approximately all of the propoerty crimes are between 3 standard deviations from the mean mean,u = 3377.2 standard deviation,s = 847.4 u - 3s = 835 u + 3s = 5919.4 OPTION B p(Z Solution approximately all of the propoerty crimes are between 3 standard deviations from the mean mean,u = 3377.2 standard deviation,s = 847.4 u - 3s = 835 u + 3s = 5919.4 OPTION B p(Z.

1. Direct memory access (DMA) is a function that allows an input/output (I/O) device to send or
receive data directly to or from the main memory, bypassing the CPU to speed up memory
operations. The process is managed by a chip known as a DMA controller (DMAC).With DMA,
the CPU can process other tasks while data transfer is being performed.
In a typical process if data needs to be transfered , DMA controller puts a DMA request signal to
the CPU, asking its permission to use the bus.The CPU completes its current bus activity, stops
driving the bus, and returns a DMA acknowledge signal to the DMA controller.The DMA
controller then reads and writes one or more memory bytes, driving the address, data, and control
signals as if it were itself the CPU.
Once the transfer is complete, the DMA controller stops driving the bus and deasserts the DMA
request signal. The CPU can then remove its DMA acknowledge signal and resume control of
the bus.
Hope, It will help you.
Thanks
Solution
Direct memory access (DMA) is a function that allows an input/output (I/O) device to send or
receive data directly to or from the main memory, bypassing the CPU to speed up memory
operations. The process is managed by a chip known as a DMA controller (DMAC).With DMA,
the CPU can process other tasks while data transfer is being performed.
In a typical process if data needs to be transfered , DMA controller puts a DMA request signal to
the CPU, asking its permission to use the bus.The CPU completes its current bus activity, stops
driving the bus, and returns a DMA acknowledge signal to the DMA controller.The DMA
controller then reads and writes one or more memory bytes, driving the address, data, and control
signals as if it were itself the CPU.
Once the transfer is complete, the DMA controller stops driving the bus and deasserts the DMA
request signal. The CPU can then remove its DMA acknowledge signal and resume control of
the bus.
Hope, It will help you.
Thanks