Unit 5 · The internet and its uses
5.2 Digital currency
By the end of this section you should be able to
- 5.2.1 Explain what a digital currency is and how it is used
- 5.2.2 Explain how blockchain tracks transactions
Lessons
Key vocabulary
- Digital currency
- A currency that only exists electronically.
- Blockchain
- A digital ledger of time-stamped records that cannot be altered.
- Digital ledger
- A record of all transactions stored electronically.
- Block
- A group of transaction records added to the chain.
- Timestamp
- A record of the exact date and time a transaction happened.