Similar to Design_Compiler
 - CAST-256CAST-256
 - CaudiumCaudium (web server)
 - CAVConstant angular velocity
 - Cave automatic virtual environmentCave automatic virtual environment
 - CC-LinkCC-Link Open Automation Networks
 - Cd (UNIX)Cd (command)
 - CDMA 1X WIN
 - CeBITCeBIT
 - CERT Coordination CenterCERT Coordination Center
 - CFL条件Courant–Friedrichs–Lewy condition
 - ChaSenChaSen
 - CHECK制約Check constraint
 - ChipCard
 - ChipCard TC-100
 - ChipCard VW-200
 - Chipmunk BasicChipmunk Basic
 - ChordChord (peer-to-peer)
- ChromebookChromebook
 - ChronyChrony
 - CIP4▲1 trends
 - CleanClean (programming language)
 - ClickOnceClickOnce
- CLIECLIÉ
 - CNS 11643CNS 11643
 - Code ReadingCode Reading
 - Coffee LakeマイクロアーキテクチャCoffee Lake
 - Comet LakeマイクロプロセッサComet Lake
 - Comma-Separated ValuesComma-separated values