CableCARD : A PCMCIA based HDTV Cable box replacement used with HDTVs.
CAN Bus : [Controller Area Network] A specification that defines the Data Link Layer, while ISO 11898 defines the Physical Layer. The maximum copper cable length is 1000 meters. Canbus is used as an Industrial Field bus and Automotive Bus.
Cardbus [PCMCIA] : The Implementation of the 32 bit PCI bus in a PCMCIA form factor. The page supplies a description, connector pin out, and IC/Connector Links.
C-Bus : [C-Bus II] An interface developed by Corollary Inc. as a multiprocessing chip set architecture used with motherboards having more then one linked processor [4-way and 8-way systems]. Intel acquired Corollary Inc. in 1997.
CEBus : The Consumer Electronics Bus [EIA-600], is a set of electrical standards and communication protocols for electronic devices to transmit commands and data.
Centronics Bus : A Personal Computer [PC] uni-Directional Parallel Peripheral Interface, mainly used as a Printer Bus. The maximum recommended length for a printer cable is 12 feet. The Centronics parallel bus was replaced by the IEEE-1284 printer bus in 1995 and no longer used.
CGA [Color Graphics Adapter]: The OBSOLETE CGA standard  supports several different video modes; the highest quality text mode is 80x25 characters in 16 colors. The monitors are digital with a composite signal which is at TTL logic levels; Hs, Vs, and RGBI all at TTL logic levels.
CMR Bus : The Communication and Networking Riser Specification defines a hardware scalable Original Equipment Manufacturer (OEM) mother board riser and interface that supports the audio, modem, and local area network (LAN) interfaces of core logic chip-sets. This standard does not support an expansion slot, but an OEM built in board.
CNR Bus : The Communication and Networking Riser Specification defines a hardware scalable Original Equipment Manufacturer (OEM) mother board riser and interface that supports the audio, modem, and local area network (LAN) interfaces of core logic chipsets. This standard does not support an expansion slot, but an OEM built in board.
COM: Computer-on-Modules is an Embedded computer board standard controlled by PICMG. COM uses the ETX form factor which was originally developed by Kontron.
COM-144 : Computer-on-Modules; COM144 boards have the same format as DIMM-PC Boards.
COMETX : Computer On Module - Embedded Technology eXtended, uses the same format as SOM144 Boards.
COM Express : Computer-on-Modules Express; COM Express supports PCI Express, Serial ATA, Serial DVO, and the LVDS interface. COM Express is the PCI Express version of ETX; (Embedded Technology eXtended) with a form factor of: 95mm x 111.6mm (5.75" x 8").
CompactFlash Card : A mass storage removable card which operates like an ATA drive using Flash memory devices. CompactFlash is smaller then a PCMCIA card and operates up to 66MBps using a 50 pin connector.
Compact PCI Bus : cPCI Bus is an embedded PCI bus using the Euro-card form factor.
CompactPCIexpress : PCI Express [PCIe] on a 3U x 160mm form factor in a Compact PCI [cPCI] environment. See the CompactPCI or PCI Express listing for additional information, or the PCI Express listing.
Composite Video : The single yellow video cable used in AV gear.
Control S Bus : The OBSOLETE Sony S-Link Bus used for A/V gear.
cPCI Bus : Compact-PCI Bus showing connector pin out information.
CSA Bus : [Communication Streaming Architecture] Intel Corp. uses the [proprietary] CSA Architecture which is based on the HubLink Architecture. CSA provides a bi-directional bandwidth throughput of 266 MB per second (2 Gbps). CSA is a dedicated bus that connects to the Memory Controller Hub (MCH) on the Chipsets.
CSI Bus : Configurable System Interconnect bus; The CSI bus consisted of a 32-bit address bus and a 32-bit data bus running at transfer rates of 265MB/s. The data rate is 40MBps with an 8 bit wide data bus, but expendable to 32 bits, also to 128 bits. The CSI bus supports a 32 bit address bus, an 8-bit data read bus, an 8-bit data write bus, clock line, control signals, and address section lines. The CSI bus was developed by Triscend, as a proprietary, scalable, processor-independent interface for the Embedded SOC 8032/8051 processors.
CSI Bus : Common System Interface is a point-to-point processor interconnect being developed by Intel to replace their processor front side bus interface. CSI is defined as a variable width, point to point, packet-based interface implemented as two uni-directional links with low-voltage differential signaling. A full width CSI link is physically configured with 20 bit lanes in each direction.
CT Bus : The Computer Telephony Bus is a Telcom Bus implemented on either a PCI or cPCI card as a sub bus interconnected via a cable.
An alphabetic listing of released interface buses. Primarily the links point to pages that describe the physical and electrical interfaces. A page list of Protocol Definitions.