Version of DAT used for storing computer data. Four types (DDS1, DDS2, DDS3 and DDS4) exist.
A storage standard used with medium cost tape media and tape drives, used mainly for small businesses and departmental backups. DDS tapes are the same...
Digital Data Service. Private line digital service with data rates of 56/64 kbps.
Direct Digital System. A network whose infrastructure equipment is completely digital. All signals on such a network are transmitted digitally and there is no need for analog-to-digital converters.
Digital Data Service A digital data communication circuit (2.4, 4.8, 9.6 or 56K bps)
See Dataphone Digital Service
Digital Data Service. A digital transmission service supporting speeds up to 56K bps.
Design Data System. A generic term used to designate the characteristics of the particular data system that the Radio-Under- Test (RUT) is designed to work in, without making the procedure specific for a particular bit-rate, modulation mode, etc. The parameters that vary with the various systems would be chosen from a table of available systems. Appendix II shows all the parameters for systems now in operation as well as details on how these parameters are determined. Parameters for the most prevalent data systems would be shown in the individual procedures.
Digital Data Service. A channel on a T-1 circuit that generally refers to 56 Kbps circuits offered by the telephone carriers. The DDS circuit is usually a nailed circuit between two sites-that is, a circuit that is established all the time. A variation on the DDS service is the Switched 56 circuit, which can dial among several sites. See circuit switching.
Digital Data Services. "A 56- or 64-kbps digital channel that provides private line
Data Description Structure. This is a DODS construct, showing a textual representation of a data set's data model. The response to a _dds request to a DODS server is a DDS.
The Detailed Data Set (DDS) required for Detailing an incident.
Direct Digital Synthesiser
The satellite transmission of educational and intructional courses directly to schools and colleges. Existing DDS services require the use of relatively large dish antennas for adequate reception.
The prevalent tape technology for small and medium business environments. Used interchangeably with DAT.
Digital Data System. U.S. private data transmission network, established in 1974 by AT&T and based on AT&T's Dataphone data service. DDS is a digital overlay network built on the existing loop and trunking network.
Digital Data Service. A 56 or 64kbps digital private line channel.
Dataphone Digital Service (previously Digital Data Service). A digital network service available from AT&T, the Bell Operating Companies and independent telephone companies. Non-switched synchronous data rates of 2400, 4800, 9600 and 56,000 bps and switched synchronous 56,000 bps are available.
A leased digital transmission line offering speeds ranging from switched 56Kbps, to T-1 (1.544Mbps), or to T-3 service operating at 44.736Mbps. When DDS is employed, special digital modems called CSUs and DSUs are used to interface between the DDS line and the LAN.
Stands for Direct Digital Signal.
DDS is a proprietary, entry-level performance, 8mm data tape standard originally based on the DAT, or digital audio tape format. DDS is close to the end of the product life cycle and is being supplanted by more modern formats such as VXA.
Digital Data Storage: The data-storage equivalent of the Digital Audio Tape (DAT). A recording medium consisting of a tape cartridge containing a supply and take-up reel and a quantity of magnetic tape of width 4mm. Data is recorded using a helical-scan technique.
See Digital Data Service.
Direct Digital Frequency Synthesizer
Digital Data Service or System
Distributed Database System. The C. A. networking system that allows distribution of data and applications among multiple mainframe computers.
dataphone digital service. A communications service of the Bell System in which data is transmitted in digital rather than analog form, thus eliminating the need for modems. See acronym list for other uses of DDS.
Digital Data Storage form of tape media.
Digital Direct Satellite.
Digital Data Storage. Physical recording format adopted as a industry standard for DAT drives by ANSI and others.
A trademark of AT&T®, identifying a private line service for digital data communications in the data rate range between 2400 and 56,000 bps. Commonly used in countries other than the U.S.A. at 64 or 128 kbps or higher.
Digital Data Service. A service that provides digital (not analog) communication circuits and supports speeds up to 56 Kbps; for example, DATAPHONE Digital Service or the ACCUNET Spectrum of Digital Services.
An AT&T communications service in which data is transmitted in digital rather than analog form.
A digital transmission service that supports speeds up to 56Kbps/64Kbps.