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Describe the architecture of bus.

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By Dipali Umre

  1. Two Parts: Address Bus and Data Bus:
    • Think of the computer bus like a busy highway. It has two lanes: one for sending addresses (like street names) and one for sending actual data (like cars).
  2. Purpose of Each Part:
    • The address bus is like the lane that tells where the data needs to go. It carries information about memory locations or addresses.
    • The data bus is like the lane where actual cars (data) travel. It’s for moving the information itself.
  3. Physical Links and Control:
    • The bus is like the road system of a city, providing the physical paths for communication between different parts of the computer. It also manages the traffic flow, ensuring that data and addresses get to where they need to be.
  4. High-Speed Data Transfer:
    • The main job of the bus is to quickly move data between the central processing unit (CPU) and memory. It’s like a super-fast expressway between the brain of the computer (CPU) and its memory.
  5. Connecting I/O Devices:
    • Most devices you plug into a computer, like keyboards, mice, or printers, aren’t as fast as the CPU or memory. So, they connect to the bus through special entry points called Input/Output (I/O) ports. These ports act like on-ramps to the bus, letting slower devices communicate with the rest of the computer.
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