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IT Abbreviations & Acronyms: Comprehensive Glossary

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There are currently 190 acronyms in this directory beginning with the letter D.
D
D-AMPS
Digital-Advanced Mobile Phone Service
D-VHS
Digital Video Home System
D2D2C
Disk-To-Disk-To-Cloud
D2D2T
Disk-To-Disk-To-Tape
DA
Data Analytics
DAA
Data Access Arrangement
DaaS
Desktop-as-a-Service
DaaS provider
Desktop-as-a-Service Provider
DAB
Digital Audio Broadcasting
DAC
Digital-To-Analog Conversion
DAFS
Direct Access File System
DAG
Database Availability Group
DAI
Dynamic Arp Inspection
DAM
Database Activity Monitoring
DAMA
Design Anywhere Manufacture Anywhere
DAML
Darpa Agent Markup Language
DAO
Data Access Objects
DAQ
Data Acquisition
DARC
Defense Acquisition Regulatory Council
DARPA
Defense Advanced Research Projects Agency
DAS
Direct-Attached Storage
DASD
Direct Access Storage Device
DAST
Dynamic Application Security Testing
DAT
Digital Audio Tape
DAW
Digital Audio Workstation
DB
Database
DBA
Database Administrator
DBaaS
Database-as-a-Service
dBc
Decibels Relative To Carrier
dBd
Decibels Related To Dipole Antenna
dBi
Decibels Relative To Isotropic Radiator
DBIR
Verizon Data Breach Investigations Report
dBm
Decibels Relative To One Milliwatt
DBMS
Database Management System
dBmV
Decibels Relative To One Millivolt
DBor
Database Of Record
dBr
Decibels Relative To Reference Level
DBS
Demand-Based Switching
DC
Data Center or Distribution Center
DCaaS
Data Center-as-a-Service
DCB
Data Center Bridging
DCE
Distributed Computing Environment
DCIE
Data Center Infrastructure Efficiency
DCIM
Data Center Infrastructure Management
DCIT
Digital Compression Of Increased Transmission
DCM
Dynamic Case Management
DCMA
Defense Contract Management Agency
DCML
Data Center Markup Language
DCO
Data Center Outsourcing
DCOM
Distributed Component Object Model
DCPA
Distributed Control Plane Architecture
DCPromo
Domain Controller Promoter
DCS
Distributed Control System
DDB
Amazon Dynamo Database
DDBMS
Distributed Database Management System
DDCD
Double-Density Compact Disk
DDDM
Data-Driven Decision Management
DDE
Dynamic Data Exchange
DDK
Driver Development Kit
DDL
Data Definition Language
DDM
Demand-Driven Manufacturing or Direct Digital Marketing
DDoS
Distributed Denial Of Services
DDR SDRAM
Double Data Rate Sdram
DDS, DDS-1, DDS-2, DDS-3, DDS-4
Digital Data Storage
DEC
Digital Equipment Corporation
DECT
Digital Enhanced Cordless Telecommunications
DEM
Dynamic Enterprise Modeling
Demarc
Demarcation Point
DEN
Directory-Enabled Networking
DES
Data Encryption Standard or Distributed Execution System
DevOps
Development & Operations
DFA
Design For Assembly
DFAA
Design For Automated Assembly
DFB
Distributed Feedback
DFD
Design For Disassembly
DFE
Design For Environment
DFL
Demand Flow Leadership
DFM
Demand Flow Management or Digital Footprint Management
DFS
Distributed File System
DFSC
Design For Supply Chain
DFT
Demand Flow Technology
DG
Data Governance
DHA
Directory Harvest Attack
DHCP
Dynamic Host Configuration Protocol
DICOM
Digital Imaging and Communications In Medicine
DID
Direct Inward Dialing
DIME
Direct Internet Message Encapsulation
DIMM
Dual In-Line Memory Module
DirSync
Windows Azure Active Directory Sync
DISA
Defense Information Systems Agency
Diskpart
Disk Partition Utility
Divx
Digital Video Express
DKIM
Domain Keys Identified Mail
DLC
Data Link Control
DLL
Dynamic Link Library
DLM
Data Life Cycle Management
DLP
Data Loss Prevention
DLT
Digital Linear Tape
DMA
Direct Memory Access
DMAIC
Define, Measure, Analyze, Improve, Control
DMARC
Domain-based Message Authentication Reporting and Conformance
DMI
Digital Migration Interface
