Short for cable modem termination system, a system of devices located in the cable head-end that allows cable television operators to offer high-speed Internet access to home computers. The CMTS sends and receives digital cable modem signals on a cable network, receiving signals sent upstream from a user’s cable modem, converting the signals into IP packets and routing the signals to an Internet Service Provide for connection to the Internet. The CMTS also can send signals downstream to the user’s cable modem. Cable modems cannot communicate directly with each other; they must communicate by channeling their signals through the CMTS.
The CMTS provides many of the same functions provided by the DSLAM in a DSL system.
Short for Cyan-Magenta-Yellow-Black, and pronounced as separate letters. CMYK is a color model in which all colors are described as a mixture of these four process colors. CMYK is the standard color model used in offset printing for full-color documents. Because such printing uses inks of these four basic colors, it is often called four-colorprinting. […]
Short for Converged Network Adapter, CNA is a technology that supports data networking (TCP/IP) and storage networking (Fibre Channel) traffic on a single I/O adapter. CNAs support both Enhanced Ethernet and Fiber Channel over Ethernet (FCoE).
Short for card-not-present, a term used to describe a merchant situation where the consumer makes a credit card transaction without providing the merchant with the card directly. Card-not-present situations include mail-order, telephone, or Internet transactions.
Acronym for Communication and Networking Riser. Developed by Intel, CNR is a riser card for ATX family motherboards that was developed in order to reduce the cost to OEMs of implementing LAN, home networking, audio and modem subsystems widely used in modern connected PCs. The CNR Specification is an open industry specification that defines a […]
Short for central office. In telephony, a CO is a telecommunications office centralized in a specific locality to handle the telephone service for that locality. Telephone lines are connected to the CO on a local loop. The CO switches calls between local service and long-distance service. ISDN and DSL signals also channel through the CO.