"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
Previous set of "C" Acronyms
| CHI | - | Card - Host Interface |
| ChR | - | channel reliability |
| CIAS | - | circuit inventory and analysis system |
| CIC | - | content indicator code |
| CIF | - | common intermediate format |
| CIFAX | - | ciphered facsimile |
| ciphony | - | ciphered telephony |
| CiR | - | circuit reliability |
| CISC | - | Complex Instruction Set Computer |
| C/kT | - | carrier-to-receiver noise density |
| CLASS | - | custom local area signaling service |
| cm | - | centimeter |
| CMI | - | coded mark inversion |
| CMIP | - | Common Management Information Protocol |
| CMIS | - | common management information service |
| CML | - | Common Model Logic |
| CMOS | - | Complementary Metal Oxide Semiconductor |
| CMRR | - | common-mode rejection ratio |
| CNR | - | carrier-to-noise ratio |
| CNR | - | Communication and Networking Riser CNR Description |
| CNS | - | complementary network service |
| C.O. | - | central office |
| COAM | - | customer owned and maintained equipment |
| coax | - | coaxial cable |
| COB | - | Chip On Board |
| COBOL | - | common business oriented language |
| codec | - | coder-decoder [codec manufacturers] |
| COG | - | centralized ordering group |
| COMINT | - | communications intelligence |
| compandor | - | compressor-expander |
| COMPUSEC | - | computer security |
| COMSAT | - | Communications Satellite Corporation |
| COMSEC | - | communications security |
| CONEX | - | connectivity exchange |
| CONUS | - | Continental United States |
| COP | - | Committee of Principals |
| COT | - | customer office terminal |
| COTS | - | Commercial Off-The-Shelf |
| CPAS | - | cellular priority access services |
| cPCI | - | Compact PCI |
| CPE | - | customer premises equipment |
| CPGA | - | Ceramic Pin Grid Array |
| cpi | - | characters per inch |
| cpm | - | Compact Phone Module, Counts per Minute |
| CP/M | - | Control Program for Microcomputers |
| cps | - | characters per second |
| cps | - | cycles per second [deprecated] |
| CPU | - | central processing unit |
| CPU | - | communications processor unit |
| CQFP | - | Ceramic Quad Flatpack |
| CR | - | channel reliability |
| CR | - | circuit reliability |
| CRC | - | Cyclic Redundancy Check [CRC Definition] |
| CRI | - | Color Rendering Index |
| CRGEN | - | Clock Recovery Generator |
| CRITICOM | - | Critical Intelligence Communications |
| CRM | - | Critical Conduction Mode [PFC Converters] |
| CROM | - | control read-only memory |
| CRT | - | Cathode Ray Tube CRT view |
Next set of "C" Abbreviations and Acronyms
