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  2. Optical disc drive - Wikipedia

    en.wikipedia.org/wiki/Optical_disc_drive

    Optical drives for computers come in two main form factors: half-height (also known as desktop drive) and slim type (used in laptop computers and compact desktop computers). They exist as both internal and external variants. Half-height optical drives are around 4 centimetres tall, while slim type optical drives are around 1 cm tall.

  3. Caddy (hardware) - Wikipedia

    en.wikipedia.org/wiki/Caddy_(hardware)

    In computer hardware, a caddy is a container used to protect an optical media disc from damage when handling. Its functionality is similar to that of the 3.5" floppy disk 's jacket. Its use dates back to at least the Capacitance Electronic Disc in 1981, and they were also used in initial versions of the Blu-ray Disc . [ 1 ]

  4. CD-ROM - Wikipedia

    en.wikipedia.org/wiki/CD-ROM

    The CD-ROM itself may contain "weak" sectors to make copying the disc more difficult, and additional data that may be difficult or impossible to copy to a CD-R or disc image, but which the software checks for each time it is run to ensure an original disc and not an unauthorized copy is present in the computer's CD-ROM drive. [citation needed]

  5. Optical storage media writing and reading speed - Wikipedia

    en.wikipedia.org/wiki/Optical_storage_media...

    Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering. As faster drives were released, the write speeds and read speeds for optical discs were multiplied by manufacturers, far exceeding the drive speeds originally released onto the market.

  6. CD-RW - Wikipedia

    en.wikipedia.org/wiki/CD-RW

    Slim type optical drives are subject to physical limitations, thus are not able to attain rotation speeds of half-height (desktop) optical drives. They usually support CD-RW writing speeds of 16× [ 14 ] [ 15 ] [ 16 ] or 24× Z-CLV in zones of 10× CLV, 16× CLV, 20× CLV and 24× CLV towards the outer edge, of which the highest speed zone ...

  7. External storage - Wikipedia

    en.wikipedia.org/wiki/External_storage

    Today the term external storage most commonly applies to those storage devices external to a personal computer. [5] The terms refer to any storage external to the computer. Storage as distinct from memory in the early days of computing was always external to the computer as for example in the punched card devices and media. Today storage ...

  8. Compact disc - Wikipedia

    en.wikipedia.org/wiki/Compact_disc

    For the first few years of its existence, the CD was a medium used purely for audio. In 1988, the Yellow Book CD-ROM standard was established by Sony and Philips, which defined a non-volatile optical data computer data storage medium using the same physical format as audio compact discs, readable by a computer with a CD-ROM drive.

  9. Drive bay - Wikipedia

    en.wikipedia.org/wiki/Drive_bay

    A drive bay is a standard-sized area for adding hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed. Over the years since the introduction of the IBM PC, it and its compatibles have had many form factors of drive bays. Four form factors are in common use today, the 5.25-inch, 3.5-inch, 2.5-inch or ...

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