local bus


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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 ?
Under the deal, the four councils will together pay local bus operators more than pounds 12m for free travel for disabled people and those of retirement age in 2011-12.
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.
Local bus services gain at least pounds 1.2bn in public support each year but this could represent "poor value for money for taxpayers", the Office of Fair Trading said.
Free local bus travel for people over 60 and disabled people comes into effect from Saturday April 1.
The number of local bus passenger journeys in Britain increased by 0.8pc in 2000-01 compared with the 1999-2000 figure, provisional statistics from the Department of Transport showed.
Councillor Jeff James, who is the Vale of Glamorgan Council's cabinet member for planning and transportation, said: "This is a further blow to local bus services within the Vale of Glamorgan, happening at the same time as Veolia announcing its withdrawal of local bus services and school transport.
I offer my appreciation and admiration to them all but would like to say a very special thank you to all local bus operators, including Arriva and Leven Valley, and their drivers with particular thanks in my circumstances to the Stagecoach bus drivers who operate the No 1 bus service from Middlesbrough to Hartlepool.
BRITAIN'S pounds 3.6bn local bus sector faces a full investigation by competition watchdogs after the Office of Fair Trading (OFT) revealed concerns over higher fares for passengers.
From next April, new national passes will allow local bus travel anywhere in the country.
Carol Ann Senior, of Netherton, was one of 16,000 people in the Huddersfield and Halifax area who received a leaflet through their door from bus company First giving details of changes to local bus services.
The council's local bus service contracts are due to finish at the end of March 2012 but, in order to comply with regulations covering the award of new contracts, the council must start the re-tendering process several months before.
THE Office of Fair Trading today referred local bus services to the Competition Commission and warned that limited competition was pushing up prices for passengers.