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Tuesday, July 14, 2020

In computing, what is a "bus"?

In computing, what is a "bus"?

  • Boolean Undulated Synchronization.
  • The part of the memory that processes data
  • A communication system that transfers data between components inside a computer or between computers
  • Binary Unified System

In computing, what is a "bus"?


Bus :-bidirectional universal switch
use to transfer data or power between computer components inside a computer or between computer.
point to point connection.

The bus contains multiple wires (signal lines) with addressing information describing the memory location of where the data is being sent or retrieved. Each wire in the bus carries a bit(s) of information, which means the more wires a bus has, the more information it can address. For example, a computer with a 32-bit address bus can address 4 GB of memory, and a computer with a 36-bit bus can address 64 GB of memory.

Types of computer buses

A bus is either a parallel or serial bus, and either an internal bus (local bus) or an external bus (expansion bus).
Internal bus vs. external bus

An internal bus enables the communication between internal components, such as a video card and memory. An external bus is capable of communicating with external components, such as a USB or SCSI device.
Parallel bus vs. serial bus

A computer bus can transmit its data using either a parallel or serial method of communication. With a parallel bus, data is transmitted several bits at a time. However, with a serial bus, the data is transferred one bit at a time.
Bus speeds

A computer or device's bus speed is measured in MHz, e.g., an FSB may operate at a frequency of 100 MHz. The throughput of a bus is measured in bits per second or megabytes per second.


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