| DAC | Digital-to-Analog Converter | - | Computer and Internet |
| DBMS | Database Management System | - | Computer and Internet |
| DDR | Double Data Rate | - | Computer and Internet |
| DDR2 | Double Data Rate 2 | - | Computer and Internet |
| DHCP | Dynamic Host Configuration Protocol | - | Computer and Internet |
| DIMM | Dual In-Line Memory Module | - | Computer and Internet |
| DLL | Dynamic Link Library | - | Computer and Internet |
| DMA | Direct Memory Access | - | Computer and Internet |
| DNS | Domain Name System | - | Computer and Internet |
| DOS | Disk Operating System | - | Computer and Internet |
| DPI | Dots Per Inch | - | Computer and Internet |
| DRAM | Dynamic Random Access Memory | - | Computer and Internet |
| DRM | Digital Rights Management | - | Computer and Internet |
| DSL | Digital Subscriber Line | - | Computer and Internet |
| DSLAM | Digital Subscriber Line Access Multiplexer | - | Computer and Internet |
| DTD | Document Type Definition | - | Computer and Internet |
| DV | Digital Video | - | Computer and Internet |
| DVD | Digital Versatile Disc | - | Computer and Internet |
| DVD+R | Digital Versatile Disc Recordable | - | Computer and Internet |
| DVD+RW | Digital Versatile Disk Rewritable | - | Computer and Internet |
| DVD-R | Digital Versatile Disc Recordable | - | Computer and Internet |
| DVD-RAM | Digital Versatile Disc Random Access Memory | - | Computer and Internet |
| DVD-RW | Digital Versatile Disk Rewritable | - | Computer and Internet |
| DVI | Digital Video Interface | - | Computer and Internet |
| DVR | Digital Video Recorder | - | Computer and Internet |
