Bus
When referring to a computer, the bus also known as the address bus, data bus, or local bus is a data connection connection between two or more devices connected to the computer. For example, a bus enables a computer processor to communicate with the memory or a video card to communicate with the memory.
A bus is capable of being parallel or a serial bus and today all computers utilize two bus types, an internal bus or local bus and an external bus, also called the expansion bus. An internal bus enables a communication between internal components such as a computer video card and memory and an external bus is capable of communicating with external components such as a USB or SCSI device.
A computer or device's bus speed or throughput is always measured in bits per second or megabytes per second.
Also see: ADB, AGP, AMR, AT Bus, CNR, Back Side Bus, EISA, Front Side Bus, HyperTransport, IDE, Input/output bus, ISA, MCA, NuBus, Motherboard definitions, Multiplier, PCI, PCI Express, PCMCIA, SBus, SCSI, SMBus, USB, Vitesse-Bus, VLB, XT