COA Lab
Q1. Which component in an I/O interface temporarily stores data during transfer?
a) Logic gates
b) Clock signal
c) Flip-flops
d) Control signals
Q2. In an I/O interface, what is the function of the READY signal?
a) To notify the microprocessor that the device is ready for data transfer
b) To end the data transfer process
c) To reset all control signals
d) To indicate a power-up status
Q3. What happens when the WRITE signal is set high in a microprocessor's I/O interface?
a) The microprocessor requests data from the external device.
b) The microprocessor sends data to the external device.
c) The microprocessor enters a standby mode.
d) The external device resets.
Q4. Why are control signals essential in a microprocessor I/O interface?
a) They provide temporary data storage.
b) They ensure proper timing and coordination during data transfer.
c) They increase the speed of data transfer.
d) They convert data from digital to analog form.
Q5. What will happen if the READY signal is not activated during a READ operation?
a) The microprocessor will not receive data from the external device.
b) The microprocessor will not send data to the external device.
c) The ACK signal will be triggered.
d) Data transfer will happen without synchronization.
