Storage devices Articles
HD video recording with Bluray DVD disk - ... can store up to 4.7 Gigabytes of data, and the single sided blu-ray DVD disk can store 27 Gigabytes of data. The backers of bluray disk that work on...
Dell LTO4 Tape Drive And Tape Library - ...overhead of administration and the backup windows are also shortened up in comparison to the LTO3 tape devices. The advance and effective features of ...
Content Protection In SDHC Memory Card - ...amcorders, A/V devices, telecommunication devices, still & digital cameras and personal digital assistants (PDA). Consumers now demand new feature...
Imation Travan Tape Technology - ...stries & businesses. From storage media consulting & services to the organization's desktop & data backup media, Imation with its problem ...
Canon Digital Camera - ... Canon is a worldwide name, the quality and excellence of these cameras is undisputed. Thata€TMs why, when you buy any one of the Cano...
Advantages of USB Floppy Drive - ...files. USB Floppy Drive are also commonly referred to as key drive, thumb drives, jump drives, USB Floppy Drive and pen drives.USB Floppy ...
Enjoy True Blood on Your iPod - ...u do? You will get the answer in the following part of this article.
Nothing beats the experience of enjoying a film in the cinema with a larg...
Hard disk speed - ...cond of commercial power in the United States.
Synchronous motors are typically big, heavy, and expensive. They also run on normal line vol...
Caching - ...a number termed average access time, which describes the mean time (in milliseconds) required for the read/write head of a drive t...
RAID implementation levels - ...ost drive arrays are assembled by computer manufacturers for their own systems, but a growing number are becoming available as plug-in additions to ...
AV Drives - ...e workable amounts of high quality data.
More important than capacity is speed. Unlike normal hard disks that must provide instant access to...
Hard Disks Low Level Formatting - ...tion of a hard disk drive is called its format. Hard disks differ from floppies in that two levels of organization wear the same title-the low level...
History of floppy disks - ...urrent disks was that it was bigger, an 8-inch disk in a slightly larger Mylar envelop (like that of today's 5.25-inch floppy disks). Rather than a ...
Iomega ZipDisk - ...e Zip medium uses an optically read servo track to allow repeatable head positioning in fine increments, fine enough to allow for a scant 100MB per ...
CD DA systems - ...dio level is quantified as one of 65,536 levels. With linear encoding, that's sufficient for a dynamic range of 96 decibels, that is 20log(162). To ...
CD ROM - ...it delivers data from elsewhere into your PC. Once a CD ROM disk is pressed, the data it holds cannot be altered. Its pits are present for eternity...
CD Recordable - ...nce it starts. An interruption in the data flow can result in an error in recording. Moreover, to obtain the highest capacity possible from a give...
CD Erasable - ...ncarnation of phase-change technology. The first drives, under the Phase Change Recordable banner or PCR, were made by Toray Industries. They used a...
DVD Specifications and Standards - ...uctions.
Where the CD started as a single-purpose device and later grew to accommodate applications its developer could never have foreseen,...
CD Care - ...he readability of a given disc. Moreover, all CD formats use heavy duty error correction that compensates for any errors that do occur, at least if...
Tape Technologies - ...t requires an uninterrupted flow of data. At least four of these terms-start-stop, streaming, parallel, and serpentine-crop up in the specifications...
How Disk Drives Save Info - ... would be the tolerances inside a hard drive-the gaps in between the heads and the platters aren't large enough to admit a human hair-it's a wonder th...
Latest "Storage devices" Articles
Page# 1 (last added articles shown first)
How a Drive Writes and Reads Bits on the Disk (08/31/2010)
(...) When the little bit is truly a binary 0, the particles in both bands are aligned in the exact same path.
Whenever a second little bit is saved, the polarity of its first band is usually the opposite from the band preceding it to indicate that it's beginning a new little bit. Even the slowest drive requires only a fraction of a 2nd to create each band. (...)
How Disk Drives Save Info (08/31/2010)
(...) An access time of 87 milliseconds was warp rate compared towards the access occasions of floppy drives. A decade later, hard drives that hold a lot more than 1000 gigabytes, more compact than a three.5-inch floppy drive, and with seek times of 8. (...)
