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Write-Once, Read-Many (WORM)

Definition - What does Write-Once, Read-Many (WORM) mean?

Write-Once, Read-Many (WORM) is a data storage technology mechanism that stores unerasable and/or unmodifiable information after it has been written on a drive. The data is stored on WORM devices. These device disks store data in a non-rewritable format to prevent users from accidentally erasing or altering sensitive information.

WORM is also known as Write Once, Run Anywhere (WORA).

Techopedia explains Write-Once, Read-Many (WORM)

Created in the late 1970s, a WORM device is a type of optical media commonly used for archiving information or hosting data archives. This useful data is written on a disk only once, which is useful because archive creators or gatekeepers typically seek information that has not been altered or modified from the original source.

This definition was written in the context of Data Storage
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