. General: Response that appears to take place instantaneously or in the same timeframe as its real world counterpart action.
2. Computer modeling: Animations that correspond to real life situations such as an auto accident or a structure under stresses and strains.
3. Data processing: Instant updating of information as opposed to delayed updating as in batch processing.
4. Data transmission: Simultaneous transfer of data such as in a telephone conversation or video conferencing as opposed to time-shifting where data is first stored and then transmitted.
5. Electronic commerce: Immediate (usually under a minute) verification and authorization of a credit card transaction.