Definition of Data Bus

A data bus is a device by means of which within a computer relevant data and information are transported.

For the computing, the bus is a series of cables that work by loading data into memory to transport it to the Central Processing Unit or CPU. In other words, a data bus is a highway or channel for the transmission of information within the computer that communicates the components of said system with the microprocessor. The bus works by ordering the information that is transmitted from different units and peripherals to the central unit, acting as a traffic light or regulator of priorities and operations to run.

Its operation is simple: in a bus, all the different nodes that compose it receive data indistinctly, those to Those for whom these data are not addressed ignore them and, on the other hand, those for whom the data are relevant, the communicate.
From a technical point of view, a data bus is a set of electrical cables or conductors in metallic tracks on the

Motherboard or "mother" from the computer. The signals that carry the data circulate on this set of conductors.

There are different types of buses. The address busFor example, it binds the CPU control block to place data during compute processes. The control bus, on the other hand, it carries data regarding the operations that the CPU is performing. The data bus itself, it carries information between hardware devices such as keyboard, mouse, printer, monitor and also of storage As the HDD or mobile memories.

Different types of buses are used in different types of computers. For PC, for example, the PCI, ISA, VESA, MCA, PATA, SATA and others like USB or Firewire are common. On the Mac, on the other hand, the same ones or others such as NuBus are used.

Topics in Data Bus