Compact disc - Wikipedia
网页The compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony to store and play digital audio recordings. It uses the Compact Disc Digital Audio format which typically provides 74 minutes of audio on a disc.
雷射唱片 - 维基百科，自由的百科全书
网页雷射唱片（英語： Compact Disc ，直译：微缩光盘 [1] ，縮寫：CD）是一種用以儲存數位資料的光学盘片，原被開發用作儲存數位音訊。 CD在1982年面世，至今仍然是商業錄音的標準 儲存裝置 。
Compact disc (CD) | Definition & Facts | Britannica
网页2024年9月21日 — compact disc (CD), a molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound and other information. Since its commercial introduction in 1982, the audio CD has almost completely replaced the phonograph disc (or record) for high-fidelity recorded music.
When Were CDs Invented, and How Do They Work?
网页2024年3月6日 — The invention of the standard compact disc revolutionized the way music, data, and later video were stored and distributed, marking a significant leap from analog to digital storage media. Developed jointly by Philips and Sony, the CD format was finalized in 1982 and famously documented in the Red Book standard.
Compact Disc Explained – Everything You Need To Know - History …
网页2023年7月28日 — Compact discs are portable storage devices used for recording, storing, and playing video, audio, and other forms of digital data. So how does the compact disc work? Whenever a CD is played, a laser beam focuses on the CD’s data track as it rapidly spins around; the laser beam reflects differently off the aluminum layer of the CD – the ...
What is compact disc (CD)? | Definition from TechTarget
网页A compact disc is a portable storage medium that can record, store and play back audio, video and other data in digital form. A standard compact disc measures 4.7 inches, or 120 millimeters (mm), across, is 1.2 mm thick, weighs between 15 grams and 20 grams, and has a capacity of 80 minutes of audio, or 650 megabytes (MB) to 700 MB of data. A ...
compact disc (CD) summary | Britannica
网页compact disc (CD), Molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound or other information. After its commercial introduction in 1982, the audio CD became the dominant format for high-fidelity recorded music for several decades.
How Does A Compact Disc (CD) Work? - Science ABC
网页2023年10月19日 — Compact disc CD is a digital storage format for optical media jointly developed by Philips and Sony. The CD format was originally developed for storing and playing sound recordings but was later adapted for storing data. Data on a CD is encoded with the help of a laser beam that etches tiny indentations (or bumps, if …
CD Definition - What is a CD (Compact Disc)? - TechTerms.com
网页2023年4月18日 — CD Definition - What is a CD (Compact Disc)? Home Hardware Terms CD Definition. CD. Stands for " Compact Disc." A CD is a type of optical media for storing digital audio and data. CDs are circular discs, 120 mm (4.7 in) …
When the World Got Introduced to the Amazing Compact Disc …
网页2022年11月16日 — The first compact discs and players came out in October of 1982. That means the format is now 40 years old, which in turn means that most avid music-listeners have never known a world without it.
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