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Topic: Compact disk

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	Disk storage - Wikipedia, the free encyclopedia
		Disk storage is --83.64.23.158 14:47, 15 October 2005 (UTC)--83.64.23.158 14:47, 15 October 2005 (UTC)--83.64.23.158 14:47, 15 October 2005 (UTC)--83.64.23.158 14:47, 15 October 2005 (UTC)a group of data storage mechanisms for computers; data are transferred to planar surfaces or disks for temporary or permanent storage.
		This compact disc technology has been widely accepted, and data storage, using writable compact disks or CD-R devices is very common.
		Vigorous 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.
	en.wikipedia.org /wiki/Disk_storage (561 words)

	compact disk. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
		Disk came into English in the mid-17th century and was originally spelled with a k on the model of older words such as whisk.
		When the new storage technology of the compact disk arose in the 1970s, both c- and k-spellings competed for an initial period.
		This is why we buy compact disks in computer stores but get the same storage devices with different data as compact discs in music stores.
	www.bartleby.com /61/16/C0521600.html (408 words)

	Compact Disk
		Unlike the hard disk or floppy disk, there is only one track on the optical disk and all data are stored in a spiral of about 2 billion small shallow pits on the surface.
		A laser beam of approximately 780 nm wave length is focused on the data side of the disk into a spot of about 1 micron in diameter.
		Inside the drive, the disk and the drive's optics are separated by a distance of about 1 mm, making mechanical interaction and "crashes", even with wavy disks and imperfect clamping almost impossible.
	www.usbyte.com /common/compact_disk_3.htm (547 words)

	Compact Disc Terminology
		Compact Disc, a digital medium formed of a 12cm polycarbonate substrate, a reflective metalized layer, and a protective lacquer coating.
		Mastering is the process of creating a stamper or set of stampers to be used in the injection moulding stage of manufacturing compact discs.
		During this process a digital signal from a computer is used to guide a laser beam which etches a pattern of "pits and lands" (in the case of CDs) or a continuous groove (for CD-Rs) onto a highly polished glass disc coated with photoresist.
	cd-info.com /refs/terms.html (966 words)

	Audio Compact Disk - An Introduction (Site not responding. Last check: 2007-11-05)
		Disks are written from the center to the outside (this increases manufacturing yield, and also allows for changes in disk size).
		If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindrical lens creates an elliptical image on the photodetector array.
		If the objective lens is further away from the compact disk than the focal length of the object lens, then the cylindrical lens again creates an elliptical image on the photodetector array.
	www.ee.washington.edu /conselec/CE/kuhn/cdaudio/95x6.htm (1553 words)

	The Compact Disk Player - infoweb (Site not responding. Last check: 2007-11-05)
		In this report I will cover the History of the Compact Disk, the way a compact disk is made, the parts of a compact disk player and the way a CD works with the CD player.
		Latter that year, more decisions about the Compact Disk were made, with PolyGram (a division of Phillips) deciding that polycarbonate would be the best material for Compact Disk’s, that the data should start on the inside of the disk and spiral out, and that the Diameter should be 115 mm.
		The advantage that the method of creating Compact Disks has over previous methods of creating audio storage is that the injection (or stamping) of the plastic also puts the data onto the disk.
	www.infoweb.co.nz /research/cd (1612 words)

	Compact disk (CD) and compact disk drive technology
		The videodisk did not become a commercial success, even once a few write-once optical disks of different formats and sizes were introduced.
		In 1985, the compact disk-digital audio technology was extended for computer storage, thanks again to cooperation between Phillips and Sony.
		Compact disk data format that specifies space for data, address information, and error correction codes.
	www.usbyte.com /common/compact_disk.htm (326 words)

	Optical Disk Formats: A Briefing. ERIC Digest
		The optical disks that are sold are actually "pressed," or molded from a glass master disk, in somewhat the same way as phonograph records.
		As the disk spins in the optical disk player (reader, drive), a reader head projects a beam from a low-power laser through the plastic onto the pitted data surface and interprets the reflected light.
		Optical disks lack the erasability and access speed of floppies, but these disadvantages are offset by their huge storage capacity, higher level of accuracy, and greater durability.
	palimpsest.stanford.edu /bytopic/electronic-records/electronic-storage-media/ed303176.html (1409 words)

	COMPACT DISK DRIVED (Site not responding. Last check: 2007-11-05)
		Entirely different from a conventional LP (long-playing) phonograph record, the compact disk ismade of aluminum with a transparent plastic coating; the metal disk underneath is etched by a laser beam with microscopic pits that carry a digital code representing the sounds.
		The disks are ideal for large works, such as catalogs and encyclopedias" (Webster's Concise Interactive Encyclopedia, 1994).
		The laser directs a narrow beam of light onto tracks of the spinning compact disk.
	hagar.up.ac.za /catts/learner/mignon/knoetze/Incd.html (246 words)

