O
- off-by-one error
- off-line attack
- off-the-shelf
- off-the-shelf software
- office automation
- office suite
- offline
- offline editing
- offline mode
- offset
- offshore R&D
- offshoring
- OGP
- ohm
- OID
- OIR
- OISC
- OLAP
- OLE
- OLE Automation
- OLED
- OLTS
- OMG
- omnifont recognition
- on-board computer
- on-board memory
- on-board speaker
- on-boarding
- on-chip protocol design
- oncard matching
- ONE
- one-address instruction
- one-and-half-address instruction
- one-hot encoding
- one-part code
- one-shot
- one-shot learning
- one-shot program
- one-time cipher
- one-time password
- one-time program
- one-to-one
- one-to-one mapping
- one-way function
- one’s complement
- ones density