How a Mirrored Drive Assortment Protects Files (08/31/2010)
(...) If two drives are mirrored, read time is cut approximately in half; three mirrored drives decrease read time to about one-third that of a solitary drive.
But the real objective of a RAID 1 isn't speed. It is redundancy. (...)
How PCs Use Light to Remember Data (08/31/2010)
(...) The fairly clumsy magnetic read/write heads in a conventional drive do not possess the precision required to jam-pack the data. That has created the compact disc the medium of choice for distributing today's software, which takes up hundreds of megabytes. You find CD-ROMs filled with clip art, photographs, encyclopedias, the complete functions of Shakespeare, and entire bookshelves of reference material. (...)
How DVD and BluRay work (08/31/2010)
(...) Here are the differences in between blue laser Dvd movie and old optical discs and just how the two battling blue light differ from every.
Compact Disc: A Compact disk uses a red laser that includes a wavelength of 790 nanometers (nm).
That's a little less than a millionth of a meter; it would take a lot much more than 300 dots of red laser light to cover the width of the human hair. (...)
CD Erasable (06/13/2010)
(...) The actual writing format uses sectors of 512 bytes versus the 2048-byte or larger sectors used by CD, so PD disc are also logically incompatible with CDs. You cannot duplicates a CD on the PD medium. Moreover, the logical format of the PD system limits its capacity to 650MB per disc as opposed to the 680MB total of CDs. (...)
DVD Specifications and Standards (06/13/2010)
(...) Although the first DVD devices have not included DVD recorders, that technology is expected to follow the initial product releases.
DVD represents a grand union of standards, originally adopted in December 1995 as an amalgam of two competing proposals; one from Toshiba, the other from the original CD developers, Sony and Philips. Everyone (and particularly Sony) had learned a hard lesson from the Betamax-VHS marketplace wars. (...)
CD Care (06/13/2010)
(...) If your hands are too small to reach across the expanse of a disc, you can always slide a finger partly into the center hole. If you must hold the surfaces of a disc, pinch them so that only your fingertips touch the disc as near as possible to the center hole. Never stack CDs atop one another as they may scratch each other. (...)
Tape Technologies (06/13/2010)
(...) They had to. The computers and their disks were so slow that they could not move data to the drive as fast as the drive could write it to tape. Modern PCs, disks, and tape drives are all faster, and they use large memory buffers to assure that the tape-bound data forms an interrupted stream. (...)
AV Drives (06/11/2010)
(...) To achieve the highest possible performance, they add extensive buffering and may sacrifice or delay some data integrity features.
In order to handle AV data as fast as possible, AV drives generally have very high rotational rates, some up to 7200 RPM, and newer drives will undoubtedly climb higher. In addition, most include large embedded buffers so that they can maintain high data throughputs even when incrementing between tracks and encountering errors. (...)
Hard Disks Low Level Formatting (06/11/2010)
(...) The process involves special equipment and operating modes that are inaccessible in normal operation. Some early IDE drives could be rendered unusable by attempting to low level format them. Most moderns drives will refuse low level format commands or will pretend to carry out a low level format without actually altering their format. (...)
History of floppy disks (06/11/2010)
(...)
The eight-inch floppy disks had a number of features going for them that made them desirable as a computer data storage medium . They were compact (at least compared to the ream of paper that could hold the same amount of information), convenient, and standardized. Above all, they were inexpensive to produce and reliable enough to depend on. (...)
Iomega ZipDisk (06/11/2010)
(...) In fact, the servo tracks cannot be erased by any means that would not destroy the cartridge.
The shell of the ZipDisk makes it a true cartridge. To achieve speeds in the hard disk range, the medium must spin at a high rate, and the friction from rubbing against a liner is anathema to speed. (...)
CD DA systems (06/11/2010)
(...)
In CD-DA systems, the large frame lacks the sync field, header, and error correction code used in CD ROM storage. Instead, the error-correction and control information is encoded in the small frames. The necessary information to identify each large frame is spread through all 98 bits of subchannel Q in a given large frame. (...)
