Access time refers to (in automatic data processing): 1. The time interval between the instant at which data are called for from a storage device and the instant delivery is completed; i.e., the read time.
2. The time interval between the instant at which data are requested to be stored and the instant at which storage is completed; i.e., the write time.
3. The time interval between the instant at which data are called for from a storage device and the instant delivery begins.
4. The time interval between the instant at which data are requested to be stored and the instant at which storage is started.