many of the mistakes are corrected by checking the copied data against the original data.

Digital copying

The same principle is applied digitally, in devices such as in hard disks, but in a different form. The magnetised data on the disk consists of 1s and 0s. Unlike DNA, it only has two types of information, rather than four types, however, it still has a polar concept of transfer. In this case, the read-write head

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