| A | B |
|---|
| DDR SDRAM | Double Data-Rate Synchronous Dynamic Random Access Memory |
| DFS | Distributed File System |
| DHCP | Dynamic Host Configuration Protocol |
| DIMM | Dual Inline Memory Module |
| DIN | Deutsche Industrie Norm (German institute for Standardization) |
| DLT | Digital Linear Tape |
| DLP | Digital Light Processing or Data Loss Prevention |
| DMA | Direct Memory Access |
| DMZ | Demilitarized Zone |
| DNAT | Destination Network Address Translation |
| DNS | Domain Name Service or Domain Name Server |
| DoS | Denial of Service |
| DRAM | Dynamic Random Access Memory |
| DRM | Digital Rights Management |
| DSL | Digital Subscriber Line |
| DVD | Digital Video Disc or Digital Versatile Disc |
| DVD-RAM | Digital Video Disc-Random Access Memory |
| DVD-ROM | Digital Video Disc-Read Only Memory |
| DVD-R | Digital Video Disc-Recordable |
| DVD-RW | Digital Video Disc-Rewritable |
| DVI | Digital Visual Interface |
| DVR | Digital Video Recordable |
| ECC | Error Correcting Code or Error Checking and Correction |
| ECP | Extended Capabilities Port |
| EDO | Extended Data Out (RAM) |
| EEPROM | Electrically Erasable Programmable Read-Only Memory |
| EFS | Encrypting File System |
| EIDE | Enhanced Integrated Drive Electronics |
| ELP | Electroluminescence Panel |
| EMI | Electromagnetic Interference |
| EMP | Electromagnetic Pulse |
| EPROM | Erasable Programmable Read-Only Memory |
| EPP | Enhanced Parallel Port |
| ERD | Emergency Repair Disk |
| eSATA | External Serial Advanced Technology Attachment |
| ESD | Electrostatic Discharge |
| EULA | End User License Agreement |
| EVGA | Extended Video Graphics Adapter/Array |
| EVDO | Evolution Data Optimized or Evolution Data Only |
| Ext2 | Second Extended File System |
| exFAT | Extended File Allocation Table |
| FAT | File Allocation Table |
| FAT12 | 12-Bit File Allocation Table |
| FAT16 | 16-Bit File Allocation Table |
| FAT32 | 32-Bit File Allocation Table |
| FDD | Floppy Disk Drive |
| Fn | Function (referring to the function key on a laptop) |
| FPM | Fast Page-Mode |
| FRU | Field Replaceable Unit |
| FSB | Front Side Bus |
