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Traditional bus VS High speed bus architecture
  • Views: 5.6K
  • Category: Computer Science
  • Published at: 24 Feb, 2017
  • Updated at: 06 Aug, 2023

Traditional bus VS High speed bus architecture

Traditional bus VS High speed bus architecture

 

Traditional Bus Architecture

A local bus connects the processor to the cache memory, which may support one or more local devices. A cache memory controller also connects this cache to this local bus and the system bus.
On the system, the bus is attached to the main memory modules. In this way, I/O transfers to and from the main memory across the system bus do not interfere with the processor’s activity. An expansion bus interface buffers data transfers between the bus and the I/O controllers on the expansion bus.

Some typical I/O devices that might be attached to the expansion bus include
Network cards (LAN)
SCSI (Small Computer System Interface)
Modem
Serial Com

Advantages of Traditional Bus Architecture

A separate cache structure insulates the processor from the requirement to access the main memory frequently.
This arrangement allows the system to support a wide variety of I/O devices and, at the same time, insulate memory to processor traffic from I/O traffic.

Disadvantages of Traditional Bus Architecture

The traditional bus architecture is reasonably efficient but begins to break down as higher, and higher performance is seen in the I/O devices.

High-Performance  Bus Architecture

Similar to the previous arrangement, there is a local bus that connects the processor to a cache controller, which is, in turn, connected to a system bus that supports the main memory.
The cache controller is integrated into a bridge or buffering device that connects to a high-speed bus.
This (High Speed) bus supports connections to high-speed LANs, such as Fast Ethernet at 100 Mbps, video and graphics workstation controllers to local peripheral busses, including SCSI and Firewire.
An expansion bus still supports lower-speed devices, with an interface buffering traffic between the expansion bus and the high-speed bus.

Advantages of High-Performance Bus Architecture

The advantage of this arrangement is that the high-speed bus brings high-demand devices into closer integration with the processor and, at the same time, is independent of the processor.
So changes in processor architecture also do not affect the high-speed bus.

Shehzad Ahmed

Shehzad Ahmed is a highly qualified expert with a Master of Philosophy in Computer Science and a decade of extensive industry experience. With his impressive track record in web development and computer science, he has not only left an indelible mark on the industry but also made substantial contributions to education. Since , he has created more than eighty exhaustive courses, paving the way for innumerable individuals interested in learning and development. His unparalleled knowledge and innate ability to elucidate complex ideas make him a highly sought-after educator and consultant. Choose Shehzad and take advantage of his exceptional balance of technical expertise and teaching prowess to propel your learning journey or project to new heights.

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