C
- captcha image
- caption
- capture
- CAR
- car charger
- car DVR
- carbon copy
- carbon nanotube
- carbon overcoat
- card
- card acceptance device
- card issuer
- card management
- card owner
- card reader
- card security code
- Card Services
- card stock
- card swipe
- CardBus
- cardinal number
- caret
- carousel
- carpooling
- carriage return
- carrier
- Carrier Ethernet
- carrier frequency
- carrier hotel
- carry
- carry flag
