Microprocessor
The multiplexing of address bus and data buses is used in

 all the microprocessors.
 never multiplexed.
 none of these.
 depends on the internal architecture.

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
How can we make any bit of a register “1”?

 OR that bit with “0” and remaining bits with “1”.
 OR that bit with “1” and remaining bits with “0”.
 AND that bit with “1” and remaining bits with “0”.
 AND that bit with “0” and remaining bits with “1”.

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Cycle stealing mode of DMA operation involves

 Data transfer takes place between the I/O device and memory during every alternate clock cycle
 The DMA control waiting for the microprocessor to finish execution of the program and then takes over the buses
 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

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Microprocessor