Question

what are the different optical storage devices optical devices available available ?Technologically differentiate between these devices.

Answer 1

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Read-Only Optical Discs

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