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

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

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Microprocessor
Assertion(A): Ready signal of microprocessor is used to detect whether a peripheral is ready for the data transfer or not. Reason(R): In the microprocessor during data transfer operations, the wait states are added by forcing the ready signal low.

 A is true but R is false.
 Both A & R are true and R is the correct explanation of A.
 A is false but R is true.
 Both A & R are true but R is not the correct explanation of A .

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Microprocessor
Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

A is correct R is wrong
A is wrong R is correct
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A

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Microprocessor
Which of the following statements for intel 8085 is correct?

 PC specifies the address of the instruction to be executed
 PC specifies the number of instructions executed so far
 Program Counter (PC) specifies the address of the instruction last executed
 PC specifies the address of the instruction being executed

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