DML
Data Manipulation Language
DMP
Data Management Platform or Dynamic Multi-Pathing
DMS
Database Migration Service
DMT
Discrete Multitone
DMTF
Distributed Management Task Force
DMVPN
Dynamic Multipoint Vpn
DMZ
Demilitarized Zone
DNC
Distributive Numerical Control
DNG
Digital Negative
DNIS
Dialed Number Identification Service
DNN
Dotnetnuke
DNS
Domain Name System
DNSSEC
Domain Name System Security Extensions
DNT
Do Not Track
DO
Derived Object
DoCoMo
Ntt Docomo
DOCSIS
Data Over Cable Service Interface Specifications
DOD
Direct Outward Dialing
DOE
Department Of Energy
DOI
Digital Object Identifier
DOLAP
Desktop Online Analytical Processing
DOLS
Domino Off-Line Services
DOM
Document Object Model
DoPa
Docomo Packet Transmission
DoS
Denial of Service
DOVE
IBM Dove
DP
Design Postponement
DPA
Differential Power Analysis
DPI
Deep Packet Inspection
DPL
Digital Powerline
DPM
Data Protection Management
DPMI
Dos Protected Mode Interface
DQL
Data Query Language
DR
Disaster Recovery
DRA
Data Recovery Agent
DRaaS
Disaster Recovery-as-a-Service
DRAM
Dynamic Random Access Memory
DRBD
Distributed Replicated Block Device
DRC
Design Rule Checking
DRDA
Distributed Relational Database Architecture
DRDRAM
Rambus Dynamic Random Access Memory
DRIPS
Data Reduction In Primary Storage
DRM
Digital Rights Management or Device Relationship Management
DROP
Delivery Of Real-Time Execution Information Protocol
DRP
Disaster Recovery Plan or Distribution Requirements Planning
DRS
Distributed Resource Scheduler
DSA
Digital Signature Algorithm
DSB
Dispute Settlement Body
DSC
Digital Still Camera
DSLAM
Digital Subscriber Line Access Multiplexer
DSLR
Digital Single Lense Reflux
DSML
Directory Services Markup Language
DSN
Deep Space Network or Data Source Name
DSO
Data Source Object
DSO Exploit
Data Source Object Exploit
DSOM
Distributed System Object Model
DSP
Digital Signal Processor
DSR
Demand Signal Repository or Dynamic Source Routing
DSRM
Directory Services Restore Mode
DSRP
Demand Solutions Requirements Planning
DSS
Digital Signature Standard
DSSS
Direct Sequence Spread Spectrum
DSSSL
Document Style Semantics and Specification Language
DST
Daylight Saving Time
DSTP
Data Space Transfer Protocol
DT
Directory Traversal
DTD
Document Type Definition
DTE
Direct-To-Edit or Data Terminal Equipment
DTMF
Dual Tone Multi Frequency
DTN
Disruption-Tolerant Network
DTP
Distributed Transaction Processing or Digital Text Platform
DTR
Data Transfer Rate
DTTV
Digital Terrestrial Television
DTV
Digital Television
DTX
Discontinuous Transmission
DUNDi
Distributed Universal Number Discovery
Duqu
W32.Duqu
DUT
Device Under Test
DVB
Digital Video Broadcasting
DVD
Digital Versatile Disc
DVD-A
DVD-Audio
DVI
Digital Visual Interface
DVMRP
Distance Vector Multicast Routing Protocol
DW
Data Warehouse
DWDM
Dense Wavelength Division Multiplexing
DX
Digital Transformation
DXL
Domino Extensible Language
Dynamic SQL
Dynamic Structured Query Language

A quick reference guide for Information Technology (IT) related acronyms and abbreviations.

As a service to IT personnel everywhere (and also for ourselves) we’ve compiled a comprehensive list of IT-related acronyms and abbreviations.

Acronyms can be pronounced as words, like NASA and UNESCO; as individual letters, like FBI, TNT, and ATM; or as both letters and words, like JPEG (pronounced JAY-peg).

Abbreviations formed from a string of initials and usually pronounced as individual letters are more specifically called initialisms or alphabetisms.

No matter how you refer to these IT-related terms, please use our quick reference guide or search TechTerms.com to help decode the world of IT abbreviations and acronyms.

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