D2T
Short for disk-to-tape, a type of data storage backup in which the data is copied from a disk-typically a hard disk-to a magnetic tape. D2T systems are used widely in enterprises that require the safe storage of vital information in the case of disaster recovery so it can perform data recovery.
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- DAA
Short for Data Access Arrangement, part of a modem��s system for interfacing with a telephone network. The DAA provides the analog circuits that electrically isolate the modem from the phone line, separating the modem from the telephone line��s higher voltage. The FCC requires this feature of any device that connects to the PSTN, including fax […]
- DAC
(1) Short for digital-to-analog converter. (2) Short for Discretionary Access Control.
- DACS
Short for digital access and cross-connect system.
- DAFS
Short for Direct Access File System.
- DAL
Short for dedicated access line, a telecommunications line that reserves its data transmission capability for a specific user. The DAL typically is supplied by the local telephone company, but the local company does not switch calls on the line.