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What is compact disk?

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What is compact disk?

What is compact disk?

compact disc (CD), a molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound and other information. Since its commercial introduction in 1982, the audio CD has almost completely replaced the phonograph disc (or record) for high-fidelity recorded music.

What are the types of compact disk?

There are three main types: standard manufactured CDs (CD-DA), CD-R recordable and CD-RW rewriteable.

  • Standard manufactured CDs can be played on any CD digital audio player.
  • CD-Rs can be played on CD-R machines and many but not all CD digital audio players.
  • CD-RWs can only be played on CD-RW compatible machines.

What is an example of a compact disc?

Compact Disc™ was introduced in 1980 to provide a mass storage medium for digital audio. It has become widely used for general-purpose data storage. Compact Discs use optical storage—the data is read off the disc using a laser. … In this section we will concentrate on the CD as an example of optical disc technology.

Is compact disk a hard disk?

For example, in the case of flat, rotational data storage media the convention is that the spelling disk is used for magnetic storage (e.g. hard disks) while disc is used for optical storage (e.g. compact discs, better known as CDs).

Why do we use a compact disc?

A compact disc is a portable storage medium that can be used to record, store and play back audio, video and other data in digital form. … A CD works by focusing a 780 nanometer wavelength semiconductor laser onto a single track of the disc.

What are the advantages of compact disk?

7. Compact Disks

Advantages of CDs Disadvantages of CDs
Small and portable Fairly fragile, easy to snap or scratch
Very cheap to produce Smaller storage capacity than a hard drive or DVD
Most computers can read CDs. If there is no CD drive, a DVD drive can usually read them Slower to access than the hard disk.

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What is CD and DVD?

CD and DVD both are high definition, high storage devices. … CD stands for Compact Disk. DVD stands for Digital Versatile Disk.

Which technology is used in compact disk?

Compact Disks are thin and circular data storage devices that uses optical laser technology. A semiconductor laser diode is used from which a beam of laser light is emitted to read and write the information (data or music), when the compact disc rotates on the player.

What is the main use of CD?

A compact disc is a portable storage medium that can be used to record, store and play back audio, video and other data in digital form.

How much music can a CD hold?

Standard CDs have a diameter of 120 millimetres (4.7 in) and are designed to hold up to 74 minutes of uncompressed stereo digital audio or about 650 MB of data. Capacity is routinely extended to 80 minutes and 700 MB by arranging more data closely on the same sized disc.

What are four types of compact disk?

  • Types of Compact Disc CD-ROM Recordable CD (CD-R) Rewritable CD (CD-RW) Audio CD Super Audio CD CD-MIDI Video CD Super Video CD Photo CD CD-i

How much space does a compact disk hold?

  • Compact discs hold 700MB of data (equivalent to 80 minutes of audio, hundreds of high-quality digital images, and small video files). Unlike DVDs, CDs are not yet available in double-sided or dual-layer formats.

What are the examples of compact disc?

  • Types of Compact Disc CD-ROM. ROM denotes for Read-only memory. … Recordable CD (CD-R) Contents can be written in this media by CD drive attached to a computer or an external CD drive. … Rewritable CD (CD-RW) This media uses metallic alloy as against dye in CD-R. … Audio CD. … Super Audio CD. … CD-MIDI. … Video CD. … Super Video CD. … Photo CD. … CD-i. …

What is the storage capacity of a compact disk?

  • What are the three main types of optical storage? CD-ROM. Compact Disc – Read-Only Memory (CD-ROM) discs can hold around 800MB of data. DVD-ROM. Digital Versatile Disc – Read-Only Memory (DVD-ROM) discs can hold around 4.7GB of data (a dual-layer DVD can hold twice that). Blu-Ray. Blu-Ray disks are a recent replacement for DVDs. DVD-RAM.

Giant Coocoo

Hello tout le monde ! Je suis Giant Coocoo, vous m'avez peut-etre deja vu dans la série le miel et les abeilles. Aujourd'hui, je vous propose de profiter de mon talent de rédacteur. J'aime écrire sur l'actualité, la santé, la culture et dans bien d'autres domaines.

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