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Archivists can bake the tape, which evaporates water molecules on the tape, to temporarily restore the binder before making a copy. Magnetic tape can also be destabilized by magnetic remanence decay, which refers to the weakening of the tape's magnetization over time. This weakens the affected tape's readability, leading to reduced sound ...
CDC used IBM-compatible 1 ⁄ 2-inch (13 mm) magnetic tapes, but also offered a 1-inch-wide (25 mm) variant, with 14 tracks (12 data tracks corresponding to the 12-bit word of CDC 6000 series peripheral processors, plus 2 parity bits) in the CDC 626 drive. [10] Early IBM tape drives, such as the IBM 727 and IBM 729, were mechanically ...
Physical destruction and degaussing destroy the digital media, requiring disposal and contributing to electronic waste while negatively impacting the carbon footprint of individuals and companies. [10] Hard drives are nearly 100% recyclable and can be collected at no charge from a variety of hard drive recyclers after they have been sanitized. [11]
[4] [5] [6] Similar effects have been documented in copying of VHS tapes. [7] This is because both services use lossy codecs on all data that is uploaded to them, even if the data being uploaded is a duplicate of data already hosted on the service, while VHS is an analog medium, where effects such as noise from interference can have a much more ...
Data remanence is the residual representation of digital data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that does not remove data previously written to the media, or through physical properties of the storage media that allow previously ...
Several companies sold VHS backup solutions in the 80s and 90s where data was converted to a video image which was then saved on a VHS tape. the Corvus "Mirror" ( U.S. patent 4380047A) the Metrum Model 64 on S-VHS tape, [2] the Danmere Backer tape backup system, [3] [4] the Alpha Microsystems Videotrax [5]
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