- decrypt
- dedicate mode
- dedicated environment
- dedicated line
- dedicated terminal
- deep
- deep copy
- default assumption
- default data
- default entity
- default format
- default prompt
- defect density
- defer status
- deferlant
- deferred printing
- deferred update
- define method
- defining relation
- deflecting method
- deflection circuit
- deformation ratio
- defrag
- degenerate cell
- degenerate interval
- degenerate quadric
- Del key
- delay character
- delay characteristics
- delay generator
- delay line
- delay period
- delay programming
- delay spread
- delayed action
- delayed carry
- delayed coincidence
- delayed port
- delayed response
- delayed signal
- delete
- delete authority
- delete character
- delete key
- delete rights
- deletion operator
- damping
- dangle length
- dangling arc
- daniel bernoulli
- Darlington circuit
- Darlington pair
- DASD sharing
- data address
- data attribute
- data book
- data buffer
- data cache
- data cell
- data centre
- data character
- data circuit
- data component
- data connection
- data contamination
- data conversion
- data coupler
- data delimiter
- data directed
- data display
- data entry
- data exchange
- data expansion
- data flowchart
- data graphics
- data highway
- data input
- data insertion
- data inventory
- data key
- data level
- data logging
- data message
- data mode
- data phase
- data pipe
- data point
- data preview
- data protection
- data series
- data switch
- data throughput
- data transaction
- data transmitter
- data type
- data work
- data-out
- date
- date cell
- date definition