KBC Offline Quiz 2021: Which of the following is a thin disk that is used to store data?

Printer

DVD

CPU

Keyboard

Answer: DVD

Stands for “Digital Versatile Disc.” A DVD may be a sort of optical media used for storing digital data. it’s the identical size as a CD but encompasses a larger storage capacity. Some DVDs are formatted specifically for video playback, while others may contain differing kinds of knowledge, like software programs and computer files.  A group of electronics companies, including Sony, Panasonic, Toshiba, and Philips, standardised the initial “DVD-Video” format in 1995. It provided variety of improvements over analog VHS tapes, including higher quality video, widescreen aspect ratios, custom menus, and chapter markers, which permit you to leap to different sections within a video. DVDs also can be watched repeatedly without reducing the standard of the video and in fact, they do not must be rewound. a common video With MPEG-2 compression, a DVD can store 4.7 GB of data, which is enough to carry almost 2 hours of video in 720p resolution. DVDs are also commonly used to distribute software.  

DVDs allow huge programmes to be distributed on a single disc since some applications and other software (such as computer graphics collections) are too large to fit on a single 700 MB CD. Writable DVDs also provide the way to store an oversized number of files and duplicate data. The writable DVD formats include DVD-R, DVD+R, DVD-RW, DVD+RW, and DVD-RAM. While there was a lot of uncertainty and inconsistency with the numerous writable DVD formats in the early 2000s, most DVD drivers now accept all formats except DVD-RAM. 

 A standard DVD can hold 4.7 GB of information, but variations of the initial DVD format have greater capacities. as an example, a dual-layer DVD (which has two layers of information on one side of the disc) can store 8.5 GB of knowledge. A dual-sided DVD can store 9.4 GB of information (4.7 x 2). A dual-layer, dual-sided DVD can store 17.1 GB of knowledge. The larger capacity formats aren’t supported by most standalone DVD players, but they will be used with many computer-based DVD drives. 

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