Microprocessor
Cycle stealing mode of DMA operation involves

 While the microprocessor is executing a program an interface circuit takes over control of address, data, control buses when not in use by microprocessor
 DMA controller taking over the address, data and control buses while a block of data is transferred between memory and I/O device
 The DMA control waiting for the microprocessor to finish execution of the program and then takes over the buses
 Data transfer takes place between the I/O device and memory during every alternate clock cycle

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
IN an intel 8085A microprocessor, why is READY signal used?

 To indicate to user that the microprocessor is working and is ready for use.
 To provide proper WAIT states when the microprocessor is communicating with a slow peripheral device.
None of these
 To slow down a fast peripheral device so as to communicate at the microprocessor’s device.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Microprocessor