local bus


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to local bus: Expansion bus, Internal bus

local bus

(hardware)
A bus connecting a processor to memory, usually on the same circuit board as opposed to a backplane and therefore faster.

Various proprietary local busses for personal computers are still in use. The most common are Vesa local bus (VLB or VL), and Peripheral Component Interconnect (PCI). Some computers, e.g. notebook computers, use a local bus with no expansion slots. Previous non-local bus standards include ISA, EISA and MCA.

local bus

Also called the "system bus," a local bus is the pathway between the CPU, memory and peripheral controller chips. The term was popular in the early 1990s with the introduction of the VESA local bus (see VL-bus). See bus and PC data buses.


Local Bus
Peripheral controller cards plug into slots on the local bus.






BUS SPEED COMPARISON          Width  Speed  Total Data          Width  Speed  RateBus type  (bits) (MHz)  (MB/Sec)

  ISA       16      8     16

  EISA      32      8     32

  VL-bus    32     25    100

  VL-bus    32     33    132

  PCI       32     33    132

  PCI       64     33    264

  PCIe      Serial       250 per lane
References in periodicals archive ?
Riders can also use regional rail service to Glenside and then transfer to local bus service which will operate between Glenside and Ambler, making all station stops en route including North Hills, Oreland and Fort Washington.
Its chief executive John Fingleton said: "Our investigation has unearthed a range of evidence that suggests the market for local bus services is often not working as well as it should and may be resulting in higher prices for bus users.
It was the week when free local bus travel became a reality.
Local bus travel is a lifeline, providing an important means of transport within the community for those who are not able to drive.
For young people in particular, when starting work for the first time, they frequently have to rely on local bus services to get to their place of work, whether it be in Hartlepool, East Cleveland, Darlington or an out of town commercial or industrial area.
It would be a welcome change if the public supported our local bus services instead of constantly complaining and in a lot of cases over-exaggerating their complaints.
The watchdog said local bus services tended to be dominated by a small number of large players and considered complaints that new entrants were blocked from the market.
THE Office of Fair Trading yesterday referred local bus services to the Competition Commission and warned that limited competition was pushing up prices for passengers.
CUTS to local bus services, vandalism at Slaithwaite railway station and a high speed rail link to West Yorkshire were highlighted at the Conservative party conference in Manchester.
This is because local bus timetables do not link up, making onward travel extremely difficult and national travel impossible.
A disabled man who uses a motorised wheelchair has won his battle to be able to travel on his local bus.