CD-ROM or compact disc read-only memory was introduced in 1982 and refers to a type of read-only optical disc, meaning data can be read from it, but not written or modified. CD-ROMs are a popular medium for storing and distributing large amounts of data, software, multimedia, and other digital content.
CD-Rom uses a low-power laser beam to read the data encoded in the tiny pits of an optical disk, the drive then loads the data to the computer for processing.
CDs are composed of multiple layers with functionality:
In a standard CD, Pits are areas where the surface has been altered to represent a binary 1, while lands represent a binary 0. These variations are read by a laser in CD players to interpret the stored data.
As an alternative to floppy disks, CD-ROM became more and more popular and widely accepted as it offered a storage capacity of 680MB at a low cost that can store and distribute computer programs, graphics, and databases.
The read-only limitation encouraged the development of different versions of magnetic-optical hybrid storage devices but they failed to penetrate the market beyond publishers as they regularly exchange large multimedia files.
When the CD-R and CD-RW required computers to use them they were used primarily for data backup and computer software. Over time CD-R and CD-RW recorders became more accessible and user-friendly. The CD formats grew exponentially and became popular among users to create and share digital content.
If you were a 90s kid, you would likely have fond memories of watching something on a CD or using a CD. The requirement for digital storage of multimedia files expanded when the storage medium DVD was introduced in 1995. Due to the limitations that CD-ROMs like limited storage, wear, vulnerability to physical damage, and incompatibility issues led them to decline, and newer storage devices like USB flash drives , and memory cards.
The way we store data is completely different from the 90s, so as of today, both CDs and DVDs are more nostalgic than serving any storage purposes. It would be apt to say CDs are completely diminished.
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