Glossary D

D3D = DirectX 3D APIs (Microsoft Windows 95/98/2000/ME/XP/2003/2006).
DAC = Digital to Analog Converter.
DAT = Digital Audio Tape.
dB = deciBel: 10 dB = 1 Bel.
DBS (1) = Digital Broadcasting System.
DBS (2) = Direct Broadcast Satellite (digital video/audio signal transmitted through geostationary orbiting satellite).
DC = Direct Current.
DCE (1) = Distributed Computing Environment (networking).
DCE (2) = Data Communications Equipment (modem to modem speed).
DDC = Display Data Channel.
DD-CD = Double Density Compact Disk: 1.3 GB (Sony).
DDE = Dynamic Data Exchange.
DDK = Driver Developers Kit (programming).
DDMA = Distributed Direct Memory Access standard.
DD-R = Double Density Compact Disk Recorder (Sony).
DD-ROM = Double Density Compact Disk Read Only Media (Sony).
DD-RW = Double Density Compact Disk Rewritable (Sony).
DDoS = Distributed Denial of Service (networks).
DDR-SDRAM = Double Data Rate Synchronous Dynamic Random Access Memory.
DDSS = Dolby Digital AC-3 5.1 Surround Sound standard (5 + 1 = 6 channels).
DEK = Data Encryption Key.
DES = Data Encryption Standard.
DHCP = Dynamic Host Configuration Protocol.
DHTML = Dynamic HyperText Markup Language (W3C).
DIB (1) = RGB/RLE encoded Microsoft Windows Device Independent Bitmap.
DIB (2) = Dual Independent Bus architecture (Intel Pentium Pro/II/III/IV).
DIFx = Driver Install Frameworks technology (Microsoft).
DIG = Digital Imaging Group (now I3A).
DIMM = Dual In-line Memory Module.
DIN = Deutsches Institut für Normung (German Institute for Standards).
DIP = Dual In-line Package.
DIVX (1) = DIgital Video eXpress (discontinued Digital Versatile Disk standard).
DivX (2) = Digital Video eXpress encoder/decoder standard.
DLC = Data Link Control (networking layer protocol).
DLL = Dynamic Link Library.
DLP = Digital Light Processing technology, also DMD (Texas Instruments).
DLS = DownLoadable Sounds standard (PCI MIDI).
DMA = Direct Memory Access.
DMD = Digital Micromirror Device, also DLP (Texas Instruments).
DME = Direct Memory Execution (Intel I-740).
DMF = Distribution Media Format: high density Floppy Disk (Microsoft).
DMI = Desktop Management Interface.
DMTF = Desktop Management Task Force.
DNA = Distributed interNet Applications architecture (Microsoft Windows).
DNS = Domain Name System (or Service) (Internet DN -> IP translator).
DOCSIS = ITU J.112 Data Over Cable Service Interface Specification.
DOF = Depth Of Field (3D video).
DOM = Document Object Model standard (W3C).
DOS (1) = Disk Operating System.
DoS (2) = Denial of Service (networks).
DPI = Dots Per Inch.
DPLSS = Dolby Pro Logic Surround Sound standard (5 channels).
DPMA = Dynamic Power Management Architecture (Intel PCI/AGP chipsets).
DPMI = DOS Protected Mode Interface.
DPMS = VESA Display Power Management Signaling standard.
DRAM = Dynamic Random Access Memory.
DR-DOS = DeviceLogics (Caldera Digital Research) Disk Operating System.
Drive-TIP = Drive Temperature Indicator Processor (IBM hard drive).
DRM = Digital Rights Management copy protection technologies.
DRP = Distribution and Replication Protocol.
DRW = Micrografx DRaW image file.
DS3D = DirectSound 3D APIs (Microsoft Windows 95/98/2000/ME/XP/2003/2006).
DSC = Digital Servo Control (Toshiba CD-ROM).
DS/DD = Double Sided Double Density (Floppy Disk standard: 720 KB).
DS/HD = Double Sided High Density (Floppy Disk standard: 1.44 MB).
DSL = Digital Subscriber Line modem standard.
DSP (1) = Digital Signal Processor.
DSP (2) = Delivery Service Partner (OEM).
DSRC = Dedicated Short Range Communication technology. Also RFID.
DSS (1) = Digital Satellite System.
DSS (2) = Digital Signature Standard certificate.
DSVD = Digital Simultaneous Voice and Data.
DTD = Document Type Definition.
DTE = Data Terminal Equipment (modem to computer speed).
DTF = Distributed Terascale Facility high speed TeraGrid network (IBM/Qwest/Intel).
DTP = DeskTop Publishing.
DTR = Data Transfer Rate (throughput).
DTS = Digital Theater Surround (3D audio).
DTS-ES = Digital Theater Surround Extended Surround (3D audio).
DTV (1) = DeskTop Video.
DTV (2) = Digital Broadcast TeleVision.
DualDisc = Digital Versatile Disk (Audio)/Compact Disk two sided hybrid (Sony).
DUN = Dial-Up Networking (Microsoft Windows).
DVD = Digital Versatile (Video) Disk.
DVD-2 = Second generation Digital Versatile Disk drive.
DVD-A = Digital Versatile Disk Audio.
DVD-R = Digital Versatile Disk Recordable 4.7 GB (Hitachi/NEC/Pioneer/Samsung/Sharp).
DVD-RAM = Digital Versatile Disk Rewritable Access Media.
DVD-ROM = Digital Versatile Disk Read Only Media.
DVD-RW = Digital Versatile Disk ReWritable 4.7 GB (Hitachi/NEC/Pioneer/Samsung/Sharp).
DVD+R = Digital Versatile Disk Recordable 4.7 GB (Philips/Mitsubishi/Sony/Ricoh/Yamaha).
DVD+RW = Digital Versatile Disk ReWritable 4.7 GB (Philips/Mitsubishi/Sony/Ricoh/Yamaha).
DVD+R DL = Digital Versatile Disk ReWritable Double Layer 8.5 GB (Philips/Mitsubishi).
DVI = Digital Video Interactive (Intel).
DVVD = Direct View Video Display (CRT/TV display).
DX (1) = X86 Intel CPU with FPU (386/DX, 486/DX).
DX (2) = DirectX APIs (Microsoft Windows 95/98/2000/ME/XP/2003/2006).
DX3D = DirectX 3D APIs (Microsoft Windows 95/98/2000/ME/XP/2003/2006).
DXF = AutoDesk picture File.
DXR2 = Dynamic eXtended Resolution 2 technology (Creative Labs DVD).
DXTC = S3 Direct3D Texture Compression APIs (S3 Savage3D/2000).