	Description Exercise 3: Compact Disk (CD)
		A compact disk is a circle of clear plastic (polycarbonate) about 12 cm in diameter and 1 mm thick, with a 1.5-cm 27 words diameter hole in the center.
		A compact disk is a circle of clear plastic (polycarbonate).
		A compact disk is a circle of clear plastic (polycarbonate) with a * 12-cm diameter, * 1-mm thickness, * 1.5-cm diameter hole in the center, total = 47 words * spiral track on its bottom side (stamped from a mold), and * smooth top side.
	www.ebstc.org /TechLit/analysis3d.html (3995 words)

	All about subcode (Site not responding. Last check: 2007-11-05)
		The CD player playing the recorded disk reads off the music and attenuates the high end frequencies, reducing the noise from the recording process greatly and returning the signal back to its proper level of amplification.
		If the manufacturer of the disk used this pre-emphasis process, the fourth bit of the control would be set to 1, telling the CD player to turn on the de-emphasis circuit to perform the attenuation.
		The lead-in area is the first area on a disk and gives such information as the table of contents for a disk.
	www.ee.washington.edu /conselec/CE/reports/Group.1/matt_page_individual/subcode.html (1181 words)

	CD-DA - Compact Disk Digital Audio
		Jointly developed by Philips and Sony and launched in October, 1982, CD-DA was the first incarnation of the compact disc, used to digitally record and play back music.
		Compact Disc Digital Audio: The CD which was introduces in 1983 is an audio storage device that contains up to 74 minutes of high quality stereo sound.
		Compact Disc - Digital Audio is the format used to store music on conventional CDs.
	www.auditmypc.com /acronym/CD-DA.asp (351 words)

	PHA Compact Disk Recording Examples
		Now you can list the contents of the disk image with isoinfo, or mount the image as a file system with fbkmount or hmount, then use the Solaris ls or the hfsutils hls commands to check the file lengths.
		This reads in the disk file and passes it through a software pipe to cdrecord, which writes it to the blank disk.
		So even if there were short interruptions, enough data should be in the caches to keep the laser well fed. Obviously, when copying disks this method is twice as fast as reading the source CD to a disk file, then writing the disk file to the blank CD.
	www.pha.jhu.edu /sysadmin/userprocs/cdr-examples.html (1074 words)

	Compact disk of demonstrations of auditory scene analysis
		Compact disk of demonstrations of auditory scene analysis
		A series of audio demonstrations have been made available as an audio compact disk.
		Disk title: Demonstrations of Auditory Scene Analysis: The Perceptual Organization of Sound.
	www.psych.mcgill.ca /labs/auditory/bregmancd.html (552 words)

	Linear Quadratic Controller with Fault Detection in (ResearchIndex) (Site not responding. Last check: 2007-11-05)
		Abstract: The design of the positioning controllers in Optical Disk Drives are today subjected to a trade off between an acceptable suppression of external disturbances and an acceptable immunity against surfaces defects.
		In this paper an algorithm is suggested to detect defects of the disk surface combined with an observer and a Linear Quadratic Regulator.
		As a result, the mentioned trade off is minimized and the playability of the tested compact disk player is considerably enhanced.
	citeseer.ist.psu.edu /628574.html (257 words)

	What is compact disc? - A Word Definition From the Webopedia Computer Dictionary
		Known by its abbreviation, CD, a compact disc is a polycarbonate with one or more metal layers capable of storing digital information.
		The most prevalent types of compact discs are those used by the music industry to store digital recordings and CD-ROMs used to store computer data.
		Both of these types of compact disc are read-only, which means that once the data has been recorded onto them, they can only be read, or played.
	www.webopedia.com /TERM/C/compact_disc.html (283 words)

	Blogcritics.org: Archiving and Preserving Digital Photography (Part 10.1) - Compact Disk
		The history of the CD (Compact Disk) goes all the way back to 1841 when Augustin-Louis Cauchy proposed his sampling theorem and then a year later when Charles Babbage proposed an analytical engine for performing and storing calculations that formed the basis of of the compact disk idea.
		Eventually in 1982 the Compact Disk is introduced by Sony and Phillips in Europe and to The United States in 1983 where CD-ROM prototypes were shown to the public.
		Today the main problem with the compact disk is the fact that it's storage limitations of around 650 megabytes is becoming increasingly limited and dated.
	blogcritics.org /archives/2005/03/30/105937.php (1531 words)

