In electronics and computing, the bus is a communication channel that allows peripherals and components of an electronic system to "talk " to each other by exchanging information or system data through the transmission of signals. Unlike point-to- point only one bus can connect several devices .
The electrical connections of the bus can be realized directly on the printed circuit or via a special cable . In the first case , if the bus is parallel type that adopts a parallel transmission , it is often recognizable to view because you can see on the circuit a large group of compact and arranged in parallel tracks that touch on the various components of the circuit board. Are of this type ISA, PCI and AGP .
A bus may also adopt a serial transmission. The progress of technology seems to prefer this form to the parallel one , which among other things suffer from more space and often also to higher costs . Examples of serial buses are : SPI, I ² C , SATA , PCI Express, LonWorks , KNX , PROFIBUS , CAN and LIN .
Nessun commento:
Posta un commento