单总线结构和双总线结构之间的区别

1.单总线结构：
在单总线结构中，一种通用总线用于在外围设备和微处理器之间进行通信。由于使用一根公共总线，因此具有缺点。

2.双总线结构：
在双总线结构中，一条总线用于获取指令，而另一条总线用于获取执行所需的数据。这是克服单总线结构的瓶颈。

单总线和双总线结构之间的区别：

Single Bus Structure	Double Bus Structure
One common bus is used for communication between peripherals and processor.	Two buses are used, one for communication from peripherals and other for processor.
Instructions and data both are transferred in same bus.	Instructions and data both are transferred in different buses.
Its performance is low.	Its performance is high.
Cost of single bus structure is low.	Cost of double bus structure is high.
Number of cycles for execution is more.	Number of cycles for execution is less.
Execution of process is slow.	Execution of process is fast.
Number of registers associated are less.	Number of registers associated are more.
At a time single operand can be read from bus.	At a time two operands can be read.