expansion bus


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to expansion bus: expansion slot, PCI bus

expansion bus

[ik′span·shən ‚bəs]
(computer science)
The wiring and protocols that connect a computer's motherboard with the peripheral devices.

expansion bus

An input/output pathway from the CPU to peripheral devices, typically comprising a series of slots on the motherboard into which expansion cards are inserted. PCI is a common expansion bus in a PC and other hardware platforms. See expansion card and PC data buses. See also bus extender.
References in periodicals archive ?
There is also a 32-bit dedicated external bus that can connect to high-speed DDR1-SDRAM (Double Data Rate 1 - Synchronous DRAM), and a 32-bit expansion bus that enables connections to external flash memory or SRAM.
The 855GME and 6300ESB chipset supports a 66 MHz PCI-X expansion bus that can fully use the two Gb Ethernet ports available on the DPM with no data transfer bottleneck.
Dual SPI, i2C, two UARTs, 32 GPIOs and an expansion bus connect to a wide array of devices.
The high-speed E7500 chipset, with the PCI-64 Hub2 (P64H2), supports a PCI-X expansion bus that can fully use the two Gbps Ethernet ports available on the CHC with no data transfer bottleneck.
Contract notice: North ring 2nd phase - the first construction phase of angels blecker road to sE-chtelner road; lot 1 road, lot 2 hardware and lot 3 manufacture of noise control equipment, lot 4 channel construction of the new ag, lot 5 cable laying work of the new-netz gmbh, lot 6 road "angel blecker street" expansion bus stop and crossing area ".