CD ROM (06/11/2010)
(...) The original CD ROM format was extended to cover these additional kinds of data with its Extended Architecture. The result was the Yellow Book standard.
Format
The Yellow Book describes how to put information on a CD ROM disk. (...)
CD Recordable (06/11/2010)
(...) Or you can better prepare your files for transfer to CD. In particular, build a CD image on a hard disk that can be copied on the fly to the CD.
The best strategy is to give over your PC to the CD writing process, unloading any TSR programs, background processes, or additional tasks in a multi-tasking system. (...)
RAID stands for Redundant Array of Inexpensive Disks (06/10/2010)
(...) Its Fault tolerance is none . Its availability is lowest of any RAID level , and Random Read /Write performance and Sequential Read/ Write performance is satisfactory and up to the level. The cost of RAID 0 is lowest from all level of RAID. (...)
How Do You Enjoy Bluray Movies on Your Windows Media Player (06/02/2010)
(...) Windows Media Player (abbreviated WMP) is a proprietary digital media player and media library application developed by Microsoft that is used for playing audio, video and viewing images on personal computers running the Microsoft Windows operating system, as well as on Pocket PC and Windows Mobile-based devices. The player can play MP3, WMA, WAV, AVI and other formats file.
So all you need to do is converting your Blu-ray movies to AVI format, which can be played on Windows Media Player. (...)
Enjoy True Blood on Your iPod (06/01/2010)
(...) ), MP4 (inc. Sony PSP and Apple iPod), WMV, 3GP, 3G2, QuickTime (MOV), SWF, DVD, VOB, MPEG 1,2,4,MPEG, Real Video (RM, RMVB). Blu-ray Ripper can rip DVD to all popular audio formats including MP3, WAV, WMA, AAC, AC3, M4A, MP2, OGG. (...)
Hard disk speed (06/01/2010)
(...) Early hard disks with servo motors stuck with the standard 3600 RPM spin to match their signal interfaces designed around that rotation rate. Once interface standards shifted from the device level to the system level, however, matching rotation speed to data rate became irrelevant. With system-level interfaces, the raw data is already separated, deserialized, and buffered on the drive itself. (...)
Caching (06/01/2010)
(...) Similarly, the rotation rates of disks are limited by such issues as mechanical integrity (spin a disk too fast and centrifugal force will tear it apart) and the fact that the packing of data is constrained by the capability of the read/write technology to resolve individual bits on the disk surface.
The big problem with these mechanical limits is that they are orders of magnitude lower than the electronic and logic limits of computers. A computer thinks in nanoseconds and microseconds but has to wait milliseconds when it needs data from a disk. (...)
RAID implementation levels (06/01/2010)
(...) They called their models RAID Levels and labeled them as RAID 1 through 5, appropriately enough. Their numerical designations were arbitrary and were not meant to indicate that RAID 1 is better or worse than RAID 5. The numbers simply provide a label for each technology that can be readily understood by the cognoscenti. (...)
New High Class Imation DDS4, 40963 Backup Storage Tape (03/25/2010)
(...) Tape length and the track density of the tape media has been further increased by Imation to provide greater output characteristics and higher performance. Storage capability of this durable Imation backup tape is 20GB which can be extended to 40GB by using the compression mechanism.
Imation manufactures many the versions of DDS tapes whose part numbers are given here: Imation DAT-72 DDS5 tape (part number 17204), Imation DDS3 tape (part number 11737), Imation DDS-2 tape (part number 43347), and Imation DDS-1 tape (part number 42818). (...)
High Capacity Fuji DDS4 26047350 Tape Cartridge (03/12/2010)
(...) Data storage capacity of Fuji DDS4 tape cartridge doubles in compressed mode.
Highly reliable Fuji DDS4 26047350 tape cartridge delivers exceptionally high class performance as it features an ultra fine tape surface. If the tape surface is un-even, then it may lead to poor head contact and ultimately cause spacing losses. (...)
Advantages of USB Floppy Drive (11/11/2009)
(...) You may purchase a flash drive that is approximately the size of a zip disk, or 256MB. Also, you have the option of purchasing a few 32MB drives instead of a single 256MB drive.Advantages of USB Floppy Drive1. (...)
