What is a bus in digital system ? Also explain its types.

What is a Bus?

• Imagine a bus like a highway where information travels between different parts of a computer or digital system. Instead of cars, it’s bits of data moving around.
• It’s like a group of wires connecting various parts of a computer, like the CPU, memory, and input/output devices, allowing them to communicate with each other.

Types of Bus:

• System Bus: This is like the main highway in our analogy, connecting the major components of a computer system like the CPU, memory, and input/output devices.
• Data Bus: Think of this as the lanes on the highway where data flows. It’s a bidirectional path, meaning data can travel in both directions. The width of the data bus determines how much data can be sent at once, typically in groups of 8, 16, 32, or more parallel lines.
• Address Bus: This is like the signposts or exits on the highway. It’s a one-way path used by the CPU to specify which memory location or input/output port it wants to read from or write to. The width of the address bus determines the range of memory or ports that can be accessed.
• Control Bus: This is like the traffic signals and signs on the highway. It consists of control lines that manage the activities on the bus. The CPU uses these lines to signal when it wants to read from or write to memory or ports, enabling the appropriate devices to respond.