What kind of device is a dvdrom?

dvdrom is a read-only digital versatile disc device. The full name of dvdrom is "Digital Video Disc-Read Only Memory", which means "Digital Universal Disc Read-Only Memory" in Chinese. It is usually used to store data files that cannot be changed, rewritten or deleted by large software applications.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What kind of device is dvdrom?

The dvd_rom used in computer systems is an optical disc that uses optical technology for information storage.

DVD-ROM English Digital Video Disc-Read Only Memory, Chinese meaning is digital versatile disc read-only memory), DVD random access memory, is a read-only digital versatile disc (DVD), usually used to store large Software application, similar to a compact disk read-only memory (CD-ROM), but with a larger capacity. DVD-ROM stores approximately 4.38GB of data. CD-ROMs typically store 650MB of data.

From a strict classification perspective, this kind of DVD should be called DVD-Video (DVD for short). It is a read-only DVD disc, which is composed of a dedicated disc. machine playback.

DVD-ROM Data files that cannot be changed, rewritten, or deleted. A personal computer (PC) with a DVD-ROM or DVD-RAM drive is designed to read DVD-ROM discs. In general, DVD-rom discs cannot be used with a DVD drive connected to a home theater system or television. However, many DVD-rom drives can usually read DVD movie discs.

DVD-ROM is a type of dvd. Blank DVDs are usually DVD-R or DVD R and have a read and write format. R or -R refers to the format standard and is a rewritable or recordable DVD.

Compared to CD-ROM, DVD-ROM is 5 inches in diameter and 1.2 mm thick. But because DVD-ROM uses shorter wavelength lasers and tighter pits, disc capacity increases. In fact, the smallest DVD-ROMs can store approximately 7 times as much data as CD-ROMs.

With the continuous development and innovation of technology, DVD now has a broader connotation. It is no longer limited to the category of Digital Video Disc, but has evolved into Digital Versatile Disc (Digital Versatile Disc). Unlike CDs, DVDs were originally designed as multi-purpose optical discs. There are five formats in the original DVD specification, which are called DVD-AUDIO for storing music.

The above is the detailed content of What kind of device is a dvdrom?. For more information, please follow other related articles on the PHP Chinese website!