand. …

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Disk-drive performance characteristics are the attributes which control the time it takes to transfer data between a computer and a data storage device starting with the initial command from the computer or host until the storage device completes the command. Higher performance comes from devices which have faster performance characteristics. These devices include those with rotating media, hereby called rotating drives, i.e., hard-disk drives, floppy disk drives, optical discs, and it also covers devices without moving parts like solid-state drives.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A virtual tape library (VTL) is a data storage virtualization technology used typically for backup and recovery purposes. A VTL presents a storage component (usually hard disk storage) as tape libraries or tape drives for use with existing backup software. Virtualizing the disk storage as tape allows integration of VTLs with existing backup software and existing backup and recovery processes and policies. The benefits of such virtualization include storage consolidation and faster data restore processes.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Intimate media are media artifacts created and collected by individuals, friends, and families to capture and commemorate aspects of family and intimate relationships. Intimate media includes such things as personal and family photo collections, home videos and films, diaries and journals, and letters. In fact, depending on the meaning and values attributed to an object, anything could be considered intimate media. Cass, Goulden, Kozlov, and Rees write that '[t]he deepest relationship people have with their material possessions is through associating them with experiences.'. …

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. SoulPad is a mobile computing project developed by researchers at IBM. The project's aim is to provide a computer user with the ability to suspend their operating system environment and resume it on another computer, all by using a USB data storage device. The SoulPad project is the subject of a paper entitled Reincarnating PCs with Portable SoulPads, which won Best Paper at the 2005 ACM/USENIX MobiSys conference. A video demo of the technology in action was made available on IBM's website. The researchers of the project have suggested that SoulPad could be used to boot one's operating environment from USB compatible storage devices such as cell phones and iPods.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Digital Copy is a marketing term for a commercially distributed computer file containing a media product such as a film or music album. The term contrasts the computer file with the physical copy with which the digital copy is usually offered as part of a bundle. There are two types of digital copy. The first is a copy already made in advance and included on the disc. The second is created dynamically from the DVD content itself. In both scenarios the publisher decides which content, formats, digital rights management systems and technical parameters are used for the digital copy file. Digital Copy systems based on existing pregenerated files are less flexible than dynamic transcoding solutions.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. gpart is a software utility which scans a storage device, examining the data in order to detect partitions which may exist but are absent from the disk's partition tables. Gpart was written by Michail Brzitwa of Germany. The release on the author's website is now older than the releases some distributions are using. It appears that Michail Brzitwa does not actively maintain the code, instead the various distributions appear to maintain their own versions. gpart tries to guess partitions from any device that can be partitioned, even a file. If the primary partition table has been lost, overwritten or destroyed the partitions still exist on the media but the operating system cannot access them.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The EFI System partition is a partition on a data storage device that is used by machines that adhere to the Extensible Firmware Interface. It contains the boot loader programs for all operating systems installed on the device, device driver files for other devices, and system utility programs that are intended to be run before an operating system is booted. The EFI System partition is formatted using a variant of the FAT format. The globally unique identifier for the EFI System partition in the GUID Partition Table scheme is C12A7328-F81F-11D2-BA4B-00A0C93EC93B. Its ID in the MBR partition table scheme is 0xEF.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. The loss ofUnited Kingdom child benefit data was a data breach incident in October2007, when two computer discs owned by Her Majesty's Revenue and Customscontaining data relating to child benefit went missing. The incident wasannounced by the Chancellor of the Exchequer, Alistair Darling, on 20November 2007. The two discs contained the personal details of allfamilies in the United Kingdom claiming child benefit, of which takeupin the UK is near 100%.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Covermount is thename given to storage media or other products packaged as part of amagazine or newspaper. The usual method of packaging is to place themedia or product in a transparent plastic sleeve and mount it on thecover of the magazine with adhesive tape or glue, hence the name.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Dataproliferation refers to the prodigious amount of data, structured andunstructured, that businesses and governments continue to generate at anunprecedented rate and the usability problems that result fromattempting to store and manage that data. While originally pertaining toproblems associated with paper documentation, data proliferation hasbecome a major problem in primary and secondary data storage oncomputers.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Data remanence isthe residual representation of data that have been in some way nominallyerased or removed. This residue may be due to data being left intact bya nominal delete operation, or through physical properties of thestorage medium. Data remanence may make inadvertent disclosure ofsensitive information possible, should the storage media be releasedinto an uncontrolled environment. Over time, various techniques havebeen developed to counter data remanence. Depending on the effectivenessand intent, they are often classified as either clearing orpurging/sanitizing. Specific methods include overwriting, degaussingencryption, and physical destruction.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. In data storagedisk mirroring or RAID1 is the replication of logical disk volumes ontoseparate physical hard disks in real time to ensure continuousavailability. A mirrored volume is a complete logical representation ofseparate volume copies. In a Disaster Recovery context, mirroring dataover long distance is referred to as storage replication. Depending onthe technologies used, replication can be performed synchronouslyasynchronously, semi-synchronously, or point-in-time. Replication isenabled via microcode on the disk array controller or via serversoftware. It is typically a proprietary solution, not compatible betweenvarious storage vendors. Mirroring is typically only synchronous.Synchronous writing typically achieves a Recovery Point Objective ofzero lost data. Asynchronous replication can achieve an RPO of just afew seconds while the remaining methodologies provide an RPO of a fewminutes to perhaps several hours. Mirroring is different from fileshadowing.…