Philips Blu Ray Player Line up Complete (10/07/2009)
(...) This enable you to get additional content such as movie features and directors cuts for your films, downloaded straight to your Blu Ray Disc player.
The Philips BDP 5000 is a step up with additional features, functionality and quality. Whether you are looking for a basic player such as the BDP 3000 or the additional capabilities of the 5000, the Philips Blu Ray range really is stylish, simple to use and very capable. (...)
Canon Digital Camera (09/21/2009)
(...)
You also have the option of using fully automatic mode, fully manual mode, aperture priority mode, or shutter priority mode to take your photographs, along with the option available for you to use one of the pre-programmed modes such as Kids and Pets, Sports, Indoor, Beach, Fireworks, Snow, Underwater, Portrait or Night shot.
With this many features packed into the Canon digital cameras and more, you would be forgiven for thinking that the cameras would be weighty and bulky, when in fact the opposite is true. They are all of them for the most part very light and are ergonomically designed to facilitate easy handling. (...)
High Duty Cycle Of Quantum SDLT Tape Technology (02/10/2009)
(...) MRC comprises of cost effective, densely packed small cluster of magneto resistive tape heads. Thin film processing mechanism is used in the MRC heads. Multiple heads increase the performance, output and transfer rate of Quantum Super DLT technology. (...)
Imation Travan Tape Technology (02/10/2009)
(...) Travan tape format provides cost effective, enduring and sturdy storage solution. Travan tape technology provides clear path for migration with strong commitment of the major Original Equipment Manufacturers (OEM). Therefore for the enterprise's storage needs, Travan is the optimal multi-functional backup tape technology. (...)
Content Protection In SDHC Memory Card (01/30/2009)
(...) The other specifications that made possible to extend the capacity of SDHC card are SD secure digital binding, SD secure digital video and SD secure digital audio. SD (secure digital) audio facilitates the users and helps them in easy movement of the music libraries among different versions of secure digital enabled digital devices for including car stereos, audio players, cellular phones, computers and similar other mobile equipments. Content protection is protected by the specification of SD audio through Content Protection for Recordable Media (CPRM). (...)
Symmetric Phase Recording In DLT Tape Drive (01/30/2009)
(...) First true system of digital linear tape (DLT) was developed in the year 1989. Afterwards Quantum acquired this DLT tape technology. This tape technology has been licensed subsequently by different Original equipment manufacturers (OEM) for the production of automated backup data tape libraries. (...)
Why Storage Networking Makes Sense (11/08/2008)
(...) The databases we work with are exceeding the limitations of the server's storage connectivity.' This translates as:
Wider bandwidth is needed. The connection between the server and storage unit requires a faster data transfer rate. (...)
Business Applications Defined for Storage (11/08/2008)
(...)
Maintenance and Support Applications
Supporting large, highly available business applications and their infrastructures are numerous maintenance and support applications. These are implemented within support infrastructure areas. IT management must use these applications, often called tools and utilities, to maintain the mission-critical characteristics of enterprise applications. (...)
HD video recording with Bluray DVD disk (09/19/2008)
(...)
There is tuff competition between the traditional DVD’s and the bluray format DVDs. The high definition DVD is backed by Toshiba & NEC. While the bluray disc format is supported by group of magor companies like the sony, Philips, samsing and Hitachi. (...)
How To Download Music To Your PSP (07/11/2008)
(...)
One thing that you will want to be certain of when you download music to your PSP is that the site you choose offers security. You will want to be downloading music to your PSP, not a virus. Look for a site that is secured by Rapid SSL or comparable so that you know you are just going to get the best games, movies and music without any problems for your PSP. (...)
The Technological Wonder that is a Hard Disk (04/04/2008)
(...) While floppy disks existed separately from their drives and could be removed by the user, this was not the case with the hard disks which remained fixed inside a computer CPU. Therefore, they also came to be called as fixed disk drives (FDDs).
At the fundamental level, a hard disk is not much different from a floppy drive or cassette tape. (...)
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