5.2. Digital currency
A subsection of Computer Science, 0478, through 5. The internet and its uses
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Complete the description of digital currencies using the terms provided. blockchains changed datachains decentralised deleted encryption passport physical address physically records time-stamp traced transaction-chains virtually A digital currency does not exist , it can only be accessed electronically. Some digital currencies have digital ledgers called These are decentralised databases where each transaction is stored as a new set of data with a and is linked to the previous set of data. This means that transactions cannot be altered, only new transactions added, which allows the location of the data to be
0478_m24_qp_12
THEORY
2024
Paper 1, Variant 2
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