Uncommon · Knowledge
Optical storage
Storage of data on a medium using marks in a pattern, which can be read back with the aid of light
Optical storage is a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats have been used over time, the most common examples are optical discs such as the compact disc (CD) and the digital versatile disc (DVD).
From Wikipedia
Optical storage is a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats have been used over time, the most common examples are optical discs such as the compact disc (CD) and the digital versatile disc (DVD). Reading and writing methods have also varied over time, but most modern systems as of 2023 use lasers as the light source and use it both for reading and writing to the discs. Britannica notes that it "uses low-power laser beams to record and retrieve digital (binary) data."
Text: Wikipédia, CC BY-SA 4.0. · Image: Iainf (CC BY 2.5) ·
Related cards
-
★
Disk storage
Storage mechanisms that record data on the surface of rotating disks
-
★★★★
Compact disc
Digital optical disc data storage format
-
★
Optical disc authoring
The process of compiling content for publishing on optical discs
-
★★★★
DVD
Optical disc format for the storage and playback of digital video and other digital data
-
★★
Magnetic storage
Storage of data on a magnetized medium
-
★★★★
Blu-ray
Digital optical disc data storage format