data bus

connection between the CPU and the memory (Computers)

In computer architecture, a bus (bidirectional universal switch) is a subsystem that transfers data or power between computer components inside a computer or between computers, and a bus typically is controlled by device driver software. Unlike a point-to-point connection, a bus can logically connect several peripherals over the same set of wires. Each bus defines its set of connectors to physically plug devices, cards or cables together.
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A bus used to transfer data within or to and from a processing unit or storage device.

<architecture> The bus (connections between and within the CPU, memory, and peripherals) used to carry data. Other connections are the address bus and control signals.
The width and clock rate of the data bus determine its data rate (the number of bytes per second it can carry), which is one of the main factors determining the processing power of a computer. Most current processor designs use a 32-bit bus, meaning that 32 bits of data can be transferred at once. Some processors have an internal data bus which is wider than their external bus in order to make external connections cheaper while retaining some of the benefits in processing power of a wider bus.
See also data path.
(1995-01-16)

data bus
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