- A great number of devices on a bus will cause performance to suffer.
- Propagation delay : The time it takes for devices to coordinate the use of the bus.
- The bus may become a bottleneck as the aggregate data transfer demand approaches the capacity of the bus.
1)Traditional Hierarchi Bus Architecture
- Use of a cache structure insulates CPU from frequent accesses to main memory.
- Main memory can be moved off local bus t a system bus.
- Expansion bus interface buffers data transfers between system bus and I/O controllers on expansion.
2) High-Performance Hierarchical Bus Architecture
- Incorporates a high-speed bus specifically designed to support high-capacity I/O devices.
- Bring high-demand devices into closer integration with processor.
HI FRIENDS I AM DHANESH. I ADD THIS BLOG FOR AN EDUCATION PURPOSE