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The switch is a sliding tab that covers a notch in the card. The miniSD and microSD formats do not directly support a write protection notch, but they can be inserted into full-size adapters which do. [citation needed] When looking at the SD card from the top, the right side (the side with the beveled corner) must be notched. [citation needed]
Write once read many. Write once read many (WORM) describes a data storage device in which information, once written, cannot be modified. This write protection affords the assurance that the data cannot be tampered with once it is written to the device, excluding the possibility of data loss from human error, computer bugs, or malware.
Replay Protected Memory Block. A Replay Protected Memory Block (RPMB) is provided as a means for a system to store data to the specific memory area in an authenticated and replay protected manner and can only be read and written via successfully authenticated read and write accesses. The data may be overwritten by the host but can never be erased.
Write blocking, a subset of write protection, is a technique used in computer forensics in order to maintain the integrity of data storage devices. By preventing all write operations to the device, e.g. a hard drive, it can be ensured that the device remains unaltered by data recovery methods.
Typically, Memory Sticks are used as storage media for a portable device, in a form that can easily be removed for access by a personal computer. For example, Sony digital compact cameras use Memory Stick for storing image files. With a Memory Stick-capable memory card reader a user can copy the pictures taken with the Sony digital camera to a ...
Comparison of a 2 GB microSD card and an 8 MB 3.3 V SmartMedia card. Typically, SmartMedia cards were used as storage for portable devices, in a form that could easily be removed for access by a PC. For example, pictures taken with a digital camera would be stored as image files on a SmartMedia card. A user could copy the images to a computer ...
microSD→miniSD→SD→CF. The following chart gives details on availability of adapters to put a given card (horizontal) in a given slot or device (vertical). This table does not take into account protocol issues in communicating with the device. Following labels are used: + (native) – A slot is native for such card.
Digital Audio/Video Transmission protection schemes. DTCP. Encrypts interconnection between devices so "digital home" technologies such as DVD players and televisions are restricted. HDCP. Transmitting device checks before sending that receiver is authorized to receive the data. The data is encrypted during transmission to prevent eavesdropping.