The system is notified of a read or write operation by ___________(a) Appending an extra bit of the address(b) Enabling the read or write bits of the devices(c) Raising an appropriate interrupt signal(d) Sending a special signal along the BUSI got this question in class test.This intriguing question comes from Accessing I/O Devices in portion Input/Output Organisation of Computer Architecture

The system is notified of a read or write operation by ___________(a)

1.	The system is notified of a read or write operation by ___________(a) Appending an extra bit of the address(b) Enabling the read or write bits of the devices(c) Raising an appropriate interrupt signal(d) Sending a special signal along the BUSI got this question in class test.This intriguing question comes from Accessing I/O Devices in portion Input/Output Organisation of Computer Architecture
Answer» Correct option is (d) Sending a special signal ALONG the BUS Easy explanation: It is necessary for the PROCESSOR to send a signal intimating the REQUEST as either READ or write.

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