I
- I-beam
- I-frame
- I2C
- IA infrastructure
- IA product
- IA professional
- IA-32
- IA-64
- IAB
- IAC
- IAD
- IANA
- IAP
- IAR
- IARPA
- IBM
- IBM POWER
- IBM-compatible PC
- IC
- ICA
- ICANN
- ICAP
- ICB
- ICC
- ICCP
- ICE
- iCOMP
- icon
- iconified window
- ICQ
- ICR
- ICS
- ICS-CERT
- ICSA
- ICSP
- ICT
- ICT industries
- ID card
- ID-1 card
- IDAPI
- IDDE
- IDE
- IDEA
- IDEF
- IDEN
- identification
- identification system
- identifier
- identifying deepfake
- identity