CF - CompactFlash®
CF - Coupling Facility
CFA - CompactFlash Association
CFCC - Coupling Facility Control Code
CFCS - Central Florida Computer Society
CFF - Compact Font Format
CFG - Context-Free Grammar
CFI - Common Flash Interface
CFL - Cold Fluorescent Light
CFM - Cipher Feedback Mode
CFM - Code Fragment Manager
CFM - Configuration File Manager
CFML - ColdFusion Markup Language
CFRAD - Cisco® Frame Relay Access Device
CFRDC - Computer Forensics Research and Development Center
CFS - Container File System
CFSRTL - Container File System Run-Time Library
CG - Character Generator
CGA - Color Graphics Adapter
CGA - Color Graphics Array
CGE - Comb Generator Emitter
CGI - Color Graphics Interface
CGI - Common Gateway Interface
CGL - Carrier Grade Linux
CGM - Computer Graphics Metafile
CGMP - Cisco® Group Management Protocol
CGRM - Computer Graphics Reference Model
CGTP - Carrier Grade Transport Protocol
CHAD - Computational Hydrodynamics for Advanced Design
CHAM - Common Hacking Attack Methods
CHAP - Challenge Handshake Authentication Protocol
CHDL - Computer Hardware Description Language
CHIP - Client-Host Interface Processor
CHM - Cartridge Handling Mechanism
CHM - Computer History Museum
CHOWN - CHange OWNership
CHRP - Common Hardware Reference Platform
CHS - Cylinder, Head, Sector
CHTML - Compact HyperText Markup Language
CI - Component Integration
CI - Computer Intelligence
CI - Congestion Indicator
CIA - Classical IP over ATM
CIAC - Computer Incident Advisory Capability
CIC - Circuit Identification Code
CICA - Canadian Institute of Chartered Accountants
CICC - Center of the International Cooperation for Computerization
CICC - Contactless Integrated Circuit Card
CICS - Cinecom Internet Channel Server
CICS - Customer Information Control System
CID - Caller Identifier
CID - Channel Identificator
CID - Cisco® Internetwork Design
CID - Craft Interface Device
CIDER - Cooperative Intrusion Detection Evaluation and Response
CIDR - Classless InterDomain Routing
CIDX - Chemical Industry Data eXchange
CIF - Cells In Frame
CIF - Common Image Format
CIFS - Common Internet File System
CIL - Chess in Lisp
CIL - Common Intermediate Language
CIM - Common Information Model
CIM - Compaq Insight Manager
CIM - CompuServe Information Manager
CIM - Computer-Integrated Manufacturing
CIMD - Computer Interface to Message Distribution
CIMOM - Common Information Model Object Manager
CIO - Channel Input/Output
CIO - Concurrent Input/Output
CIP - Channel Interface Processor
CIP - Covisint Industry Portal
CIPA - Children's Internet Protection Act
CIPTUG - Cisco® IP Telephony Users Group
CIQ - Customer Information Quality
CIR - Committed Information Rate
CIRC - Computer Incident Response Center
CIRCA - Conceptual Information Retrieval and Communication Architecture
CIS - Card Information Structure
CIS - Center for Internet Security
CIS - COM Internet Services
CIS - Component Integration Services
CIS - CompuServe Information Service
CIS - Computer Information Systems
CIS - Contact Image Sensor
CISA - Certified Information Systems Auditor™
CISC - Complex Instruction Set Computing
CISM - Certified Information Security Manager™
CISPA - California Internet Service Providers' Association
CISSP - Certified Information Systems Security Professional
CIT - Cisco® Internetwork Troubleshooting
CITSS - Canadian Information Technology Security Symposium
CITU - Central Information Technology Unit
CIU - Core Interface Unit
CIX - Commercial Internet eXchange
CJK - Chinese, Japanese, and Korean
CK - Cipher Key
CKCS - Central Kentucky Computer Society
CL - Cirrus Logic
CLASS - Custom Local Area Signaling Service