What is the full form of CD ROM ?

CD ROM - Compact Disk Read-Only Memory


CD-ROMs are famously used to duplicate different items like programming, computer games and sight and sound documents (MP3, video, pictures), from a Minimal Circle (Compact disc). There are various elements that recognize Compact disc ROM players, the most significant of which is presumably their speed.

Some of the common found speeds are :-

  • Single-speed (1x)
  • Double-speed (2x)
  • Quad-speed (4x)
  • Six-speed (6x)
  • Eight-speed (8x)
  • Sixteen speed (16x)
  • Thirty two speed (32x)

The Speed changes as per the number. For instance, a 4X player access information at multiple times the speed of a solitary speed player.

Size : a standard Cd is 120 mm in Width and 1.2 mm thick.

Compact Disk Read-Only Memory, also known as CD-ROM, is a type of optical storage media used to store digital data. It was first introduced in 1982 and quickly became popular due to its high capacity and durability. CD-ROMs are still widely used today for software installation, multimedia, and data storage.CD-ROMs are similar to audio CDs in appearance but differ in their content. Instead of containing music, they contain digital data that can be accessed by a CD-ROM drive. CD-ROMs are read-only, meaning that data cannot be written or changed once it has been recorded onto the disc. This makes them ideal for distributing software, games, and other types of content that do not need to be edited or modified.

CD-ROMs are made of a polycarbonate plastic substrate that is coated with a thin layer of aluminum or gold. The data is stored on the disc in the form of small pits and lands that are read by a laser beam in the CD-ROM drive. The laser beam reflects off the pits and lands, and the reflection is detected by a sensor that converts the data into digital signals.CD-ROMs have a capacity of up to 700 megabytes (MB) of data, which is equivalent to around 80 minutes of audio. This makes them ideal for storing large amounts of data, such as software programs, multimedia files, and databases. CD-ROMs can also be used for archival purposes, as they have a lifespan of up to 100 years under ideal conditions.