	Consumers receiving checks from compact disk lawsuit
		Beth LaChance, left, of Waukesha and her 6-year-old daughter, Stephanie, look for a compact disc while at the Waukesha Public Library.
		While the music companies and retailers did not admit any wrongdoing, they agreed in May to refund $67.4 million to customers who purchased compact discs from 1995 to 2000.
		What made LaChance’s settlement even better was when she learned Friday that the Waukesha Public Library would also reap the rewards by receiving 2,062 free compact discs as part of the settlement.
	www.gmtoday.com /news/local_stories/2004/March_04/03012004_02.asp (527 words)

	Rage3D Discussion Area - Virtual PC 2004 - can't compact the disk? (Site not responding. Last check: 2007-11-05)
		I tried to compact the disk in Virtual PC but it's the same exact size.
		I don't understand the instructions on this screen, I tried defraging first but it said it didn't need it and unmoveable data was at the end anyway; so then I tried Partition Magic to shrink the partition and then compact in Virtual PC but it did not help.
		A utility that is designed to "zero out"—that is, overwrite with zeros—any available blank space on a virtual hard disk.
	www.rage3d.com /board/printthread.php?t=33806651 (184 words)

	PHA Compact Disk Recording
		One Compact Disk Recordable (CD-R) and two Rewritable (CD-RW) drives are available on the Sun Microsystems workstations titanium.pha.jhu.edu, located in Bloomberg room 430 and tungsten.pha.jhu.edu, which is in room 332.
		You may need to buy more expensive blank disks to be able to record reliably at the highest drive speeds.
		While waiting for the blank disks to arrive in the mail, read a lot.
	www.pha.jhu.edu /sysadmin/userprocs/cdr.html (2241 words)

	Open and Closed Loop Parametric System Identification in (ResearchIndex) (Site not responding. Last check: 2007-11-05)
		Compact Disk Players E. Vidal, J. Stoustrup, P. Andersen, T.S. Pedersen, H....
		Abstract: the optical pick-up in a compact disk player, open loop parametric system identification can be performed.
		The parameters are identified by minimizing the least-squares loss function of the ARX model.
	citeseer.ist.psu.edu /610939.html (231 words)

	Essay on An article on the anatomy, funtion and significance of the compact disk.
		Essay on An article on the anatomy, funtion and significance of the compact disk.
		An article on the anatomy, funtion and significance of the compact disk.
		Compact disk (CD) The original creation of the compact disk began with the videodisk in the form of Video Long Play (VLP) read only systems.
	www.dedicatedwriters.com /paper/An_article_on_the_anatomy_fun-170393.html (168 words)

	Compact disk drives boost storage density: News from Toshiba Europe Storage Device Division
		Compact disk drives boost storage density: News from Toshiba Europe Storage Device Division
		For discerning users, the use of advanced fluid dynamic bearing technology permits the noise level to be as low as 16dB during idle stage.
		Toshiba's family of 1.8in hard disk drives have already become the storage device of choice for some of the hottest portable devices on the market.
	www.electronicstalk.com /news/tsh/tsh111.html (451 words)

	Document Communications Compact Disk User Program (Site not responding. Last check: 2007-11-05)
		The system will show you a list of databases contained on the disk (usually there will be on only one database).
		If you have received a new disk as part of the series, but have already installed the program, you need only install the database as above.
		When you retrieve an image from a multi-disk system, the system will cue you as to which disk the image is contained upon.
	www.comm.media.state.mn.us /docucomm/userprogram.asp (369 words)

	Audio Compact Disk - Writing and Reading the data (Site not responding. Last check: 2007-11-05)
		The data is also subject to an interleaving process (which means that adjacent data on the disk is not adjacent data from the incoming file).
		Assume that you spit on the disk and destroy several of the characters.
		The lead out at the end of the disk is a 2 Hz alternating 1 and 0[6].
	www.ee.washington.edu /conselec/CE/kuhn/cdaudio2/95x7.htm (2671 words)

	J-series™ Services Router User Guide
		The primary compact flash drive is not hot-swappable and is accessible only after you remove the cover on the back panel of the router chassis.
		In addition to the primary compact flash disk, J4300 and J6300 Services Routers have a slot in the front of the chassis for removable flash media.
		Plug the compact flash drive into a PCMCIA adapter or USB card reader on the host PC, and verify that it is recognized by the operating system.
	www.juniper.net /techpubs/software/jseries/junos71/jseries71-user-guide/jN39697.html (674 words)

	Fujitsu introduces low-cost, compact disk array - GR710 : FUJITSU Hong Kong (Site not responding. Last check: 2007-11-05)
		It comes in a compact 3U height (approximately 13 centimeters) cabinet and has a maximum memory capacity of 286GB.
		The GR 700 disk array series is developed for open system environments.
		It is a highly reliable disk array system with rich functions and thus can reduce the total cost of ownership.
	www.fujitsu.com /hk/news/2001/gr710_eng.html (589 words)

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