IBM TS2290 Manual

Also see for TS22 Series: Manual

CUControl unit.Ddanger (notice)A word to call attention to possible lethal harm to people. Contrast with attention and caution.dataAny representations such as characters or analog quantities to which meaning is or might be assigned.data bufferThe storage buffer in the control unit. This buffer is used to increase the data transfer rate between the control unit and the channel.data cartridgeA tape cartridge that is dedicated to storing data. Contrast with cleaning cartridge.data checkA synchronous or asynchronous indication of a condition that is caused by invalid data or incorrect positioning of data.dcDirect current.degaussTo make a magnetic tape nonmagnetic by using electrical coils that carry currents that neutralize the magnetism of the tape.degausserA device that makes magnetic tape nonmagnetic.degradationA decrease in quality of output or throughput or an increase in machine error rate.degradedDecreased in quality of output or throughput or increased machine error rate.deserializeTo change from serial-by-bit to parallel-by-byte.detentedA part that is held in position with a catch or lever.deviceAny hardware component or peripheral device, such as a tape drive or tape library, that can receive and send data.device driverA file that contains the code that is needed to use an attached device.DIAGDiagnostic section of maintenance information manual.differentialSee High Voltage Differential (HVD).direct access storageA storage device in which the access time is independent of the location of the data.DNSDirectory Name System. This system allows the library to recognize text-based addresses instead of numeric IP addresses.downloadTo transfer programs or data from a computer to a connected device, typically a personal computer.To transfer data from a computer to a connected device, such as a workstation or microcomputer.DRAMDynamic random-access memory.drive, magnetic tapeA mechanism for moving magnetic tape and controlling its movement.DRVDrive.DSEData security erase.DSPDigital signal processor.EEBCDICExtended binary-coded decimal interchange code.ECEdge connector. Engineering change.ECCError correction code.EEPROMElectrically erasable programmable read-only memory.EIAElectronics Industries Association.EIA unitA unit of measure, which is established by the Electronic Industries Association, equal to 44.45 millimeters (1.75 inches).ejectTo remove or force out from within.electronic mailCorrespondence in the form of messages that are transmitted between user terminals over a computer network.emailSee electronic mail.EPOEmergency power off.EPROM144 IBM TS22xx - TS2290, TS2280, and TS2270