Optical disc - Wikipedia
An optical disc is a flat, usually [note 1] disc-shaped object that stores information in the form of physical variations on its surface that can be read with the aid of a beam of light. Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines through the disc to ...
What is an Optical Disk? - GeeksforGeeks
2024年1月24日 · Optical Disk is a storage medium that relies on laser technology to read and write data, in shape, it is a flat circular disk which is made up of polycarbonate or a similar material with a very shiny reflective layer on the surface. they are mainly used for sharing, storing and backup Data as they have a great life span and capacity compared to ...
What are optical disks and how do they work? - TechTarget
An optical disk is an electronic data storage medium that can be written to and read from using a low-powered laser beam. Most of today's optical disks are available in three formats: compact disks ( CDs ), digital versatile disks (DVDs) -- also referred to as digital video disks -- and Blu-ray disks, which provide the highest capacities and ...
Optical disc drive - Wikipedia
In computing, an optical disc drive (ODD) is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs. Some drives can only read from certain discs, while other drives can both read and record.
光盘（存储载体）_百度百科
光盘 （英语：Optical disc，又译作 光碟 ）于1965年由美国发明家詹姆斯·拉塞尔（英语：James Russell (inventor)）发明，当时所存储的格式仍以 模拟信号 （Analog）为主。它是用激光扫描的记录和读出方式保存信息的一种介质。
Optical storage - Wikipedia
Optical storage refers to 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 disks like the compact disc (CD) and DVD.
What Is an Optical Disk? | phoenixNAP IT Glossary
2024年6月14日 · Optical disks are data storage devices that use laser technology to read and write information. Common types include CDs, DVDs, and Blu-ray discs, each offering different storage capacities and formats. Known for their durability and portability, optical disks were widely used for music, movies, software distribution, and data backup.
Optical Storage Systems - GeeksforGeeks
2023年8月3日 · An optical-disk storage system consists of a rotating disk, which is coated. With a thin metal or any other material that is highly reflective. laser beam technology is used for recording/reading data on a disk. Due to this, optical disks are also known as laser disks or …
Types, functions, and advantages of an optical disk
2022年8月2日 · Optical disks are cheap secondary storage disk that uses light to read or write data. They are non-volatile storage devices that are mostly used for data backup. The main types of optical disks are CDs, DVDs, and Blu-ray among others. They are used for bootable disks, packaging device drivers, movies, MP3 storage, and computer video games.
光碟 - 维基百科，自由的百科全书
光碟 （英語： Optical disc，又譯作 光盤）於1965年由美國发明家 占士·羅素 發明 [1]，當時所儲存的格式仍以 類比訊號 （Analog）為主。 它是用 激光 扫描的记录和读出方式保存 信息 的一种介质。 大約在1990年代中期時開始普及，具有存放大量資料的特性，1片12cm的 CD-R 約可存放1小時的 MPEG1 的影片，或74分鐘的音樂，或680MB的資料。 光碟的記錄利用了雙重自動修正的編碼 [2]：當 音訊 以24-bit從模擬信號轉變為 數碼訊號 之後，會先加入第一組的 check digit 成 …