Learning Objectives
- Define digital currency as currency that exists only electronically.
- Explain how digital currency can be stored, transferred and used electronically.
- Distinguish digital currency from physical notes and coins.
- Apply the concept to transactions without adding unsupported claims.
Key Terms
- Digital currency
- Currency that exists only in electronic form.
- Transaction
- A recorded transfer of value between parties.
- Digital wallet
- Software or a service used to hold information needed to manage digital currency.
- Electronic transfer
- Movement of value through computer systems rather than by physical exchange.
- Balance
- The amount of digital currency associated with an account or wallet record.
- Recipient
- The party receiving the digital currency.
- Sender
- The party authorising the transfer of digital currency.
- Verification
- Checking that a transaction meets the system rules before it is accepted.
The Concept Of Digital Currency
A digital currency is a form of currency that exists only electronically. There are no physical notes or coins representing the actual units being transferred. Ownership and transactions are represented by electronic records. Digital currency is accessed and used through computer systems. A user may interact with a digital wallet or another electronic service to view a balance and authorise a transfer. The transfer is recorded electronically rather than completed by handing over physical cash. The syllabus asks for the concept and use of digital currencies. Candidates should focus on electronic existence and electronic transactions rather than treating every online payment as identical to digital currency.
How Digital Currency Is Used
To make a payment, the sender specifies a recipient and an amount and authorises the transaction through the relevant system. The system verifies the transaction according to its rules and records the transfer. The electronic records are updated to show the change in ownership or balance. A recipient can later use the received digital currency for another transfer where the currency is accepted. The entire process depends on electronic records and networked computer systems. Transactions can be made between users in different locations without moving physical currency. However, users still need suitable devices, access to the system and protection for their account or wallet information.
Digital Records And Trust
A digital currency system must prevent the same units from being spent improperly more than once. It therefore requires a reliable method of recording and verifying transactions. In systems based on blockchain, the ledger provides a time-stamped sequence of records that cannot be altered in the basic model described by the syllabus. Candidates do not need to treat digital currency as anonymous, risk-free or universally accepted. The required understanding is that it is electronic and that transactions are recorded and tracked electronically.
Comparing Digital And Physical Currency
Physical currency can be exchanged directly as notes and coins. Digital currency requires an electronic system to represent ownership and authorise transfers. Loss of a physical note affects the holder of that note. With digital currency, loss of access information or compromise of credentials can prevent access or allow unauthorised use. This illustrates why authentication and cyber security remain important when electronic value is transferred.
Digital And Physical Currency
| Feature | Digital Currency | Physical Currency |
|---|---|---|
| Form | Exists only electronically | Exists as notes and coins |
| Transfer | Recorded through computer systems | Can be handed directly from one person to another |
| Record | Electronic transaction records are updated | A direct cash exchange may not create an automatic digital record |
| Access | Requires suitable electronic access and authorisation | Requires possession of the physical cash |
Worked Examples
Explaining A Digital Payment
Question: A user sends digital currency to another user. Describe the basic process.
- The sender enters the recipient and amount.
- The sender authorises the transaction.
- The system checks the transaction against its rules.
- The electronic transaction is recorded.
- The records or balances are updated to show the transfer.
Answer: The value is transferred through electronic records; no physical notes or coins are moved.
Identifying The Essential Feature
Question: A candidate says a digital currency is “money shown on a screen.” Improve the definition.
- Identify that screen display alone is not the defining feature.
- State that the currency itself exists only electronically.
Answer: A digital currency is currency that exists only in electronic form and is transferred through electronic records.
Examination Guidance
- Use the exact defining idea: exists only electronically.
- Describe use as an authorised electronic transaction followed by an updated record.
- Do not assume every bank-card transaction is a separate digital currency.
- Avoid unsupported claims such as all digital currencies being anonymous or having no security risks.
Common Mistakes
- Defining digital currency as any online purchase.
- Saying it is a photograph of physical money.
- Claiming transactions do not need verification.
- Confusing the digital wallet with the currency itself.
Knowledge Check
1. What is digital currency?
2. How is digital currency transferred?
3. Why are reliable transaction records necessary?
4. Does digital currency require physical notes?
5. Name one requirement for a user to access digital currency.
